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-rw-r--r--fs/Kconfig1
-rw-r--r--fs/aio.c6
-rw-r--r--fs/binfmt_elf.c1
-rw-r--r--fs/block_dev.c6
-rw-r--r--fs/btrfs/async-thread.c15
-rw-r--r--fs/btrfs/extent-tree.c8
-rw-r--r--fs/btrfs/inode.c39
-rw-r--r--fs/btrfs/tree-log.c13
-rw-r--r--fs/btrfs/uuid-tree.c4
-rw-r--r--fs/ceph/addr.c4
-rw-r--r--fs/ceph/caps.c7
-rw-r--r--fs/ceph/dir.c5
-rw-r--r--fs/ceph/inode.c3
-rw-r--r--fs/ceph/mds_client.c14
-rw-r--r--fs/cifs/readdir.c1
-rw-r--r--fs/coredump.c18
-rw-r--r--fs/dax.c58
-rw-r--r--fs/dcache.c7
-rw-r--r--fs/direct-io.c3
-rw-r--r--fs/ext2/Kconfig1
-rw-r--r--fs/ext4/Kconfig1
-rw-r--r--fs/f2fs/segment.c4
-rw-r--r--fs/f2fs/super.c6
-rw-r--r--fs/fscache/cookie.c5
-rw-r--r--fs/fscache/netfs.c1
-rw-r--r--fs/fscache/object.c32
-rw-r--r--fs/fuse/dev.c3
-rw-r--r--fs/fuse/dir.c2
-rw-r--r--fs/iomap.c3
-rw-r--r--fs/libfs.c3
-rw-r--r--fs/namespace.c64
-rw-r--r--fs/nfs/nfs4proc.c33
-rw-r--r--fs/nfs/nfs4state.c2
-rw-r--r--fs/nfs/pnfs.c2
-rw-r--r--fs/nfsd/nfs4layouts.c5
-rw-r--r--fs/nfsd/nfs4state.c19
-rw-r--r--fs/nfsd/nfs4xdr.c4
-rw-r--r--fs/nfsd/state.h4
-rw-r--r--fs/nfsd/vfs.c97
-rw-r--r--fs/ocfs2/dlmglue.c10
-rw-r--r--fs/ocfs2/stackglue.c6
-rw-r--r--fs/ocfs2/stackglue.h3
-rw-r--r--fs/overlayfs/namei.c27
-rw-r--r--fs/posix_acl.c9
-rw-r--r--fs/proc/base.c2
-rw-r--r--fs/proc/proc_sysctl.c3
-rw-r--r--fs/romfs/super.c23
-rw-r--r--fs/ubifs/Kconfig2
-rw-r--r--fs/ubifs/dir.c58
-rw-r--r--fs/ubifs/ioctl.c3
-rw-r--r--fs/ubifs/journal.c2
-rw-r--r--fs/ubifs/tnc.c25
-rw-r--r--fs/userfaultfd.c37
-rw-r--r--fs/xfs/libxfs/xfs_ag_resv.c70
-rw-r--r--fs/xfs/libxfs/xfs_alloc.c115
-rw-r--r--fs/xfs/libxfs/xfs_alloc.h2
-rw-r--r--fs/xfs/libxfs/xfs_attr.c6
-rw-r--r--fs/xfs/libxfs/xfs_bmap.c51
-rw-r--r--fs/xfs/libxfs/xfs_bmap.h6
-rw-r--r--fs/xfs/libxfs/xfs_bmap_btree.c3
-rw-r--r--fs/xfs/libxfs/xfs_dir2.c39
-rw-r--r--fs/xfs/libxfs/xfs_dir2.h8
-rw-r--r--fs/xfs/libxfs/xfs_ialloc_btree.c90
-rw-r--r--fs/xfs/libxfs/xfs_ialloc_btree.h3
-rw-r--r--fs/xfs/libxfs/xfs_inode_buf.c10
-rw-r--r--fs/xfs/libxfs/xfs_sb.c2
-rw-r--r--fs/xfs/xfs_aops.c19
-rw-r--r--fs/xfs/xfs_bmap_util.c28
-rw-r--r--fs/xfs/xfs_buf.c1
-rw-r--r--fs/xfs/xfs_dquot.c4
-rw-r--r--fs/xfs/xfs_inode.c23
-rw-r--r--fs/xfs/xfs_iomap.c2
-rw-r--r--fs/xfs/xfs_iops.c50
-rw-r--r--fs/xfs/xfs_linux.h6
-rw-r--r--fs/xfs/xfs_log.c12
-rw-r--r--fs/xfs/xfs_mount.h1
-rw-r--r--fs/xfs/xfs_qm.c3
77 files changed, 805 insertions, 463 deletions
diff --git a/fs/Kconfig b/fs/Kconfig
index c2a377cdda2b..83eab52fb3f6 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -38,6 +38,7 @@ config FS_DAX
bool "Direct Access (DAX) support"
depends on MMU
depends on !(ARM || MIPS || SPARC)
+ select FS_IOMAP
help
Direct Access (DAX) can be used on memory-backed block devices.
If the block device supports DAX and the filesystem supports DAX,
diff --git a/fs/aio.c b/fs/aio.c
index 4ab67e8cb776..873b4ca82ccb 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1085,7 +1085,8 @@ static void aio_complete(struct kiocb *kiocb, long res, long res2)
* Tell lockdep we inherited freeze protection from submission
* thread.
*/
- __sb_writers_acquired(file_inode(file)->i_sb, SB_FREEZE_WRITE);
+ if (S_ISREG(file_inode(file)->i_mode))
+ __sb_writers_acquired(file_inode(file)->i_sb, SB_FREEZE_WRITE);
file_end_write(file);
}
@@ -1525,7 +1526,8 @@ static ssize_t aio_write(struct kiocb *req, struct iocb *iocb, bool vectored,
* by telling it the lock got released so that it doesn't
* complain about held lock when we return to userspace.
*/
- __sb_writers_release(file_inode(file)->i_sb, SB_FREEZE_WRITE);
+ if (S_ISREG(file_inode(file)->i_mode))
+ __sb_writers_release(file_inode(file)->i_sb, SB_FREEZE_WRITE);
}
kfree(iovec);
return ret;
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 29a02daf08a9..422370293cfd 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -2298,6 +2298,7 @@ static int elf_core_dump(struct coredump_params *cprm)
goto end_coredump;
}
}
+ dump_truncate(cprm);
if (!elf_core_write_extra_data(cprm))
goto end_coredump;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 5db5d1340d69..3c47614a4b32 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -331,7 +331,7 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages)
struct blk_plug plug;
struct blkdev_dio *dio;
struct bio *bio;
- bool is_read = (iov_iter_rw(iter) == READ);
+ bool is_read = (iov_iter_rw(iter) == READ), is_sync;
loff_t pos = iocb->ki_pos;
blk_qc_t qc = BLK_QC_T_NONE;
int ret;
@@ -344,7 +344,7 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages)
bio_get(bio); /* extra ref for the completion handler */
dio = container_of(bio, struct blkdev_dio, bio);
- dio->is_sync = is_sync_kiocb(iocb);
+ dio->is_sync = is_sync = is_sync_kiocb(iocb);
if (dio->is_sync)
dio->waiter = current;
else
@@ -398,7 +398,7 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages)
}
blk_finish_plug(&plug);
- if (!dio->is_sync)
+ if (!is_sync)
return -EIOCBQUEUED;
for (;;) {
diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c
index 63d197724519..ff0b0be92d61 100644
--- a/fs/btrfs/async-thread.c
+++ b/fs/btrfs/async-thread.c
@@ -273,6 +273,8 @@ static void run_ordered_work(struct __btrfs_workqueue *wq)
unsigned long flags;
while (1) {
+ void *wtag;
+
spin_lock_irqsave(lock, flags);
if (list_empty(list))
break;
@@ -299,11 +301,13 @@ static void run_ordered_work(struct __btrfs_workqueue *wq)
spin_unlock_irqrestore(lock, flags);
/*
- * we don't want to call the ordered free functions
- * with the lock held though
+ * We don't want to call the ordered free functions with the
+ * lock held though. Save the work as tag for the trace event,
+ * because the callback could free the structure.
*/
+ wtag = work;
work->ordered_free(work);
- trace_btrfs_all_work_done(work);
+ trace_btrfs_all_work_done(wq->fs_info, wtag);
}
spin_unlock_irqrestore(lock, flags);
}
@@ -311,6 +315,7 @@ static void run_ordered_work(struct __btrfs_workqueue *wq)
static void normal_work_helper(struct btrfs_work *work)
{
struct __btrfs_workqueue *wq;
+ void *wtag;
int need_order = 0;
/*
@@ -324,6 +329,8 @@ static void normal_work_helper(struct btrfs_work *work)
if (work->ordered_func)
need_order = 1;
wq = work->wq;
+ /* Safe for tracepoints in case work gets freed by the callback */
+ wtag = work;
trace_btrfs_work_sched(work);
thresh_exec_hook(wq);
@@ -333,7 +340,7 @@ static void normal_work_helper(struct btrfs_work *work)
run_ordered_work(wq);
}
if (!need_order)
- trace_btrfs_all_work_done(work);
+ trace_btrfs_all_work_done(wq->fs_info, wtag);
}
void btrfs_init_work(struct btrfs_work *work, btrfs_work_func_t uniq_func,
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index e97302f437a1..dcd2e798767e 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2522,11 +2522,11 @@ static noinline int __btrfs_run_delayed_refs(struct btrfs_trans_handle *trans,
if (ref && ref->seq &&
btrfs_check_delayed_seq(fs_info, delayed_refs, ref->seq)) {
spin_unlock(&locked_ref->lock);
- btrfs_delayed_ref_unlock(locked_ref);
spin_lock(&delayed_refs->lock);
locked_ref->processing = 0;
delayed_refs->num_heads_ready++;
spin_unlock(&delayed_refs->lock);
+ btrfs_delayed_ref_unlock(locked_ref);
locked_ref = NULL;
cond_resched();
count++;
@@ -2572,7 +2572,10 @@ static noinline int __btrfs_run_delayed_refs(struct btrfs_trans_handle *trans,
*/
if (must_insert_reserved)
locked_ref->must_insert_reserved = 1;
+ spin_lock(&delayed_refs->lock);
locked_ref->processing = 0;
+ delayed_refs->num_heads_ready++;
+ spin_unlock(&delayed_refs->lock);
btrfs_debug(fs_info,
"run_delayed_extent_op returned %d",
ret);
@@ -7384,7 +7387,8 @@ btrfs_lock_cluster(struct btrfs_block_group_cache *block_group,
spin_unlock(&cluster->refill_lock);
- down_read(&used_bg->data_rwsem);
+ /* We should only have one-level nested. */
+ down_read_nested(&used_bg->data_rwsem, SINGLE_DEPTH_NESTING);
spin_lock(&cluster->refill_lock);
if (used_bg == cluster->block_group)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index f2b281ad7af6..1e861a063721 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3835,10 +3835,7 @@ cache_acl:
break;
case S_IFDIR:
inode->i_fop = &btrfs_dir_file_operations;
- if (root == fs_info->tree_root)
- inode->i_op = &btrfs_dir_ro_inode_operations;
- else
- inode->i_op = &btrfs_dir_inode_operations;
+ inode->i_op = &btrfs_dir_inode_operations;
break;
case S_IFLNK:
inode->i_op = &btrfs_symlink_inode_operations;
@@ -4505,8 +4502,19 @@ search_again:
if (found_type > min_type) {
del_item = 1;
} else {
- if (item_end < new_size)
+ if (item_end < new_size) {
+ /*
+ * With NO_HOLES mode, for the following mapping
+ *
+ * [0-4k][hole][8k-12k]
+ *
+ * if truncating isize down to 6k, it ends up
+ * isize being 8k.
+ */
+ if (btrfs_fs_incompat(root->fs_info, NO_HOLES))
+ last_size = new_size;
break;
+ }
if (found_key.offset >= new_size)
del_item = 1;
else
@@ -5710,6 +5718,7 @@ static struct inode *new_simple_dir(struct super_block *s,
inode->i_ino = BTRFS_EMPTY_SUBVOL_DIR_OBJECTID;
inode->i_op = &btrfs_dir_ro_inode_operations;
+ inode->i_opflags &= ~IOP_XATTR;
inode->i_fop = &simple_dir_operations;
inode->i_mode = S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO;
inode->i_mtime = current_time(inode);
@@ -7059,7 +7068,7 @@ insert:
write_unlock(&em_tree->lock);
out:
- trace_btrfs_get_extent(root, em);
+ trace_btrfs_get_extent(root, inode, em);
btrfs_free_path(path);
if (trans) {
@@ -7215,7 +7224,6 @@ static struct extent_map *btrfs_create_dio_extent(struct inode *inode,
struct extent_map *em = NULL;
int ret;
- down_read(&BTRFS_I(inode)->dio_sem);
if (type != BTRFS_ORDERED_NOCOW) {
em = create_pinned_em(inode, start, len, orig_start,
block_start, block_len, orig_block_len,
@@ -7234,7 +7242,6 @@ static struct extent_map *btrfs_create_dio_extent(struct inode *inode,
em = ERR_PTR(ret);
}
out:
- up_read(&BTRFS_I(inode)->dio_sem);
return em;
}
@@ -7623,11 +7630,18 @@ static void adjust_dio_outstanding_extents(struct inode *inode,
* within our reservation, otherwise we need to adjust our inode
* counter appropriately.
*/
- if (dio_data->outstanding_extents) {
+ if (dio_data->outstanding_extents >= num_extents) {
dio_data->outstanding_extents -= num_extents;
} else {
+ /*
+ * If dio write length has been split due to no large enough
+ * contiguous space, we need to compensate our inode counter
+ * appropriately.
+ */
+ u64 num_needed = num_extents - dio_data->outstanding_extents;
+
spin_lock(&BTRFS_I(inode)->lock);
- BTRFS_I(inode)->outstanding_extents += num_extents;
+ BTRFS_I(inode)->outstanding_extents += num_needed;
spin_unlock(&BTRFS_I(inode)->lock);
}
}
@@ -8685,6 +8699,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
dio_data.unsubmitted_oe_range_start = (u64)offset;
dio_data.unsubmitted_oe_range_end = (u64)offset;
current->journal_info = &dio_data;
+ down_read(&BTRFS_I(inode)->dio_sem);
} else if (test_bit(BTRFS_INODE_READDIO_NEED_LOCK,
&BTRFS_I(inode)->runtime_flags)) {
inode_dio_end(inode);
@@ -8697,6 +8712,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
iter, btrfs_get_blocks_direct, NULL,
btrfs_submit_direct, flags);
if (iov_iter_rw(iter) == WRITE) {
+ up_read(&BTRFS_I(inode)->dio_sem);
current->journal_info = NULL;
if (ret < 0 && ret != -EIOCBQUEUED) {
if (dio_data.reserve)
@@ -9205,6 +9221,7 @@ static int btrfs_truncate(struct inode *inode)
break;
}
+ btrfs_block_rsv_release(fs_info, rsv, -1);
ret = btrfs_block_rsv_migrate(&fs_info->trans_block_rsv,
rsv, min_size, 0);
BUG_ON(ret); /* shouldn't happen */
@@ -10572,8 +10589,6 @@ static const struct inode_operations btrfs_dir_inode_operations = {
static const struct inode_operations btrfs_dir_ro_inode_operations = {
.lookup = btrfs_lookup,
.permission = btrfs_permission,
- .get_acl = btrfs_get_acl,
- .set_acl = btrfs_set_acl,
.update_time = btrfs_update_time,
};
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index f10bf5213ed8..eeffff84f280 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -37,6 +37,7 @@
*/
#define LOG_INODE_ALL 0
#define LOG_INODE_EXISTS 1
+#define LOG_OTHER_INODE 2
/*
* directory trouble cases
@@ -4641,7 +4642,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
if (S_ISDIR(inode->i_mode) ||
(!test_bit(BTRFS_INODE_NEEDS_FULL_SYNC,
&BTRFS_I(inode)->runtime_flags) &&
- inode_only == LOG_INODE_EXISTS))
+ inode_only >= LOG_INODE_EXISTS))
max_key.type = BTRFS_XATTR_ITEM_KEY;
else
max_key.type = (u8)-1;
@@ -4665,7 +4666,13 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
return ret;
}
- mutex_lock(&BTRFS_I(inode)->log_mutex);
+ if (inode_only == LOG_OTHER_INODE) {
+ inode_only = LOG_INODE_EXISTS;
+ mutex_lock_nested(&BTRFS_I(inode)->log_mutex,
+ SINGLE_DEPTH_NESTING);
+ } else {
+ mutex_lock(&BTRFS_I(inode)->log_mutex);
+ }
/*
* a brute force approach to making sure we get the most uptodate
@@ -4817,7 +4824,7 @@ again:
* unpin it.
*/
err = btrfs_log_inode(trans, root, other_inode,
- LOG_INODE_EXISTS,
+ LOG_OTHER_INODE,
0, LLONG_MAX, ctx);
iput(other_inode);
if (err)
diff --git a/fs/btrfs/uuid-tree.c b/fs/btrfs/uuid-tree.c
index 161342b73ce5..726f928238d0 100644
--- a/fs/btrfs/uuid-tree.c
+++ b/fs/btrfs/uuid-tree.c
@@ -352,7 +352,5 @@ skip:
out:
btrfs_free_path(path);
- if (ret)
- btrfs_warn(fs_info, "btrfs_uuid_tree_iterate failed %d", ret);
- return 0;
+ return ret;
}
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 9cd0c0ea7cdb..e4b066cd912a 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -502,9 +502,9 @@ static struct ceph_snap_context *get_oldest_context(struct inode *inode,
dout(" head snapc %p has %d dirty pages\n",
snapc, ci->i_wrbuffer_ref_head);
if (truncate_size)
- *truncate_size = capsnap->truncate_size;
+ *truncate_size = ci->i_truncate_size;
if (truncate_seq)
- *truncate_seq = capsnap->truncate_seq;
+ *truncate_seq = ci->i_truncate_seq;
}
spin_unlock(&ci->i_ceph_lock);
return snapc;
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index baea866a6751..94fd76d04683 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2591,8 +2591,13 @@ int ceph_get_caps(struct ceph_inode_info *ci, int need, int want,
add_wait_queue(&ci->i_cap_wq, &wait);
while (!try_get_cap_refs(ci, need, want, endoff,
- true, &_got, &err))
+ true, &_got, &err)) {
+ if (signal_pending(current)) {
+ ret = -ERESTARTSYS;
+ break;
+ }
wait_woken(&wait, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
+ }
remove_wait_queue(&ci->i_cap_wq, &wait);
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index d7a93696663b..8ab1fdf0bd49 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1230,7 +1230,8 @@ static int ceph_d_revalidate(struct dentry *dentry, unsigned int flags)
struct ceph_mds_client *mdsc =
ceph_sb_to_client(dir->i_sb)->mdsc;
struct ceph_mds_request *req;
- int op, mask, err;
+ int op, err;
+ u32 mask;
if (flags & LOOKUP_RCU)
return -ECHILD;
@@ -1245,7 +1246,7 @@ static int ceph_d_revalidate(struct dentry *dentry, unsigned int flags)
mask = CEPH_STAT_CAP_INODE | CEPH_CAP_AUTH_SHARED;
if (ceph_security_xattr_wanted(dir))
mask |= CEPH_CAP_XATTR_SHARED;
- req->r_args.getattr.mask = mask;
+ req->r_args.getattr.mask = cpu_to_le32(mask);
err = ceph_mdsc_do_request(mdsc, NULL, req);
switch (err) {
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 398e5328b309..5e659d054b40 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -305,7 +305,8 @@ static int frag_tree_split_cmp(const void *l, const void *r)
{
struct ceph_frag_tree_split *ls = (struct ceph_frag_tree_split*)l;
struct ceph_frag_tree_split *rs = (struct ceph_frag_tree_split*)r;
- return ceph_frag_compare(ls->frag, rs->frag);
+ return ceph_frag_compare(le32_to_cpu(ls->frag),
+ le32_to_cpu(rs->frag));
}
static bool is_frag_child(u32 f, struct ceph_inode_frag *frag)
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 4f49253387a0..c9d2e553a6c4 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -288,12 +288,13 @@ static int parse_reply_info_extra(void **p, void *end,
struct ceph_mds_reply_info_parsed *info,
u64 features)
{
- if (info->head->op == CEPH_MDS_OP_GETFILELOCK)
+ u32 op = le32_to_cpu(info->head->op);
+
+ if (op == CEPH_MDS_OP_GETFILELOCK)
return parse_reply_info_filelock(p, end, info, features);
- else if (info->head->op == CEPH_MDS_OP_READDIR ||
- info->head->op == CEPH_MDS_OP_LSSNAP)
+ else if (op == CEPH_MDS_OP_READDIR || op == CEPH_MDS_OP_LSSNAP)
return parse_reply_info_dir(p, end, info, features);
- else if (info->head->op == CEPH_MDS_OP_CREATE)
+ else if (op == CEPH_MDS_OP_CREATE)
return parse_reply_info_create(p, end, info, features);
else
return -EIO;
@@ -2106,6 +2107,11 @@ static int __do_request(struct ceph_mds_client *mdsc,
dout("do_request mdsmap err %d\n", err);
goto finish;
}
+ if (mdsc->mdsmap->m_epoch == 0) {
+ dout("do_request no mdsmap, waiting for map\n");
+ list_add(&req->r_wait, &mdsc->waiting_for_map);
+ goto finish;
+ }
if (!(mdsc->fsc->mount_options->flags &
CEPH_MOUNT_OPT_MOUNTWAIT) &&
!ceph_mdsmap_is_cluster_available(mdsc->mdsmap)) {
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 8f6a2a5863b9..a27fc8791551 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -285,6 +285,7 @@ initiate_cifs_search(const unsigned int xid, struct file *file)
rc = -ENOMEM;
goto error_exit;
}
+ spin_lock_init(&cifsFile->file_info_lock);
file->private_data = cifsFile;
cifsFile->tlink = cifs_get_tlink(tlink);
tcon = tlink_tcon(tlink);
diff --git a/fs/coredump.c b/fs/coredump.c
index e525b6017cdf..ae6b05629ca1 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -833,3 +833,21 @@ int dump_align(struct coredump_params *cprm, int align)
return mod ? dump_skip(cprm, align - mod) : 1;
}
EXPORT_SYMBOL(dump_align);
+
+/*
+ * Ensures that file size is big enough to contain the current file
+ * postion. This prevents gdb from complaining about a truncated file
+ * if the last "write" to the file was dump_skip.
+ */
+void dump_truncate(struct coredump_params *cprm)
+{
+ struct file *file = cprm->file;
+ loff_t offset;
+
+ if (file->f_op->llseek && file->f_op->llseek != no_llseek) {
+ offset = file->f_op->llseek(file, 0, SEEK_CUR);
+ if (i_size_read(file->f_mapping->host) < offset)
+ do_truncate(file->f_path.dentry, offset, 0, file);
+ }
+}
+EXPORT_SYMBOL(dump_truncate);
diff --git a/fs/dax.c b/fs/dax.c
index 5c74f60d0a50..c45598b912e1 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -691,8 +691,8 @@ static void dax_mapping_entry_mkclean(struct address_space *mapping,
pgoff_t index, unsigned long pfn)
{
struct vm_area_struct *vma;
- pte_t *ptep;
- pte_t pte;
+ pte_t pte, *ptep = NULL;
+ pmd_t *pmdp = NULL;
spinlock_t *ptl;
bool changed;
@@ -707,21 +707,42 @@ static void dax_mapping_entry_mkclean(struct address_space *mapping,
address = pgoff_address(index, vma);
changed = false;
- if (follow_pte(vma->vm_mm, address, &ptep, &ptl))
+ if (follow_pte_pmd(vma->vm_mm, address, &ptep, &pmdp, &ptl))
continue;
- if (pfn != pte_pfn(*ptep))
- goto unlock;
- if (!pte_dirty(*ptep) && !pte_write(*ptep))
- goto unlock;
- flush_cache_page(vma, address, pfn);
- pte = ptep_clear_flush(vma, address, ptep);
- pte = pte_wrprotect(pte);
- pte = pte_mkclean(pte);
- set_pte_at(vma->vm_mm, address, ptep, pte);
- changed = true;
-unlock:
- pte_unmap_unlock(ptep, ptl);
+ if (pmdp) {
+#ifdef CONFIG_FS_DAX_PMD
+ pmd_t pmd;
+
+ if (pfn != pmd_pfn(*pmdp))
+ goto unlock_pmd;
+ if (!pmd_dirty(*pmdp) && !pmd_write(*pmdp))
+ goto unlock_pmd;
+
+ flush_cache_page(vma, address, pfn);
+ pmd = pmdp_huge_clear_flush(vma, address, pmdp);
+ pmd = pmd_wrprotect(pmd);
+ pmd = pmd_mkclean(pmd);
+ set_pmd_at(vma->vm_mm, address, pmdp, pmd);
+ changed = true;
+unlock_pmd:
+ spin_unlock(ptl);
+#endif
+ } else {
+ if (pfn != pte_pfn(*ptep))
+ goto unlock_pte;
+ if (!pte_dirty(*ptep) && !pte_write(*ptep))
+ goto unlock_pte;
+
+ flush_cache_page(vma, address, pfn);
+ pte = ptep_clear_flush(vma, address, ptep);
+ pte = pte_wrprotect(pte);
+ pte = pte_mkclean(pte);
+ set_pte_at(vma->vm_mm, address, ptep, pte);
+ changed = true;
+unlock_pte:
+ pte_unmap_unlock(ptep, ptl);
+ }
if (changed)
mmu_notifier_invalidate_page(vma->vm_mm, address);
@@ -969,7 +990,6 @@ int __dax_zero_page_range(struct block_device *bdev, sector_t sector,
}
EXPORT_SYMBOL_GPL(__dax_zero_page_range);
-#ifdef CONFIG_FS_IOMAP
static sector_t dax_iomap_sector(struct iomap *iomap, loff_t pos)
{
return iomap->blkno + (((pos & PAGE_MASK) - iomap->offset) >> 9);
@@ -1011,6 +1031,11 @@ dax_iomap_actor(struct inode *inode, loff_t pos, loff_t length, void *data,
struct blk_dax_ctl dax = { 0 };
ssize_t map_len;
+ if (fatal_signal_pending(current)) {
+ ret = -EINTR;
+ break;
+ }
+
dax.sector = dax_iomap_sector(iomap, pos);
dax.size = (length + offset + PAGE_SIZE - 1) & PAGE_MASK;
map_len = dax_map_atomic(iomap->bdev, &dax);
@@ -1407,4 +1432,3 @@ int dax_iomap_pmd_fault(struct vm_area_struct *vma, unsigned long address,
}
EXPORT_SYMBOL_GPL(dax_iomap_pmd_fault);
#endif /* CONFIG_FS_DAX_PMD */
-#endif /* CONFIG_FS_IOMAP */
diff --git a/fs/dcache.c b/fs/dcache.c
index 769903dbc19d..95d71eda8142 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1336,8 +1336,11 @@ int d_set_mounted(struct dentry *dentry)
}
spin_lock(&dentry->d_lock);
if (!d_unlinked(dentry)) {
- dentry->d_flags |= DCACHE_MOUNTED;
- ret = 0;
+ ret = -EBUSY;
+ if (!d_mountpoint(dentry)) {
+ dentry->d_flags |= DCACHE_MOUNTED;
+ ret = 0;
+ }
}
spin_unlock(&dentry->d_lock);
out:
diff --git a/fs/direct-io.c b/fs/direct-io.c
index aeae8c063451..c87bae4376b8 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -906,6 +906,7 @@ static int do_direct_IO(struct dio *dio, struct dio_submit *sdio,
struct buffer_head *map_bh)
{
const unsigned blkbits = sdio->blkbits;
+ const unsigned i_blkbits = blkbits + sdio->blkfactor;
int ret = 0;
while (sdio->block_in_file < sdio->final_block_in_request) {
@@ -949,7 +950,7 @@ static int do_direct_IO(struct dio *dio, struct dio_submit *sdio,
clean_bdev_aliases(
map_bh->b_bdev,
map_bh->b_blocknr,
- map_bh->b_size >> blkbits);
+ map_bh->b_size >> i_blkbits);
}
if (!sdio->blkfactor)
diff --git a/fs/ext2/Kconfig b/fs/ext2/Kconfig
index 36bea5adcaba..c634874e12d9 100644
--- a/fs/ext2/Kconfig
+++ b/fs/ext2/Kconfig
@@ -1,6 +1,5 @@
config EXT2_FS
tristate "Second extended fs support"
- select FS_IOMAP if FS_DAX
help
Ext2 is a standard Linux file system for hard disks.
diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig
index 7b90691e98c4..e38039fd96ff 100644
--- a/fs/ext4/Kconfig
+++ b/fs/ext4/Kconfig
@@ -37,7 +37,6 @@ config EXT4_FS
select CRC16
select CRYPTO
select CRYPTO_CRC32C
- select FS_IOMAP if FS_DAX
help
This is the next generation of the ext3 filesystem.
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 0738f48293cc..0d8802453758 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -713,8 +713,8 @@ static int __f2fs_issue_discard_zone(struct f2fs_sb_info *sbi,
}
sector = SECTOR_FROM_BLOCK(blkstart);
- if (sector & (bdev_zone_size(bdev) - 1) ||
- nr_sects != bdev_zone_size(bdev)) {
+ if (sector & (bdev_zone_sectors(bdev) - 1) ||
+ nr_sects != bdev_zone_sectors(bdev)) {
f2fs_msg(sbi->sb, KERN_INFO,
"(%d) %s: Unaligned discard attempted (block %x + %x)",
devi, sbi->s_ndevs ? FDEV(devi).path: "",
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 702638e21c76..46fd30d8af77 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1553,16 +1553,16 @@ static int init_blkz_info(struct f2fs_sb_info *sbi, int devi)
return 0;
if (sbi->blocks_per_blkz && sbi->blocks_per_blkz !=
- SECTOR_TO_BLOCK(bdev_zone_size(bdev)))
+ SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)))
return -EINVAL;
- sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_size(bdev));
+ sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev));
if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz !=
__ilog2_u32(sbi->blocks_per_blkz))
return -EINVAL;
sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz);
FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >>
sbi->log_blocks_per_blkz;
- if (nr_sectors & (bdev_zone_size(bdev) - 1))
+ if (nr_sectors & (bdev_zone_sectors(bdev) - 1))
FDEV(devi).nr_blkz++;
FDEV(devi).blkz_type = kmalloc(FDEV(devi).nr_blkz, GFP_KERNEL);
diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
index 4304072161aa..40d61077bead 100644
--- a/fs/fscache/cookie.c
+++ b/fs/fscache/cookie.c
@@ -542,6 +542,7 @@ void __fscache_disable_cookie(struct fscache_cookie *cookie, bool invalidate)
hlist_for_each_entry(object, &cookie->backing_objects, cookie_link) {
if (invalidate)
set_bit(FSCACHE_OBJECT_RETIRED, &object->flags);
+ clear_bit(FSCACHE_OBJECT_PENDING_WRITE, &object->flags);
fscache_raise_event(object, FSCACHE_OBJECT_EV_KILL);
}
} else {
@@ -560,6 +561,10 @@ void __fscache_disable_cookie(struct fscache_cookie *cookie, bool invalidate)
wait_on_atomic_t(&cookie->n_active, fscache_wait_atomic_t,
TASK_UNINTERRUPTIBLE);
+ /* Make sure any pending writes are cancelled. */
+ if (cookie->def->type != FSCACHE_COOKIE_TYPE_INDEX)
+ fscache_invalidate_writes(cookie);
+
/* Reset the cookie state if it wasn't relinquished */
if (!test_bit(FSCACHE_COOKIE_RELINQUISHED, &cookie->flags)) {
atomic_inc(&cookie->n_active);
diff --git a/fs/fscache/netfs.c b/fs/fscache/netfs.c
index 9b28649df3a1..a8aa00be4444 100644
--- a/fs/fscache/netfs.c
+++ b/fs/fscache/netfs.c
@@ -48,6 +48,7 @@ int __fscache_register_netfs(struct fscache_netfs *netfs)
cookie->flags = 1 << FSCACHE_COOKIE_ENABLED;
spin_lock_init(&cookie->lock);
+ spin_lock_init(&cookie->stores_lock);
INIT_HLIST_HEAD(&cookie->backing_objects);
/* check the netfs type is not already present */
diff --git a/fs/fscache/object.c b/fs/fscache/object.c
index 9e792e30f4db..7a182c87f378 100644
--- a/fs/fscache/object.c
+++ b/fs/fscache/object.c
@@ -30,6 +30,7 @@ static const struct fscache_state *fscache_look_up_object(struct fscache_object
static const struct fscache_state *fscache_object_available(struct fscache_object *, int);
static const struct fscache_state *fscache_parent_ready(struct fscache_object *, int);
static const struct fscache_state *fscache_update_object(struct fscache_object *, int);
+static const struct fscache_state *fscache_object_dead(struct fscache_object *, int);
#define __STATE_NAME(n) fscache_osm_##n
#define STATE(n) (&__STATE_NAME(n))
@@ -91,7 +92,7 @@ static WORK_STATE(LOOKUP_FAILURE, "LCFL", fscache_lookup_failure);
static WORK_STATE(KILL_OBJECT, "KILL", fscache_kill_object);
static WORK_STATE(KILL_DEPENDENTS, "KDEP", fscache_kill_dependents);
static WORK_STATE(DROP_OBJECT, "DROP", fscache_drop_object);
-static WORK_STATE(OBJECT_DEAD, "DEAD", (void*)2UL);
+static WORK_STATE(OBJECT_DEAD, "DEAD", fscache_object_dead);
static WAIT_STATE(WAIT_FOR_INIT, "?INI",
TRANSIT_TO(INIT_OBJECT, 1 << FSCACHE_OBJECT_EV_NEW_CHILD));
@@ -229,6 +230,10 @@ execute_work_state:
event = -1;
if (new_state == NO_TRANSIT) {
_debug("{OBJ%x} %s notrans", object->debug_id, state->name);
+ if (unlikely(state == STATE(OBJECT_DEAD))) {
+ _leave(" [dead]");
+ return;
+ }
fscache_enqueue_object(object);
event_mask = object->oob_event_mask;
goto unmask_events;
@@ -239,7 +244,7 @@ execute_work_state:
object->state = state = new_state;
if (state->work) {
- if (unlikely(state->work == ((void *)2UL))) {
+ if (unlikely(state == STATE(OBJECT_DEAD))) {
_leave(" [dead]");
return;
}
@@ -645,6 +650,12 @@ static const struct fscache_state *fscache_kill_object(struct fscache_object *ob
fscache_mark_object_dead(object);
object->oob_event_mask = 0;
+ if (test_bit(FSCACHE_OBJECT_RETIRED, &object->flags)) {
+ /* Reject any new read/write ops and abort any that are pending. */
+ clear_bit(FSCACHE_OBJECT_PENDING_WRITE, &object->flags);
+ fscache_cancel_all_ops(object);
+ }
+
if (list_empty(&object->dependents) &&
object->n_ops == 0 &&
object->n_children == 0)
@@ -1077,3 +1088,20 @@ void fscache_object_mark_killed(struct fscache_object *object,
}
}
EXPORT_SYMBOL(fscache_object_mark_killed);
+
+/*
+ * The object is dead. We can get here if an object gets queued by an event
+ * that would lead to its death (such as EV_KILL) when the dispatcher is
+ * already running (and so can be requeued) but hasn't yet cleared the event
+ * mask.
+ */
+static const struct fscache_state *fscache_object_dead(struct fscache_object *object,
+ int event)
+{
+ if (!test_and_set_bit(FSCACHE_OBJECT_RUN_AFTER_DEAD,
+ &object->flags))
+ return NO_TRANSIT;
+
+ WARN(true, "FS-Cache object redispatched after death");
+ return NO_TRANSIT;
+}
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 70ea57c7b6bb..4e06a27ed7f8 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -2025,7 +2025,6 @@ static void end_requests(struct fuse_conn *fc, struct list_head *head)
struct fuse_req *req;
req = list_entry(head->next, struct fuse_req, list);
req->out.h.error = -ECONNABORTED;
- clear_bit(FR_PENDING, &req->flags);
clear_bit(FR_SENT, &req->flags);
list_del_init(&req->list);
request_end(fc, req);
@@ -2103,6 +2102,8 @@ void fuse_abort_conn(struct fuse_conn *fc)
spin_lock(&fiq->waitq.lock);
fiq->connected = 0;
list_splice_init(&fiq->pending, &to_end2);
+ list_for_each_entry(req, &to_end2, list)
+ clear_bit(FR_PENDING, &req->flags);
while (forget_pending(fiq))
kfree(dequeue_forget(fiq, 1, NULL));
wake_up_all_locked(&fiq->waitq);
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 1f7c732f32b0..811fd8929a18 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -68,7 +68,7 @@ static u64 time_to_jiffies(u64 sec, u32 nsec)
if (sec || nsec) {
struct timespec64 ts = {
sec,
- max_t(u32, nsec, NSEC_PER_SEC - 1)
+ min_t(u32, nsec, NSEC_PER_SEC - 1)
};
return get_jiffies_64() + timespec64_to_jiffies(&ts);
diff --git a/fs/iomap.c b/fs/iomap.c
index 354a123f170e..a51cb4c07d4d 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -114,6 +114,9 @@ iomap_write_begin(struct inode *inode, loff_t pos, unsigned len, unsigned flags,
BUG_ON(pos + len > iomap->offset + iomap->length);
+ if (fatal_signal_pending(current))
+ return -EINTR;
+
page = grab_cache_page_write_begin(inode->i_mapping, index, flags);
if (!page)
return -ENOMEM;
diff --git a/fs/libfs.c b/fs/libfs.c
index e973cd51f126..28d6f35feed6 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -245,7 +245,8 @@ struct dentry *mount_pseudo_xattr(struct file_system_type *fs_type, char *name,
struct inode *root;
struct qstr d_name = QSTR_INIT(name, strlen(name));
- s = sget(fs_type, NULL, set_anon_super, MS_NOUSER, NULL);
+ s = sget_userns(fs_type, NULL, set_anon_super, MS_KERNMOUNT|MS_NOUSER,
+ &init_user_ns, NULL);
if (IS_ERR(s))
return ERR_CAST(s);
diff --git a/fs/namespace.c b/fs/namespace.c
index b5b1259e064f..487ba30bb5c6 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -742,26 +742,50 @@ static struct mountpoint *lookup_mountpoint(struct dentry *dentry)
return NULL;
}
-static struct mountpoint *new_mountpoint(struct dentry *dentry)
+static struct mountpoint *get_mountpoint(struct dentry *dentry)
{
- struct hlist_head *chain = mp_hash(dentry);
- struct mountpoint *mp;
+ struct mountpoint *mp, *new = NULL;
int ret;
- mp = kmalloc(sizeof(struct mountpoint), GFP_KERNEL);
- if (!mp)
+ if (d_mountpoint(dentry)) {
+mountpoint:
+ read_seqlock_excl(&mount_lock);
+ mp = lookup_mountpoint(dentry);
+ read_sequnlock_excl(&mount_lock);
+ if (mp)
+ goto done;
+ }
+
+ if (!new)
+ new = kmalloc(sizeof(struct mountpoint), GFP_KERNEL);
+ if (!new)
return ERR_PTR(-ENOMEM);
+
+ /* Exactly one processes may set d_mounted */
ret = d_set_mounted(dentry);
- if (ret) {
- kfree(mp);
- return ERR_PTR(ret);
- }
- mp->m_dentry = dentry;
- mp->m_count = 1;
- hlist_add_head(&mp->m_hash, chain);
- INIT_HLIST_HEAD(&mp->m_list);
+ /* Someone else set d_mounted? */
+ if (ret == -EBUSY)
+ goto mountpoint;
+
+ /* The dentry is not available as a mountpoint? */
+ mp = ERR_PTR(ret);
+ if (ret)
+ goto done;
+
+ /* Add the new mountpoint to the hash table */
+ read_seqlock_excl(&mount_lock);
+ new->m_dentry = dentry;
+ new->m_count = 1;
+ hlist_add_head(&new->m_hash, mp_hash(dentry));
+ INIT_HLIST_HEAD(&new->m_list);
+ read_sequnlock_excl(&mount_lock);
+
+ mp = new;
+ new = NULL;
+done:
+ kfree(new);
return mp;
}
@@ -1595,11 +1619,11 @@ void __detach_mounts(struct dentry *dentry)
struct mount *mnt;
namespace_lock();
+ lock_mount_hash();
mp = lookup_mountpoint(dentry);
if (IS_ERR_OR_NULL(mp))
goto out_unlock;
- lock_mount_hash();
event++;
while (!hlist_empty(&mp->m_list)) {
mnt = hlist_entry(mp->m_list.first, struct mount, mnt_mp_list);
@@ -1609,9 +1633,9 @@ void __detach_mounts(struct dentry *dentry)
}
else umount_tree(mnt, UMOUNT_CONNECTED);
}
- unlock_mount_hash();
put_mountpoint(mp);
out_unlock:
+ unlock_mount_hash();
namespace_unlock();
}
@@ -2038,9 +2062,7 @@ retry:
namespace_lock();
mnt = lookup_mnt(path);
if (likely(!mnt)) {
- struct mountpoint *mp = lookup_mountpoint(dentry);
- if (!mp)
- mp = new_mountpoint(dentry);
+ struct mountpoint *mp = get_mountpoint(dentry);
if (IS_ERR(mp)) {
namespace_unlock();
inode_unlock(dentry->d_inode);
@@ -2059,7 +2081,11 @@ retry:
static void unlock_mount(struct mountpoint *where)
{
struct dentry *dentry = where->m_dentry;
+
+ read_seqlock_excl(&mount_lock);
put_mountpoint(where);
+ read_sequnlock_excl(&mount_lock);
+
namespace_unlock();
inode_unlock(dentry->d_inode);
}
@@ -3135,9 +3161,9 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
touch_mnt_namespace(current->nsproxy->mnt_ns);
/* A moved mount should not expire automatically */
list_del_init(&new_mnt->mnt_expire);
+ put_mountpoint(root_mp);
unlock_mount_hash();
chroot_fs_refs(&root, &new);
- put_mountpoint(root_mp);
error = 0;
out4:
unlock_mount(old_mp);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 6dcbc5defb7a..0a0eaecf9676 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -38,7 +38,6 @@
#include <linux/mm.h>
#include <linux/delay.h>
#include <linux/errno.h>
-#include <linux/file.h>
#include <linux/string.h>
#include <linux/ratelimit.h>
#include <linux/printk.h>
@@ -1083,7 +1082,8 @@ int nfs4_call_sync(struct rpc_clnt *clnt,
return nfs4_call_sync_sequence(clnt, server, msg, args, res);
}
-static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo)
+static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo,
+ unsigned long timestamp)
{
struct nfs_inode *nfsi = NFS_I(dir);
@@ -1099,6 +1099,7 @@ static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo)
NFS_INO_INVALID_ACL;
}
dir->i_version = cinfo->after;
+ nfsi->read_cache_jiffies = timestamp;
nfsi->attr_gencount = nfs_inc_attr_generation_counter();
nfs_fscache_invalidate(dir);
spin_unlock(&dir->i_lock);
@@ -2391,11 +2392,13 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
nfs_fattr_map_and_free_names(server, &data->f_attr);
if (o_arg->open_flags & O_CREAT) {
- update_changeattr(dir, &o_res->cinfo);
if (o_arg->open_flags & O_EXCL)
data->file_created = 1;
else if (o_res->cinfo.before != o_res->cinfo.after)
data->file_created = 1;
+ if (data->file_created || dir->i_version != o_res->cinfo.after)
+ update_changeattr(dir, &o_res->cinfo,
+ o_res->f_attr->time_start);
}
if ((o_res->rflags & NFS4_OPEN_RESULT_LOCKTYPE_POSIX) == 0)
server->caps &= ~NFS_CAP_POSIX_LOCK;
@@ -2697,7 +2700,8 @@ static inline void nfs4_exclusive_attrset(struct nfs4_opendata *opendata,
sattr->ia_valid |= ATTR_MTIME;
/* Except MODE, it seems harmless of setting twice. */
- if ((attrset[1] & FATTR4_WORD1_MODE))
+ if (opendata->o_arg.createmode != NFS4_CREATE_EXCLUSIVE &&
+ attrset[1] & FATTR4_WORD1_MODE)
sattr->ia_valid &= ~ATTR_MODE;
if (attrset[2] & FATTR4_WORD2_SECURITY_LABEL)
@@ -4073,11 +4077,12 @@ static int _nfs4_proc_remove(struct inode *dir, const struct qstr *name)
.rpc_argp = &args,
.rpc_resp = &res,
};
+ unsigned long timestamp = jiffies;
int status;
status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 1);
if (status == 0)
- update_changeattr(dir, &res.cinfo);
+ update_changeattr(dir, &res.cinfo, timestamp);
return status;
}
@@ -4125,7 +4130,8 @@ static int nfs4_proc_unlink_done(struct rpc_task *task, struct inode *dir)
if (nfs4_async_handle_error(task, res->server, NULL,
&data->timeout) == -EAGAIN)
return 0;
- update_changeattr(dir, &res->cinfo);
+ if (task->tk_status == 0)
+ update_changeattr(dir, &res->cinfo, res->dir_attr->time_start);
return 1;
}
@@ -4159,8 +4165,11 @@ static int nfs4_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
if (nfs4_async_handle_error(task, res->server, NULL, &data->timeout) == -EAGAIN)
return 0;
- update_changeattr(old_dir, &res->old_cinfo);
- update_changeattr(new_dir, &res->new_cinfo);
+ if (task->tk_status == 0) {
+ update_changeattr(old_dir, &res->old_cinfo, res->old_fattr->time_start);
+ if (new_dir != old_dir)
+ update_changeattr(new_dir, &res->new_cinfo, res->new_fattr->time_start);
+ }
return 1;
}
@@ -4197,7 +4206,7 @@ static int _nfs4_proc_link(struct inode *inode, struct inode *dir, const struct
status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1);
if (!status) {
- update_changeattr(dir, &res.cinfo);
+ update_changeattr(dir, &res.cinfo, res.fattr->time_start);
status = nfs_post_op_update_inode(inode, res.fattr);
if (!status)
nfs_setsecurity(inode, res.fattr, res.label);
@@ -4272,7 +4281,8 @@ static int nfs4_do_create(struct inode *dir, struct dentry *dentry, struct nfs4_
int status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &data->msg,
&data->arg.seq_args, &data->res.seq_res, 1);
if (status == 0) {
- update_changeattr(dir, &data->res.dir_cinfo);
+ update_changeattr(dir, &data->res.dir_cinfo,
+ data->res.fattr->time_start);
status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, data->res.label);
}
return status;
@@ -6127,7 +6137,6 @@ static struct nfs4_lockdata *nfs4_alloc_lockdata(struct file_lock *fl,
p->server = server;
atomic_inc(&lsp->ls_count);
p->ctx = get_nfs_open_context(ctx);
- get_file(fl->fl_file);
memcpy(&p->fl, fl, sizeof(p->fl));
return p;
out_free_seqid:
@@ -6240,7 +6249,6 @@ static void nfs4_lock_release(void *calldata)
nfs_free_seqid(data->arg.lock_seqid);
nfs4_put_lock_state(data->lsp);
put_nfs_open_context(data->ctx);
- fput(data->fl.fl_file);
kfree(data);
dprintk("%s: done!\n", __func__);
}
@@ -8483,6 +8491,7 @@ nfs4_layoutget_handle_exception(struct rpc_task *task,
goto out;
}
+ nfs4_sequence_free_slot(&lgp->res.seq_res);
err = nfs4_handle_exception(server, nfs4err, exception);
if (!status) {
if (exception->retry)
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 1d152f4470cd..daeb94e3acd4 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1091,6 +1091,7 @@ static void nfs_increment_seqid(int status, struct nfs_seqid *seqid)
case -NFS4ERR_BADXDR:
case -NFS4ERR_RESOURCE:
case -NFS4ERR_NOFILEHANDLE:
+ case -NFS4ERR_MOVED:
/* Non-seqid mutating errors */
return;
};
@@ -1729,7 +1730,6 @@ static int nfs4_recovery_handle_error(struct nfs_client *clp, int error)
break;
case -NFS4ERR_STALE_CLIENTID:
set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
- nfs4_state_clear_reclaim_reboot(clp);
nfs4_state_start_reclaim_reboot(clp);
break;
case -NFS4ERR_EXPIRED:
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 59554f3adf29..dd042498ce7c 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1200,10 +1200,10 @@ _pnfs_return_layout(struct inode *ino)
send = pnfs_prepare_layoutreturn(lo, &stateid, NULL);
spin_unlock(&ino->i_lock);
- pnfs_free_lseg_list(&tmp_list);
if (send)
status = pnfs_send_layoutreturn(lo, &stateid, IOMODE_ANY, true);
out_put_layout_hdr:
+ pnfs_free_lseg_list(&tmp_list);
pnfs_put_layout_hdr(lo);
out:
dprintk("<-- %s status: %d\n", __func__, status);
diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c
index 596205d939a1..1fc07a9c70e9 100644
--- a/fs/nfsd/nfs4layouts.c
+++ b/fs/nfsd/nfs4layouts.c
@@ -223,10 +223,11 @@ nfsd4_alloc_layout_stateid(struct nfsd4_compound_state *cstate,
struct nfs4_layout_stateid *ls;
struct nfs4_stid *stp;
- stp = nfs4_alloc_stid(cstate->clp, nfs4_layout_stateid_cache);
+ stp = nfs4_alloc_stid(cstate->clp, nfs4_layout_stateid_cache,
+ nfsd4_free_layout_stateid);
if (!stp)
return NULL;
- stp->sc_free = nfsd4_free_layout_stateid;
+
get_nfs4_file(fp);
stp->sc_file = fp;
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 4b4beaaa4eaa..a0dee8ae9f97 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -633,8 +633,8 @@ out:
return co;
}
-struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl,
- struct kmem_cache *slab)
+struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl, struct kmem_cache *slab,
+ void (*sc_free)(struct nfs4_stid *))
{
struct nfs4_stid *stid;
int new_id;
@@ -650,6 +650,8 @@ struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl,
idr_preload_end();
if (new_id < 0)
goto out_free;
+
+ stid->sc_free = sc_free;
stid->sc_client = cl;
stid->sc_stateid.si_opaque.so_id = new_id;
stid->sc_stateid.si_opaque.so_clid = cl->cl_clientid;
@@ -675,15 +677,12 @@ out_free:
static struct nfs4_ol_stateid * nfs4_alloc_open_stateid(struct nfs4_client *clp)
{
struct nfs4_stid *stid;
- struct nfs4_ol_stateid *stp;
- stid = nfs4_alloc_stid(clp, stateid_slab);
+ stid = nfs4_alloc_stid(clp, stateid_slab, nfs4_free_ol_stateid);
if (!stid)
return NULL;
- stp = openlockstateid(stid);
- stp->st_stid.sc_free = nfs4_free_ol_stateid;
- return stp;
+ return openlockstateid(stid);
}
static void nfs4_free_deleg(struct nfs4_stid *stid)
@@ -781,11 +780,10 @@ alloc_init_deleg(struct nfs4_client *clp, struct svc_fh *current_fh,
goto out_dec;
if (delegation_blocked(&current_fh->fh_handle))
goto out_dec;
- dp = delegstateid(nfs4_alloc_stid(clp, deleg_slab));
+ dp = delegstateid(nfs4_alloc_stid(clp, deleg_slab, nfs4_free_deleg));
if (dp == NULL)
goto out_dec;
- dp->dl_stid.sc_free = nfs4_free_deleg;
/*
* delegation seqid's are never incremented. The 4.1 special
* meaning of seqid 0 isn't meaningful, really, but let's avoid
@@ -5580,7 +5578,6 @@ init_lock_stateid(struct nfs4_ol_stateid *stp, struct nfs4_lockowner *lo,
stp->st_stateowner = nfs4_get_stateowner(&lo->lo_owner);
get_nfs4_file(fp);
stp->st_stid.sc_file = fp;
- stp->st_stid.sc_free = nfs4_free_lock_stateid;
stp->st_access_bmap = 0;
stp->st_deny_bmap = open_stp->st_deny_bmap;
stp->st_openstp = open_stp;
@@ -5623,7 +5620,7 @@ find_or_create_lock_stateid(struct nfs4_lockowner *lo, struct nfs4_file *fi,
lst = find_lock_stateid(lo, fi);
if (lst == NULL) {
spin_unlock(&clp->cl_lock);
- ns = nfs4_alloc_stid(clp, stateid_slab);
+ ns = nfs4_alloc_stid(clp, stateid_slab, nfs4_free_lock_stateid);
if (ns == NULL)
return NULL;
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 7ecf16be4a44..8fae53ce21d1 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2440,7 +2440,9 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
p++; /* to be backfilled later */
if (bmval0 & FATTR4_WORD0_SUPPORTED_ATTRS) {
- u32 *supp = nfsd_suppattrs[minorversion];
+ u32 supp[3];
+
+ memcpy(supp, nfsd_suppattrs[minorversion], sizeof(supp));
if (!IS_POSIXACL(dentry->d_inode))
supp[0] &= ~FATTR4_WORD0_ACL;
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index c9399366f9df..4516e8b7d776 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -603,8 +603,8 @@ extern __be32 nfs4_preprocess_stateid_op(struct svc_rqst *rqstp,
__be32 nfsd4_lookup_stateid(struct nfsd4_compound_state *cstate,
stateid_t *stateid, unsigned char typemask,
struct nfs4_stid **s, struct nfsd_net *nn);
-struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl,
- struct kmem_cache *slab);
+struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl, struct kmem_cache *slab,
+ void (*sc_free)(struct nfs4_stid *));
void nfs4_unhash_stid(struct nfs4_stid *s);
void nfs4_put_stid(struct nfs4_stid *s);
void nfs4_inc_and_copy_stateid(stateid_t *dst, struct nfs4_stid *stid);
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 26c6fdb4bf67..ca13236dbb1f 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -332,37 +332,6 @@ nfsd_sanitize_attrs(struct inode *inode, struct iattr *iap)
}
}
-static __be32
-nfsd_get_write_access(struct svc_rqst *rqstp, struct svc_fh *fhp,
- struct iattr *iap)
-{
- struct inode *inode = d_inode(fhp->fh_dentry);
- int host_err;
-
- if (iap->ia_size < inode->i_size) {
- __be32 err;
-
- err = nfsd_permission(rqstp, fhp->fh_export, fhp->fh_dentry,
- NFSD_MAY_TRUNC | NFSD_MAY_OWNER_OVERRIDE);
- if (err)
- return err;
- }
-
- host_err = get_write_access(inode);
- if (host_err)
- goto out_nfserrno;
-
- host_err = locks_verify_truncate(inode, NULL, iap->ia_size);
- if (host_err)
- goto out_put_write_access;
- return 0;
-
-out_put_write_access:
- put_write_access(inode);
-out_nfserrno:
- return nfserrno(host_err);
-}
-
/*
* Set various file attributes. After this call fhp needs an fh_put.
*/
@@ -377,7 +346,6 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
__be32 err;
int host_err;
bool get_write_count;
- int size_change = 0;
if (iap->ia_valid & (ATTR_ATIME | ATTR_MTIME | ATTR_SIZE))
accmode |= NFSD_MAY_WRITE|NFSD_MAY_OWNER_OVERRIDE;
@@ -390,11 +358,11 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
/* Get inode */
err = fh_verify(rqstp, fhp, ftype, accmode);
if (err)
- goto out;
+ return err;
if (get_write_count) {
host_err = fh_want_write(fhp);
if (host_err)
- return nfserrno(host_err);
+ goto out_host_err;
}
dentry = fhp->fh_dentry;
@@ -405,50 +373,59 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
iap->ia_valid &= ~ATTR_MODE;
if (!iap->ia_valid)
- goto out;
+ return 0;
nfsd_sanitize_attrs(inode, iap);
+ if (check_guard && guardtime != inode->i_ctime.tv_sec)
+ return nfserr_notsync;
+
/*
* The size case is special, it changes the file in addition to the
- * attributes.
+ * attributes, and file systems don't expect it to be mixed with
+ * "random" attribute changes. We thus split out the size change
+ * into a separate call for vfs_truncate, and do the rest as a
+ * a separate setattr call.
*/
if (iap->ia_valid & ATTR_SIZE) {
- err = nfsd_get_write_access(rqstp, fhp, iap);
- if (err)
- goto out;
- size_change = 1;
+ struct path path = {
+ .mnt = fhp->fh_export->ex_path.mnt,
+ .dentry = dentry,
+ };
+ bool implicit_mtime = false;
/*
- * RFC5661, Section 18.30.4:
- * Changing the size of a file with SETATTR indirectly
- * changes the time_modify and change attributes.
- *
- * (and similar for the older RFCs)
+ * vfs_truncate implicity updates the mtime IFF the file size
+ * actually changes. Avoid the additional seattr call below if
+ * the only other attribute that the client sends is the mtime.
*/
- if (iap->ia_size != i_size_read(inode))
- iap->ia_valid |= ATTR_MTIME;
- }
+ if (iap->ia_size != i_size_read(inode) &&
+ ((iap->ia_valid & ~(ATTR_SIZE | ATTR_MTIME)) == 0))
+ implicit_mtime = true;
- iap->ia_valid |= ATTR_CTIME;
+ host_err = vfs_truncate(&path, iap->ia_size);
+ if (host_err)
+ goto out_host_err;
- if (check_guard && guardtime != inode->i_ctime.tv_sec) {
- err = nfserr_notsync;
- goto out_put_write_access;
+ iap->ia_valid &= ~ATTR_SIZE;
+ if (implicit_mtime)
+ iap->ia_valid &= ~ATTR_MTIME;
+ if (!iap->ia_valid)
+ goto done;
}
+ iap->ia_valid |= ATTR_CTIME;
+
fh_lock(fhp);
host_err = notify_change(dentry, iap, NULL);
fh_unlock(fhp);
- err = nfserrno(host_err);
+ if (host_err)
+ goto out_host_err;
-out_put_write_access:
- if (size_change)
- put_write_access(inode);
- if (!err)
- err = nfserrno(commit_metadata(fhp));
-out:
- return err;
+done:
+ host_err = commit_metadata(fhp);
+out_host_err:
+ return nfserrno(host_err);
}
#if defined(CONFIG_NFSD_V4)
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 83d576f6a287..77d1632e905d 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -3303,6 +3303,16 @@ static int ocfs2_downconvert_lock(struct ocfs2_super *osb,
mlog(ML_BASTS, "lockres %s, level %d => %d\n", lockres->l_name,
lockres->l_level, new_level);
+ /*
+ * On DLM_LKF_VALBLK, fsdlm behaves differently with o2cb. It always
+ * expects DLM_LKF_VALBLK being set if the LKB has LVB, so that
+ * we can recover correctly from node failure. Otherwise, we may get
+ * invalid LVB in LKB, but without DLM_SBF_VALNOTVALID being set.
+ */
+ if (!ocfs2_is_o2cb_active() &&
+ lockres->l_ops->flags & LOCK_TYPE_USES_LVB)
+ lvb = 1;
+
if (lvb)
dlm_flags |= DLM_LKF_VALBLK;
diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c
index 52c07346bea3..820359096c7a 100644
--- a/fs/ocfs2/stackglue.c
+++ b/fs/ocfs2/stackglue.c
@@ -48,6 +48,12 @@ static char ocfs2_hb_ctl_path[OCFS2_MAX_HB_CTL_PATH] = "/sbin/ocfs2_hb_ctl";
*/
static struct ocfs2_stack_plugin *active_stack;
+inline int ocfs2_is_o2cb_active(void)
+{
+ return !strcmp(active_stack->sp_name, OCFS2_STACK_PLUGIN_O2CB);
+}
+EXPORT_SYMBOL_GPL(ocfs2_is_o2cb_active);
+
static struct ocfs2_stack_plugin *ocfs2_stack_lookup(const char *name)
{
struct ocfs2_stack_plugin *p;
diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h
index f2dce10fae54..e3036e1790e8 100644
--- a/fs/ocfs2/stackglue.h
+++ b/fs/ocfs2/stackglue.h
@@ -298,6 +298,9 @@ void ocfs2_stack_glue_set_max_proto_version(struct ocfs2_protocol_version *max_p
int ocfs2_stack_glue_register(struct ocfs2_stack_plugin *plugin);
void ocfs2_stack_glue_unregister(struct ocfs2_stack_plugin *plugin);
+/* In ocfs2_downconvert_lock(), we need to know which stack we are using */
+int ocfs2_is_o2cb_active(void);
+
extern struct kset *ocfs2_kset;
#endif /* STACKGLUE_H */
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c
index 9ad48d9202a9..023bb0b03352 100644
--- a/fs/overlayfs/namei.c
+++ b/fs/overlayfs/namei.c
@@ -154,29 +154,38 @@ out_err:
static int ovl_lookup_layer(struct dentry *base, struct ovl_lookup_data *d,
struct dentry **ret)
{
- const char *s = d->name.name;
+ /* Counting down from the end, since the prefix can change */
+ size_t rem = d->name.len - 1;
struct dentry *dentry = NULL;
int err;
- if (*s != '/')
+ if (d->name.name[0] != '/')
return ovl_lookup_single(base, d, d->name.name, d->name.len,
0, "", ret);
- while (*s++ == '/' && !IS_ERR_OR_NULL(base) && d_can_lookup(base)) {
+ while (!IS_ERR_OR_NULL(base) && d_can_lookup(base)) {
+ const char *s = d->name.name + d->name.len - rem;
const char *next = strchrnul(s, '/');
- size_t slen = strlen(s);
+ size_t thislen = next - s;
+ bool end = !next[0];
- if (WARN_ON(slen > d->name.len) ||
- WARN_ON(strcmp(d->name.name + d->name.len - slen, s)))
+ /* Verify we did not go off the rails */
+ if (WARN_ON(s[-1] != '/'))
return -EIO;
- err = ovl_lookup_single(base, d, s, next - s,
- d->name.len - slen, next, &base);
+ err = ovl_lookup_single(base, d, s, thislen,
+ d->name.len - rem, next, &base);
dput(dentry);
if (err)
return err;
dentry = base;
- s = next;
+ if (end)
+ break;
+
+ rem -= thislen + 1;
+
+ if (WARN_ON(rem >= d->name.len))
+ return -EIO;
}
*ret = dentry;
return 0;
diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index 595522022aca..c9d48dc78495 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -922,11 +922,10 @@ int simple_set_acl(struct inode *inode, struct posix_acl *acl, int type)
int error;
if (type == ACL_TYPE_ACCESS) {
- error = posix_acl_equiv_mode(acl, &inode->i_mode);
- if (error < 0)
- return 0;
- if (error == 0)
- acl = NULL;
+ error = posix_acl_update_mode(inode,
+ &inode->i_mode, &acl);
+ if (error)
+ return error;
}
inode->i_ctime = current_time(inode);
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 8e7e61b28f31..87c9a9aacda3 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -3179,6 +3179,8 @@ int proc_pid_readdir(struct file *file, struct dir_context *ctx)
iter.tgid += 1, iter = next_tgid(ns, iter)) {
char name[PROC_NUMBUF];
int len;
+
+ cond_resched();
if (!has_pid_permissions(ns, iter.task, 2))
continue;
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 55313d994895..d4e37acd4821 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -709,7 +709,7 @@ static int proc_sys_readdir(struct file *file, struct dir_context *ctx)
ctl_dir = container_of(head, struct ctl_dir, header);
if (!dir_emit_dots(file, ctx))
- return 0;
+ goto out;
pos = 2;
@@ -719,6 +719,7 @@ static int proc_sys_readdir(struct file *file, struct dir_context *ctx)
break;
}
}
+out:
sysctl_head_finish(head);
return 0;
}
diff --git a/fs/romfs/super.c b/fs/romfs/super.c
index d0f8a38dfafa..0186fe6d39f3 100644
--- a/fs/romfs/super.c
+++ b/fs/romfs/super.c
@@ -74,6 +74,7 @@
#include <linux/highmem.h>
#include <linux/pagemap.h>
#include <linux/uaccess.h>
+#include <linux/major.h>
#include "internal.h"
static struct kmem_cache *romfs_inode_cachep;
@@ -416,7 +417,22 @@ static void romfs_destroy_inode(struct inode *inode)
static int romfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct super_block *sb = dentry->d_sb;
- u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
+ u64 id = 0;
+
+ /* When calling huge_encode_dev(),
+ * use sb->s_bdev->bd_dev when,
+ * - CONFIG_ROMFS_ON_BLOCK defined
+ * use sb->s_dev when,
+ * - CONFIG_ROMFS_ON_BLOCK undefined and
+ * - CONFIG_ROMFS_ON_MTD defined
+ * leave id as 0 when,
+ * - CONFIG_ROMFS_ON_BLOCK undefined and
+ * - CONFIG_ROMFS_ON_MTD undefined
+ */
+ if (sb->s_bdev)
+ id = huge_encode_dev(sb->s_bdev->bd_dev);
+ else if (sb->s_dev)
+ id = huge_encode_dev(sb->s_dev);
buf->f_type = ROMFS_MAGIC;
buf->f_namelen = ROMFS_MAXFN;
@@ -489,6 +505,11 @@ static int romfs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_flags |= MS_RDONLY | MS_NOATIME;
sb->s_op = &romfs_super_ops;
+#ifdef CONFIG_ROMFS_ON_MTD
+ /* Use same dev ID from the underlying mtdblock device */
+ if (sb->s_mtd)
+ sb->s_dev = MKDEV(MTD_BLOCK_MAJOR, sb->s_mtd->index);
+#endif
/* read the image superblock and check it */
rsb = kmalloc(512, GFP_KERNEL);
if (!rsb)
diff --git a/fs/ubifs/Kconfig b/fs/ubifs/Kconfig
index 0a908ae7af13..b0d0623c83ed 100644
--- a/fs/ubifs/Kconfig
+++ b/fs/ubifs/Kconfig
@@ -53,7 +53,7 @@ config UBIFS_ATIME_SUPPORT
config UBIFS_FS_ENCRYPTION
bool "UBIFS Encryption"
- depends on UBIFS_FS
+ depends on UBIFS_FS && BLOCK
select FS_ENCRYPTION
default n
help
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 1c5331ac9614..528369f3e472 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -390,16 +390,6 @@ static int do_tmpfile(struct inode *dir, struct dentry *dentry,
dbg_gen("dent '%pd', mode %#hx in dir ino %lu",
dentry, mode, dir->i_ino);
- if (ubifs_crypt_is_encrypted(dir)) {
- err = fscrypt_get_encryption_info(dir);
- if (err)
- return err;
-
- if (!fscrypt_has_encryption_key(dir)) {
- return -EPERM;
- }
- }
-
err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);
if (err)
return err;
@@ -741,17 +731,9 @@ static int ubifs_link(struct dentry *old_dentry, struct inode *dir,
ubifs_assert(inode_is_locked(dir));
ubifs_assert(inode_is_locked(inode));
- if (ubifs_crypt_is_encrypted(dir)) {
- if (!fscrypt_has_permitted_context(dir, inode))
- return -EPERM;
-
- err = fscrypt_get_encryption_info(inode);
- if (err)
- return err;
-
- if (!fscrypt_has_encryption_key(inode))
- return -EPERM;
- }
+ if (ubifs_crypt_is_encrypted(dir) &&
+ !fscrypt_has_permitted_context(dir, inode))
+ return -EPERM;
err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);
if (err)
@@ -1000,17 +982,6 @@ static int ubifs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
if (err)
return err;
- if (ubifs_crypt_is_encrypted(dir)) {
- err = fscrypt_get_encryption_info(dir);
- if (err)
- goto out_budg;
-
- if (!fscrypt_has_encryption_key(dir)) {
- err = -EPERM;
- goto out_budg;
- }
- }
-
err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);
if (err)
goto out_budg;
@@ -1096,17 +1067,6 @@ static int ubifs_mknod(struct inode *dir, struct dentry *dentry,
return err;
}
- if (ubifs_crypt_is_encrypted(dir)) {
- err = fscrypt_get_encryption_info(dir);
- if (err)
- goto out_budg;
-
- if (!fscrypt_has_encryption_key(dir)) {
- err = -EPERM;
- goto out_budg;
- }
- }
-
err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);
if (err)
goto out_budg;
@@ -1231,18 +1191,6 @@ static int ubifs_symlink(struct inode *dir, struct dentry *dentry,
goto out_inode;
}
- err = fscrypt_get_encryption_info(inode);
- if (err) {
- kfree(sd);
- goto out_inode;
- }
-
- if (!fscrypt_has_encryption_key(inode)) {
- kfree(sd);
- err = -EPERM;
- goto out_inode;
- }
-
ostr.name = sd->encrypted_path;
ostr.len = disk_link.len;
diff --git a/fs/ubifs/ioctl.c b/fs/ubifs/ioctl.c
index 78d713644df3..da519ba205f6 100644
--- a/fs/ubifs/ioctl.c
+++ b/fs/ubifs/ioctl.c
@@ -217,6 +217,9 @@ long ubifs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case FS_IOC32_SETFLAGS:
cmd = FS_IOC_SETFLAGS;
break;
+ case FS_IOC_SET_ENCRYPTION_POLICY:
+ case FS_IOC_GET_ENCRYPTION_POLICY:
+ break;
default:
return -ENOIOCTLCMD;
}
diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index a459211a1c21..294519b98874 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -744,6 +744,7 @@ int ubifs_jnl_write_data(struct ubifs_info *c, const struct inode *inode,
} else {
data->compr_size = 0;
+ out_len = compr_len;
}
dlen = UBIFS_DATA_NODE_SZ + out_len;
@@ -1319,6 +1320,7 @@ static int truncate_data_node(const struct ubifs_info *c, const struct inode *in
dn->compr_type = cpu_to_le16(compr_type);
dn->size = cpu_to_le32(*new_len);
*new_len = UBIFS_DATA_NODE_SZ + out_len;
+ err = 0;
out:
kfree(buf);
return err;
diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c
index 74ae2de949df..709aa098dd46 100644
--- a/fs/ubifs/tnc.c
+++ b/fs/ubifs/tnc.c
@@ -34,6 +34,11 @@
#include <linux/slab.h>
#include "ubifs.h"
+static int try_read_node(const struct ubifs_info *c, void *buf, int type,
+ int len, int lnum, int offs);
+static int fallible_read_node(struct ubifs_info *c, const union ubifs_key *key,
+ struct ubifs_zbranch *zbr, void *node);
+
/*
* Returned codes of 'matches_name()' and 'fallible_matches_name()' functions.
* @NAME_LESS: name corresponding to the first argument is less than second
@@ -402,7 +407,19 @@ static int tnc_read_hashed_node(struct ubifs_info *c, struct ubifs_zbranch *zbr,
return 0;
}
- err = ubifs_tnc_read_node(c, zbr, node);
+ if (c->replaying) {
+ err = fallible_read_node(c, &zbr->key, zbr, node);
+ /*
+ * When the node was not found, return -ENOENT, 0 otherwise.
+ * Negative return codes stay as-is.
+ */
+ if (err == 0)
+ err = -ENOENT;
+ else if (err == 1)
+ err = 0;
+ } else {
+ err = ubifs_tnc_read_node(c, zbr, node);
+ }
if (err)
return err;
@@ -2857,7 +2874,11 @@ struct ubifs_dent_node *ubifs_tnc_next_ent(struct ubifs_info *c,
if (fname_len(nm) > 0) {
if (err) {
/* Handle collisions */
- err = resolve_collision(c, key, &znode, &n, nm);
+ if (c->replaying)
+ err = fallible_resolve_collision(c, key, &znode, &n,
+ nm, 0);
+ else
+ err = resolve_collision(c, key, &znode, &n, nm);
dbg_tnc("rc returned %d, znode %p, n %d",
err, znode, n);
if (unlikely(err < 0))
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index d96e2f30084b..43953e03c356 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -63,6 +63,7 @@ struct userfaultfd_wait_queue {
struct uffd_msg msg;
wait_queue_t wq;
struct userfaultfd_ctx *ctx;
+ bool waken;
};
struct userfaultfd_wake_range {
@@ -86,6 +87,12 @@ static int userfaultfd_wake_function(wait_queue_t *wq, unsigned mode,
if (len && (start > uwq->msg.arg.pagefault.address ||
start + len <= uwq->msg.arg.pagefault.address))
goto out;
+ WRITE_ONCE(uwq->waken, true);
+ /*
+ * The implicit smp_mb__before_spinlock in try_to_wake_up()
+ * renders uwq->waken visible to other CPUs before the task is
+ * waken.
+ */
ret = wake_up_state(wq->private, mode);
if (ret)
/*
@@ -264,6 +271,7 @@ int handle_userfault(struct vm_fault *vmf, unsigned long reason)
struct userfaultfd_wait_queue uwq;
int ret;
bool must_wait, return_to_userland;
+ long blocking_state;
BUG_ON(!rwsem_is_locked(&mm->mmap_sem));
@@ -334,10 +342,13 @@ int handle_userfault(struct vm_fault *vmf, unsigned long reason)
uwq.wq.private = current;
uwq.msg = userfault_msg(vmf->address, vmf->flags, reason);
uwq.ctx = ctx;
+ uwq.waken = false;
return_to_userland =
(vmf->flags & (FAULT_FLAG_USER|FAULT_FLAG_KILLABLE)) ==
(FAULT_FLAG_USER|FAULT_FLAG_KILLABLE);
+ blocking_state = return_to_userland ? TASK_INTERRUPTIBLE :
+ TASK_KILLABLE;
spin_lock(&ctx->fault_pending_wqh.lock);
/*
@@ -350,8 +361,7 @@ int handle_userfault(struct vm_fault *vmf, unsigned long reason)
* following the spin_unlock to happen before the list_add in
* __add_wait_queue.
*/
- set_current_state(return_to_userland ? TASK_INTERRUPTIBLE :
- TASK_KILLABLE);
+ set_current_state(blocking_state);
spin_unlock(&ctx->fault_pending_wqh.lock);
must_wait = userfaultfd_must_wait(ctx, vmf->address, vmf->flags,
@@ -364,6 +374,29 @@ int handle_userfault(struct vm_fault *vmf, unsigned long reason)
wake_up_poll(&ctx->fd_wqh, POLLIN);
schedule();
ret |= VM_FAULT_MAJOR;
+
+ /*
+ * False wakeups can orginate even from rwsem before
+ * up_read() however userfaults will wait either for a
+ * targeted wakeup on the specific uwq waitqueue from
+ * wake_userfault() or for signals or for uffd
+ * release.
+ */
+ while (!READ_ONCE(uwq.waken)) {
+ /*
+ * This needs the full smp_store_mb()
+ * guarantee as the state write must be
+ * visible to other CPUs before reading
+ * uwq.waken from other CPUs.
+ */
+ set_current_state(blocking_state);
+ if (READ_ONCE(uwq.waken) ||
+ READ_ONCE(ctx->released) ||
+ (return_to_userland ? signal_pending(current) :
+ fatal_signal_pending(current)))
+ break;
+ schedule();
+ }
}
__set_current_state(TASK_RUNNING);
diff --git a/fs/xfs/libxfs/xfs_ag_resv.c b/fs/xfs/libxfs/xfs_ag_resv.c
index d346d42c54d1..33db69be4832 100644
--- a/fs/xfs/libxfs/xfs_ag_resv.c
+++ b/fs/xfs/libxfs/xfs_ag_resv.c
@@ -39,6 +39,7 @@
#include "xfs_rmap_btree.h"
#include "xfs_btree.h"
#include "xfs_refcount_btree.h"
+#include "xfs_ialloc_btree.h"
/*
* Per-AG Block Reservations
@@ -200,22 +201,30 @@ __xfs_ag_resv_init(
struct xfs_mount *mp = pag->pag_mount;
struct xfs_ag_resv *resv;
int error;
+ xfs_extlen_t reserved;
- resv = xfs_perag_resv(pag, type);
if (used > ask)
ask = used;
- resv->ar_asked = ask;
- resv->ar_reserved = resv->ar_orig_reserved = ask - used;
- mp->m_ag_max_usable -= ask;
+ reserved = ask - used;
- trace_xfs_ag_resv_init(pag, type, ask);
-
- error = xfs_mod_fdblocks(mp, -(int64_t)resv->ar_reserved, true);
- if (error)
+ error = xfs_mod_fdblocks(mp, -(int64_t)reserved, true);
+ if (error) {
trace_xfs_ag_resv_init_error(pag->pag_mount, pag->pag_agno,
error, _RET_IP_);
+ xfs_warn(mp,
+"Per-AG reservation for AG %u failed. Filesystem may run out of space.",
+ pag->pag_agno);
+ return error;
+ }
- return error;
+ mp->m_ag_max_usable -= ask;
+
+ resv = xfs_perag_resv(pag, type);
+ resv->ar_asked = ask;
+ resv->ar_reserved = resv->ar_orig_reserved = reserved;
+
+ trace_xfs_ag_resv_init(pag, type, ask);
+ return 0;
}
/* Create a per-AG block reservation. */
@@ -223,6 +232,8 @@ int
xfs_ag_resv_init(
struct xfs_perag *pag)
{
+ struct xfs_mount *mp = pag->pag_mount;
+ xfs_agnumber_t agno = pag->pag_agno;
xfs_extlen_t ask;
xfs_extlen_t used;
int error = 0;
@@ -231,23 +242,45 @@ xfs_ag_resv_init(
if (pag->pag_meta_resv.ar_asked == 0) {
ask = used = 0;
- error = xfs_refcountbt_calc_reserves(pag->pag_mount,
- pag->pag_agno, &ask, &used);
+ error = xfs_refcountbt_calc_reserves(mp, agno, &ask, &used);
if (error)
goto out;
- error = __xfs_ag_resv_init(pag, XFS_AG_RESV_METADATA,
- ask, used);
+ error = xfs_finobt_calc_reserves(mp, agno, &ask, &used);
if (error)
goto out;
+
+ error = __xfs_ag_resv_init(pag, XFS_AG_RESV_METADATA,
+ ask, used);
+ if (error) {
+ /*
+ * Because we didn't have per-AG reservations when the
+ * finobt feature was added we might not be able to
+ * reserve all needed blocks. Warn and fall back to the
+ * old and potentially buggy code in that case, but
+ * ensure we do have the reservation for the refcountbt.
+ */
+ ask = used = 0;
+
+ mp->m_inotbt_nores = true;
+
+ error = xfs_refcountbt_calc_reserves(mp, agno, &ask,
+ &used);
+ if (error)
+ goto out;
+
+ error = __xfs_ag_resv_init(pag, XFS_AG_RESV_METADATA,
+ ask, used);
+ if (error)
+ goto out;
+ }
}
/* Create the AGFL metadata reservation */
if (pag->pag_agfl_resv.ar_asked == 0) {
ask = used = 0;
- error = xfs_rmapbt_calc_reserves(pag->pag_mount, pag->pag_agno,
- &ask, &used);
+ error = xfs_rmapbt_calc_reserves(mp, agno, &ask, &used);
if (error)
goto out;
@@ -256,9 +289,16 @@ xfs_ag_resv_init(
goto out;
}
+#ifdef DEBUG
+ /* need to read in the AGF for the ASSERT below to work */
+ error = xfs_alloc_pagf_init(pag->pag_mount, NULL, pag->pag_agno, 0);
+ if (error)
+ return error;
+
ASSERT(xfs_perag_resv(pag, XFS_AG_RESV_METADATA)->ar_reserved +
xfs_perag_resv(pag, XFS_AG_RESV_AGFL)->ar_reserved <=
pag->pagf_freeblks + pag->pagf_flcount);
+#endif
out:
return error;
}
diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index 5050056a0b06..9f06a211e157 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -95,10 +95,7 @@ unsigned int
xfs_alloc_set_aside(
struct xfs_mount *mp)
{
- unsigned int blocks;
-
- blocks = 4 + (mp->m_sb.sb_agcount * XFS_ALLOC_AGFL_RESERVE);
- return blocks;
+ return mp->m_sb.sb_agcount * (XFS_ALLOC_AGFL_RESERVE + 4);
}
/*
@@ -365,36 +362,12 @@ xfs_alloc_fix_len(
return;
ASSERT(rlen >= args->minlen && rlen <= args->maxlen);
ASSERT(rlen % args->prod == args->mod);
+ ASSERT(args->pag->pagf_freeblks + args->pag->pagf_flcount >=
+ rlen + args->minleft);
args->len = rlen;
}
/*
- * Fix up length if there is too little space left in the a.g.
- * Return 1 if ok, 0 if too little, should give up.
- */
-STATIC int
-xfs_alloc_fix_minleft(
- xfs_alloc_arg_t *args) /* allocation argument structure */
-{
- xfs_agf_t *agf; /* a.g. freelist header */
- int diff; /* free space difference */
-
- if (args->minleft == 0)
- return 1;
- agf = XFS_BUF_TO_AGF(args->agbp);
- diff = be32_to_cpu(agf->agf_freeblks)
- - args->len - args->minleft;
- if (diff >= 0)
- return 1;
- args->len += diff; /* shrink the allocated space */
- /* casts to (int) catch length underflows */
- if ((int)args->len >= (int)args->minlen)
- return 1;
- args->agbno = NULLAGBLOCK;
- return 0;
-}
-
-/*
* Update the two btrees, logically removing from freespace the extent
* starting at rbno, rlen blocks. The extent is contained within the
* actual (current) free extent fbno for flen blocks.
@@ -689,8 +662,6 @@ xfs_alloc_ag_vextent(
xfs_alloc_arg_t *args) /* argument structure for allocation */
{
int error=0;
- xfs_extlen_t reservation;
- xfs_extlen_t oldmax;
ASSERT(args->minlen > 0);
ASSERT(args->maxlen > 0);
@@ -699,20 +670,6 @@ xfs_alloc_ag_vextent(
ASSERT(args->alignment > 0);
/*
- * Clamp maxlen to the amount of free space minus any reservations
- * that have been made.
- */
- oldmax = args->maxlen;
- reservation = xfs_ag_resv_needed(args->pag, args->resv);
- if (args->maxlen > args->pag->pagf_freeblks - reservation)
- args->maxlen = args->pag->pagf_freeblks - reservation;
- if (args->maxlen == 0) {
- args->agbno = NULLAGBLOCK;
- args->maxlen = oldmax;
- return 0;
- }
-
- /*
* Branch to correct routine based on the type.
*/
args->wasfromfl = 0;
@@ -731,8 +688,6 @@ xfs_alloc_ag_vextent(
/* NOTREACHED */
}
- args->maxlen = oldmax;
-
if (error || args->agbno == NULLAGBLOCK)
return error;
@@ -841,9 +796,6 @@ xfs_alloc_ag_vextent_exact(
args->len = XFS_AGBLOCK_MIN(tend, args->agbno + args->maxlen)
- args->agbno;
xfs_alloc_fix_len(args);
- if (!xfs_alloc_fix_minleft(args))
- goto not_found;
-
ASSERT(args->agbno + args->len <= tend);
/*
@@ -1149,12 +1101,7 @@ restart:
XFS_WANT_CORRUPTED_GOTO(args->mp, i == 1, error0);
ASSERT(ltbno + ltlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length));
args->len = blen;
- if (!xfs_alloc_fix_minleft(args)) {
- xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
- trace_xfs_alloc_near_nominleft(args);
- return 0;
- }
- blen = args->len;
+
/*
* We are allocating starting at bnew for blen blocks.
*/
@@ -1346,12 +1293,6 @@ restart:
*/
args->len = XFS_EXTLEN_MIN(ltlena, args->maxlen);
xfs_alloc_fix_len(args);
- if (!xfs_alloc_fix_minleft(args)) {
- trace_xfs_alloc_near_nominleft(args);
- xfs_btree_del_cursor(bno_cur_lt, XFS_BTREE_NOERROR);
- xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
- return 0;
- }
rlen = args->len;
(void)xfs_alloc_compute_diff(args->agbno, rlen, args->alignment,
args->datatype, ltbnoa, ltlena, &ltnew);
@@ -1553,8 +1494,6 @@ restart:
}
xfs_alloc_fix_len(args);
- if (!xfs_alloc_fix_minleft(args))
- goto out_nominleft;
rlen = args->len;
XFS_WANT_CORRUPTED_GOTO(args->mp, rlen <= flen, error0);
/*
@@ -2056,7 +1995,7 @@ xfs_alloc_space_available(
int flags)
{
struct xfs_perag *pag = args->pag;
- xfs_extlen_t longest;
+ xfs_extlen_t alloc_len, longest;
xfs_extlen_t reservation; /* blocks that are still reserved */
int available;
@@ -2066,17 +2005,28 @@ xfs_alloc_space_available(
reservation = xfs_ag_resv_needed(pag, args->resv);
/* do we have enough contiguous free space for the allocation? */
+ alloc_len = args->minlen + (args->alignment - 1) + args->minalignslop;
longest = xfs_alloc_longest_free_extent(args->mp, pag, min_free,
reservation);
- if ((args->minlen + args->alignment + args->minalignslop - 1) > longest)
+ if (longest < alloc_len)
return false;
/* do we have enough free space remaining for the allocation? */
available = (int)(pag->pagf_freeblks + pag->pagf_flcount -
- reservation - min_free - args->total);
- if (available < (int)args->minleft || available <= 0)
+ reservation - min_free - args->minleft);
+ if (available < (int)max(args->total, alloc_len))
return false;
+ /*
+ * Clamp maxlen to the amount of free space available for the actual
+ * extent allocation.
+ */
+ if (available < (int)args->maxlen && !(flags & XFS_ALLOC_FLAG_CHECK)) {
+ args->maxlen = available;
+ ASSERT(args->maxlen > 0);
+ ASSERT(args->maxlen >= args->minlen);
+ }
+
return true;
}
@@ -2122,7 +2072,8 @@ xfs_alloc_fix_freelist(
}
need = xfs_alloc_min_freelist(mp, pag);
- if (!xfs_alloc_space_available(args, need, flags))
+ if (!xfs_alloc_space_available(args, need, flags |
+ XFS_ALLOC_FLAG_CHECK))
goto out_agbp_relse;
/*
@@ -2638,12 +2589,10 @@ xfs_alloc_vextent(
xfs_agblock_t agsize; /* allocation group size */
int error;
int flags; /* XFS_ALLOC_FLAG_... locking flags */
- xfs_extlen_t minleft;/* minimum left value, temp copy */
xfs_mount_t *mp; /* mount structure pointer */
xfs_agnumber_t sagno; /* starting allocation group number */
xfs_alloctype_t type; /* input allocation type */
int bump_rotor = 0;
- int no_min = 0;
xfs_agnumber_t rotorstep = xfs_rotorstep; /* inode32 agf stepper */
mp = args->mp;
@@ -2672,7 +2621,6 @@ xfs_alloc_vextent(
trace_xfs_alloc_vextent_badargs(args);
return 0;
}
- minleft = args->minleft;
switch (type) {
case XFS_ALLOCTYPE_THIS_AG:
@@ -2683,9 +2631,7 @@ xfs_alloc_vextent(
*/
args->agno = XFS_FSB_TO_AGNO(mp, args->fsbno);
args->pag = xfs_perag_get(mp, args->agno);
- args->minleft = 0;
error = xfs_alloc_fix_freelist(args, 0);
- args->minleft = minleft;
if (error) {
trace_xfs_alloc_vextent_nofix(args);
goto error0;
@@ -2750,9 +2696,7 @@ xfs_alloc_vextent(
*/
for (;;) {
args->pag = xfs_perag_get(mp, args->agno);
- if (no_min) args->minleft = 0;
error = xfs_alloc_fix_freelist(args, flags);
- args->minleft = minleft;
if (error) {
trace_xfs_alloc_vextent_nofix(args);
goto error0;
@@ -2792,20 +2736,17 @@ xfs_alloc_vextent(
* or switch to non-trylock mode.
*/
if (args->agno == sagno) {
- if (no_min == 1) {
+ if (flags == 0) {
args->agbno = NULLAGBLOCK;
trace_xfs_alloc_vextent_allfailed(args);
break;
}
- if (flags == 0) {
- no_min = 1;
- } else {
- flags = 0;
- if (type == XFS_ALLOCTYPE_START_BNO) {
- args->agbno = XFS_FSB_TO_AGBNO(mp,
- args->fsbno);
- args->type = XFS_ALLOCTYPE_NEAR_BNO;
- }
+
+ flags = 0;
+ if (type == XFS_ALLOCTYPE_START_BNO) {
+ args->agbno = XFS_FSB_TO_AGBNO(mp,
+ args->fsbno);
+ args->type = XFS_ALLOCTYPE_NEAR_BNO;
}
}
xfs_perag_put(args->pag);
diff --git a/fs/xfs/libxfs/xfs_alloc.h b/fs/xfs/libxfs/xfs_alloc.h
index 7c404a6b0ae3..1d0f48a501a3 100644
--- a/fs/xfs/libxfs/xfs_alloc.h
+++ b/fs/xfs/libxfs/xfs_alloc.h
@@ -56,7 +56,7 @@ typedef unsigned int xfs_alloctype_t;
#define XFS_ALLOC_FLAG_FREEING 0x00000002 /* indicate caller is freeing extents*/
#define XFS_ALLOC_FLAG_NORMAP 0x00000004 /* don't modify the rmapbt */
#define XFS_ALLOC_FLAG_NOSHRINK 0x00000008 /* don't shrink the freelist */
-
+#define XFS_ALLOC_FLAG_CHECK 0x00000010 /* test only, don't modify args */
/*
* Argument structure for xfs_alloc routines.
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
index af1ecb19121e..6622d46ddec3 100644
--- a/fs/xfs/libxfs/xfs_attr.c
+++ b/fs/xfs/libxfs/xfs_attr.c
@@ -131,9 +131,6 @@ xfs_attr_get(
if (XFS_FORCED_SHUTDOWN(ip->i_mount))
return -EIO;
- if (!xfs_inode_hasattr(ip))
- return -ENOATTR;
-
error = xfs_attr_args_init(&args, ip, name, flags);
if (error)
return error;
@@ -392,9 +389,6 @@ xfs_attr_remove(
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return -EIO;
- if (!xfs_inode_hasattr(dp))
- return -ENOATTR;
-
error = xfs_attr_args_init(&args, dp, name, flags);
if (error)
return error;
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 2760bc3b2536..bfc00de5c6f1 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -3629,7 +3629,7 @@ xfs_bmap_btalloc(
align = xfs_get_cowextsz_hint(ap->ip);
else if (xfs_alloc_is_userdata(ap->datatype))
align = xfs_get_extsz_hint(ap->ip);
- if (unlikely(align)) {
+ if (align) {
error = xfs_bmap_extsize_align(mp, &ap->got, &ap->prev,
align, 0, ap->eof, 0, ap->conv,
&ap->offset, &ap->length);
@@ -3701,7 +3701,7 @@ xfs_bmap_btalloc(
args.minlen = ap->minlen;
}
/* apply extent size hints if obtained earlier */
- if (unlikely(align)) {
+ if (align) {
args.prod = align;
if ((args.mod = (xfs_extlen_t)do_mod(ap->offset, args.prod)))
args.mod = (xfs_extlen_t)(args.prod - args.mod);
@@ -3812,7 +3812,6 @@ xfs_bmap_btalloc(
args.fsbno = 0;
args.type = XFS_ALLOCTYPE_FIRST_AG;
args.total = ap->minlen;
- args.minleft = 0;
if ((error = xfs_alloc_vextent(&args)))
return error;
ap->dfops->dop_low = true;
@@ -4344,8 +4343,6 @@ xfs_bmapi_allocate(
if (error)
return error;
- if (bma->dfops->dop_low)
- bma->minleft = 0;
if (bma->cur)
bma->cur->bc_private.b.firstblock = *bma->firstblock;
if (bma->blkno == NULLFSBLOCK)
@@ -4517,8 +4514,6 @@ xfs_bmapi_write(
int n; /* current extent index */
xfs_fileoff_t obno; /* old block number (offset) */
int whichfork; /* data or attr fork */
- char inhole; /* current location is hole in file */
- char wasdelay; /* old extent was delayed */
#ifdef DEBUG
xfs_fileoff_t orig_bno; /* original block number value */
@@ -4606,22 +4601,44 @@ xfs_bmapi_write(
bma.firstblock = firstblock;
while (bno < end && n < *nmap) {
- inhole = eof || bma.got.br_startoff > bno;
- wasdelay = !inhole && isnullstartblock(bma.got.br_startblock);
+ bool need_alloc = false, wasdelay = false;
- /*
- * Make sure we only reflink into a hole.
- */
- if (flags & XFS_BMAPI_REMAP)
- ASSERT(inhole);
- if (flags & XFS_BMAPI_COWFORK)
- ASSERT(!inhole);
+ /* in hole or beyoned EOF? */
+ if (eof || bma.got.br_startoff > bno) {
+ if (flags & XFS_BMAPI_DELALLOC) {
+ /*
+ * For the COW fork we can reasonably get a
+ * request for converting an extent that races
+ * with other threads already having converted
+ * part of it, as there converting COW to
+ * regular blocks is not protected using the
+ * IOLOCK.
+ */
+ ASSERT(flags & XFS_BMAPI_COWFORK);
+ if (!(flags & XFS_BMAPI_COWFORK)) {
+ error = -EIO;
+ goto error0;
+ }
+
+ if (eof || bno >= end)
+ break;
+ } else {
+ need_alloc = true;
+ }
+ } else {
+ /*
+ * Make sure we only reflink into a hole.
+ */
+ ASSERT(!(flags & XFS_BMAPI_REMAP));
+ if (isnullstartblock(bma.got.br_startblock))
+ wasdelay = true;
+ }
/*
* First, deal with the hole before the allocated space
* that we found, if any.
*/
- if (inhole || wasdelay) {
+ if (need_alloc || wasdelay) {
bma.eof = eof;
bma.conv = !!(flags & XFS_BMAPI_CONVERT);
bma.wasdel = wasdelay;
diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h
index cecd094404cc..cdef87db5262 100644
--- a/fs/xfs/libxfs/xfs_bmap.h
+++ b/fs/xfs/libxfs/xfs_bmap.h
@@ -110,6 +110,9 @@ struct xfs_extent_free_item
/* Map something in the CoW fork. */
#define XFS_BMAPI_COWFORK 0x200
+/* Only convert delalloc space, don't allocate entirely new extents */
+#define XFS_BMAPI_DELALLOC 0x400
+
#define XFS_BMAPI_FLAGS \
{ XFS_BMAPI_ENTIRE, "ENTIRE" }, \
{ XFS_BMAPI_METADATA, "METADATA" }, \
@@ -120,7 +123,8 @@ struct xfs_extent_free_item
{ XFS_BMAPI_CONVERT, "CONVERT" }, \
{ XFS_BMAPI_ZERO, "ZERO" }, \
{ XFS_BMAPI_REMAP, "REMAP" }, \
- { XFS_BMAPI_COWFORK, "COWFORK" }
+ { XFS_BMAPI_COWFORK, "COWFORK" }, \
+ { XFS_BMAPI_DELALLOC, "DELALLOC" }
static inline int xfs_bmapi_aflag(int w)
diff --git a/fs/xfs/libxfs/xfs_bmap_btree.c b/fs/xfs/libxfs/xfs_bmap_btree.c
index d6330c297ca0..d9be241fc86f 100644
--- a/fs/xfs/libxfs/xfs_bmap_btree.c
+++ b/fs/xfs/libxfs/xfs_bmap_btree.c
@@ -502,12 +502,11 @@ try_another_ag:
if (args.fsbno == NULLFSBLOCK && args.minleft) {
/*
* Could not find an AG with enough free space to satisfy
- * a full btree split. Try again without minleft and if
+ * a full btree split. Try again and if
* successful activate the lowspace algorithm.
*/
args.fsbno = 0;
args.type = XFS_ALLOCTYPE_FIRST_AG;
- args.minleft = 0;
error = xfs_alloc_vextent(&args);
if (error)
goto error0;
diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c
index c58d72c220f5..2f389d366e93 100644
--- a/fs/xfs/libxfs/xfs_dir2.c
+++ b/fs/xfs/libxfs/xfs_dir2.c
@@ -36,21 +36,29 @@
struct xfs_name xfs_name_dotdot = { (unsigned char *)"..", 2, XFS_DIR3_FT_DIR };
/*
- * @mode, if set, indicates that the type field needs to be set up.
- * This uses the transformation from file mode to DT_* as defined in linux/fs.h
- * for file type specification. This will be propagated into the directory
- * structure if appropriate for the given operation and filesystem config.
+ * Convert inode mode to directory entry filetype
*/
-const unsigned char xfs_mode_to_ftype[S_IFMT >> S_SHIFT] = {
- [0] = XFS_DIR3_FT_UNKNOWN,
- [S_IFREG >> S_SHIFT] = XFS_DIR3_FT_REG_FILE,
- [S_IFDIR >> S_SHIFT] = XFS_DIR3_FT_DIR,
- [S_IFCHR >> S_SHIFT] = XFS_DIR3_FT_CHRDEV,
- [S_IFBLK >> S_SHIFT] = XFS_DIR3_FT_BLKDEV,
- [S_IFIFO >> S_SHIFT] = XFS_DIR3_FT_FIFO,
- [S_IFSOCK >> S_SHIFT] = XFS_DIR3_FT_SOCK,
- [S_IFLNK >> S_SHIFT] = XFS_DIR3_FT_SYMLINK,
-};
+unsigned char xfs_mode_to_ftype(int mode)
+{
+ switch (mode & S_IFMT) {
+ case S_IFREG:
+ return XFS_DIR3_FT_REG_FILE;
+ case S_IFDIR:
+ return XFS_DIR3_FT_DIR;
+ case S_IFCHR:
+ return XFS_DIR3_FT_CHRDEV;
+ case S_IFBLK:
+ return XFS_DIR3_FT_BLKDEV;
+ case S_IFIFO:
+ return XFS_DIR3_FT_FIFO;
+ case S_IFSOCK:
+ return XFS_DIR3_FT_SOCK;
+ case S_IFLNK:
+ return XFS_DIR3_FT_SYMLINK;
+ default:
+ return XFS_DIR3_FT_UNKNOWN;
+ }
+}
/*
* ASCII case-insensitive (ie. A-Z) support for directories that was
@@ -631,7 +639,8 @@ xfs_dir2_isblock(
if ((rval = xfs_bmap_last_offset(args->dp, &last, XFS_DATA_FORK)))
return rval;
rval = XFS_FSB_TO_B(args->dp->i_mount, last) == args->geo->blksize;
- ASSERT(rval == 0 || args->dp->i_d.di_size == args->geo->blksize);
+ if (rval != 0 && args->dp->i_d.di_size != args->geo->blksize)
+ return -EFSCORRUPTED;
*vp = rval;
return 0;
}
diff --git a/fs/xfs/libxfs/xfs_dir2.h b/fs/xfs/libxfs/xfs_dir2.h
index 0197590fa7d7..d6e6d9d16f6c 100644
--- a/fs/xfs/libxfs/xfs_dir2.h
+++ b/fs/xfs/libxfs/xfs_dir2.h
@@ -18,6 +18,9 @@
#ifndef __XFS_DIR2_H__
#define __XFS_DIR2_H__
+#include "xfs_da_format.h"
+#include "xfs_da_btree.h"
+
struct xfs_defer_ops;
struct xfs_da_args;
struct xfs_inode;
@@ -32,10 +35,9 @@ struct xfs_dir2_data_unused;
extern struct xfs_name xfs_name_dotdot;
/*
- * directory filetype conversion tables.
+ * Convert inode mode to directory entry filetype
*/
-#define S_SHIFT 12
-extern const unsigned char xfs_mode_to_ftype[];
+extern unsigned char xfs_mode_to_ftype(int mode);
/*
* directory operations vector for encode/decode routines
diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c
index 0fd086d03d41..7c471881c9a6 100644
--- a/fs/xfs/libxfs/xfs_ialloc_btree.c
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.c
@@ -82,11 +82,12 @@ xfs_finobt_set_root(
}
STATIC int
-xfs_inobt_alloc_block(
+__xfs_inobt_alloc_block(
struct xfs_btree_cur *cur,
union xfs_btree_ptr *start,
union xfs_btree_ptr *new,
- int *stat)
+ int *stat,
+ enum xfs_ag_resv_type resv)
{
xfs_alloc_arg_t args; /* block allocation args */
int error; /* error return value */
@@ -103,6 +104,7 @@ xfs_inobt_alloc_block(
args.maxlen = 1;
args.prod = 1;
args.type = XFS_ALLOCTYPE_NEAR_BNO;
+ args.resv = resv;
error = xfs_alloc_vextent(&args);
if (error) {
@@ -123,6 +125,27 @@ xfs_inobt_alloc_block(
}
STATIC int
+xfs_inobt_alloc_block(
+ struct xfs_btree_cur *cur,
+ union xfs_btree_ptr *start,
+ union xfs_btree_ptr *new,
+ int *stat)
+{
+ return __xfs_inobt_alloc_block(cur, start, new, stat, XFS_AG_RESV_NONE);
+}
+
+STATIC int
+xfs_finobt_alloc_block(
+ struct xfs_btree_cur *cur,
+ union xfs_btree_ptr *start,
+ union xfs_btree_ptr *new,
+ int *stat)
+{
+ return __xfs_inobt_alloc_block(cur, start, new, stat,
+ XFS_AG_RESV_METADATA);
+}
+
+STATIC int
xfs_inobt_free_block(
struct xfs_btree_cur *cur,
struct xfs_buf *bp)
@@ -328,7 +351,7 @@ static const struct xfs_btree_ops xfs_finobt_ops = {
.dup_cursor = xfs_inobt_dup_cursor,
.set_root = xfs_finobt_set_root,
- .alloc_block = xfs_inobt_alloc_block,
+ .alloc_block = xfs_finobt_alloc_block,
.free_block = xfs_inobt_free_block,
.get_minrecs = xfs_inobt_get_minrecs,
.get_maxrecs = xfs_inobt_get_maxrecs,
@@ -480,3 +503,64 @@ xfs_inobt_rec_check_count(
return 0;
}
#endif /* DEBUG */
+
+static xfs_extlen_t
+xfs_inobt_max_size(
+ struct xfs_mount *mp)
+{
+ /* Bail out if we're uninitialized, which can happen in mkfs. */
+ if (mp->m_inobt_mxr[0] == 0)
+ return 0;
+
+ return xfs_btree_calc_size(mp, mp->m_inobt_mnr,
+ (uint64_t)mp->m_sb.sb_agblocks * mp->m_sb.sb_inopblock /
+ XFS_INODES_PER_CHUNK);
+}
+
+static int
+xfs_inobt_count_blocks(
+ struct xfs_mount *mp,
+ xfs_agnumber_t agno,
+ xfs_btnum_t btnum,
+ xfs_extlen_t *tree_blocks)
+{
+ struct xfs_buf *agbp;
+ struct xfs_btree_cur *cur;
+ int error;
+
+ error = xfs_ialloc_read_agi(mp, NULL, agno, &agbp);
+ if (error)
+ return error;
+
+ cur = xfs_inobt_init_cursor(mp, NULL, agbp, agno, btnum);
+ error = xfs_btree_count_blocks(cur, tree_blocks);
+ xfs_btree_del_cursor(cur, error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR);
+ xfs_buf_relse(agbp);
+
+ return error;
+}
+
+/*
+ * Figure out how many blocks to reserve and how many are used by this btree.
+ */
+int
+xfs_finobt_calc_reserves(
+ struct xfs_mount *mp,
+ xfs_agnumber_t agno,
+ xfs_extlen_t *ask,
+ xfs_extlen_t *used)
+{
+ xfs_extlen_t tree_len = 0;
+ int error;
+
+ if (!xfs_sb_version_hasfinobt(&mp->m_sb))
+ return 0;
+
+ error = xfs_inobt_count_blocks(mp, agno, XFS_BTNUM_FINO, &tree_len);
+ if (error)
+ return error;
+
+ *ask += xfs_inobt_max_size(mp);
+ *used += tree_len;
+ return 0;
+}
diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.h b/fs/xfs/libxfs/xfs_ialloc_btree.h
index bd88453217ce..aa81e2e63f3f 100644
--- a/fs/xfs/libxfs/xfs_ialloc_btree.h
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.h
@@ -72,4 +72,7 @@ int xfs_inobt_rec_check_count(struct xfs_mount *,
#define xfs_inobt_rec_check_count(mp, rec) 0
#endif /* DEBUG */
+int xfs_finobt_calc_reserves(struct xfs_mount *mp, xfs_agnumber_t agno,
+ xfs_extlen_t *ask, xfs_extlen_t *used);
+
#endif /* __XFS_IALLOC_BTREE_H__ */
diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c
index dd483e2767f7..d93f9d918cfc 100644
--- a/fs/xfs/libxfs/xfs_inode_buf.c
+++ b/fs/xfs/libxfs/xfs_inode_buf.c
@@ -29,6 +29,7 @@
#include "xfs_icache.h"
#include "xfs_trans.h"
#include "xfs_ialloc.h"
+#include "xfs_dir2.h"
/*
* Check that none of the inode's in the buffer have a next
@@ -386,6 +387,7 @@ xfs_dinode_verify(
xfs_ino_t ino,
struct xfs_dinode *dip)
{
+ uint16_t mode;
uint16_t flags;
uint64_t flags2;
@@ -396,8 +398,12 @@ xfs_dinode_verify(
if (be64_to_cpu(dip->di_size) & (1ULL << 63))
return false;
- /* No zero-length symlinks. */
- if (S_ISLNK(be16_to_cpu(dip->di_mode)) && dip->di_size == 0)
+ mode = be16_to_cpu(dip->di_mode);
+ if (mode && xfs_mode_to_ftype(mode) == XFS_DIR3_FT_UNKNOWN)
+ return false;
+
+ /* No zero-length symlinks/dirs. */
+ if ((S_ISLNK(mode) || S_ISDIR(mode)) && dip->di_size == 0)
return false;
/* only version 3 or greater inodes are extensively verified here */
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
index 2580262e4ea0..584ec896a533 100644
--- a/fs/xfs/libxfs/xfs_sb.c
+++ b/fs/xfs/libxfs/xfs_sb.c
@@ -242,7 +242,7 @@ xfs_mount_validate_sb(
sbp->sb_blocklog < XFS_MIN_BLOCKSIZE_LOG ||
sbp->sb_blocklog > XFS_MAX_BLOCKSIZE_LOG ||
sbp->sb_blocksize != (1 << sbp->sb_blocklog) ||
- sbp->sb_dirblklog > XFS_MAX_BLOCKSIZE_LOG ||
+ sbp->sb_dirblklog + sbp->sb_blocklog > XFS_MAX_BLOCKSIZE_LOG ||
sbp->sb_inodesize < XFS_DINODE_MIN_SIZE ||
sbp->sb_inodesize > XFS_DINODE_MAX_SIZE ||
sbp->sb_inodelog < XFS_DINODE_MIN_LOG ||
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 0f56fcd3a5d5..631e7c0e0a29 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -1152,19 +1152,22 @@ xfs_vm_releasepage(
* block_invalidatepage() can send pages that are still marked dirty
* but otherwise have invalidated buffers.
*
- * We've historically freed buffers on the latter. Instead, quietly
- * filter out all dirty pages to avoid spurious buffer state warnings.
- * This can likely be removed once shrink_active_list() is fixed.
+ * We want to release the latter to avoid unnecessary buildup of the
+ * LRU, skip the former and warn if we've left any lingering
+ * delalloc/unwritten buffers on clean pages. Skip pages with delalloc
+ * or unwritten buffers and warn if the page is not dirty. Otherwise
+ * try to release the buffers.
*/
- if (PageDirty(page))
- return 0;
-
xfs_count_page_state(page, &delalloc, &unwritten);
- if (WARN_ON_ONCE(delalloc))
+ if (delalloc) {
+ WARN_ON_ONCE(!PageDirty(page));
return 0;
- if (WARN_ON_ONCE(unwritten))
+ }
+ if (unwritten) {
+ WARN_ON_ONCE(!PageDirty(page));
return 0;
+ }
return try_to_free_buffers(page);
}
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index b9abce524c33..c1417919ab0a 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -528,7 +528,6 @@ xfs_getbmap(
xfs_bmbt_irec_t *map; /* buffer for user's data */
xfs_mount_t *mp; /* file system mount point */
int nex; /* # of user extents can do */
- int nexleft; /* # of user extents left */
int subnex; /* # of bmapi's can do */
int nmap; /* number of map entries */
struct getbmapx *out; /* output structure */
@@ -686,10 +685,8 @@ xfs_getbmap(
goto out_free_map;
}
- nexleft = nex;
-
do {
- nmap = (nexleft > subnex) ? subnex : nexleft;
+ nmap = (nex> subnex) ? subnex : nex;
error = xfs_bmapi_read(ip, XFS_BB_TO_FSBT(mp, bmv->bmv_offset),
XFS_BB_TO_FSB(mp, bmv->bmv_length),
map, &nmap, bmapi_flags);
@@ -697,8 +694,8 @@ xfs_getbmap(
goto out_free_map;
ASSERT(nmap <= subnex);
- for (i = 0; i < nmap && nexleft && bmv->bmv_length &&
- cur_ext < bmv->bmv_count; i++) {
+ for (i = 0; i < nmap && bmv->bmv_length &&
+ cur_ext < bmv->bmv_count - 1; i++) {
out[cur_ext].bmv_oflags = 0;
if (map[i].br_state == XFS_EXT_UNWRITTEN)
out[cur_ext].bmv_oflags |= BMV_OF_PREALLOC;
@@ -760,16 +757,27 @@ xfs_getbmap(
continue;
}
+ /*
+ * In order to report shared extents accurately,
+ * we report each distinct shared/unshared part
+ * of a single bmbt record using multiple bmap
+ * extents. To make that happen, we iterate the
+ * same map array item multiple times, each
+ * time trimming out the subextent that we just
+ * reported.
+ *
+ * Because of this, we must check the out array
+ * index (cur_ext) directly against bmv_count-1
+ * to avoid overflows.
+ */
if (inject_map.br_startblock != NULLFSBLOCK) {
map[i] = inject_map;
i--;
- } else
- nexleft--;
+ }
bmv->bmv_entries++;
cur_ext++;
}
- } while (nmap && nexleft && bmv->bmv_length &&
- cur_ext < bmv->bmv_count);
+ } while (nmap && bmv->bmv_length && cur_ext < bmv->bmv_count - 1);
out_free_map:
kmem_free(map);
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 7f0a01f7b592..ac3b4db519df 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -422,6 +422,7 @@ retry:
out_free_pages:
for (i = 0; i < bp->b_page_count; i++)
__free_page(bp->b_pages[i]);
+ bp->b_flags &= ~_XBF_PAGES;
return error;
}
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index 7a30b8f11db7..9d06cc30e875 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -710,6 +710,10 @@ xfs_dq_get_next_id(
/* Simple advance */
next_id = *id + 1;
+ /* If we'd wrap past the max ID, stop */
+ if (next_id < *id)
+ return -ENOENT;
+
/* If new ID is within the current chunk, advancing it sufficed */
if (next_id % mp->m_quotainfo->qi_dqperchunk) {
*id = next_id;
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index b9557795eb74..de32f0fe47c8 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1792,22 +1792,23 @@ xfs_inactive_ifree(
int error;
/*
- * The ifree transaction might need to allocate blocks for record
- * insertion to the finobt. We don't want to fail here at ENOSPC, so
- * allow ifree to dip into the reserved block pool if necessary.
- *
- * Freeing large sets of inodes generally means freeing inode chunks,
- * directory and file data blocks, so this should be relatively safe.
- * Only under severe circumstances should it be possible to free enough
- * inodes to exhaust the reserve block pool via finobt expansion while
- * at the same time not creating free space in the filesystem.
+ * We try to use a per-AG reservation for any block needed by the finobt
+ * tree, but as the finobt feature predates the per-AG reservation
+ * support a degraded file system might not have enough space for the
+ * reservation at mount time. In that case try to dip into the reserved
+ * pool and pray.
*
* Send a warning if the reservation does happen to fail, as the inode
* now remains allocated and sits on the unlinked list until the fs is
* repaired.
*/
- error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ifree,
- XFS_IFREE_SPACE_RES(mp), 0, XFS_TRANS_RESERVE, &tp);
+ if (unlikely(mp->m_inotbt_nores)) {
+ error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ifree,
+ XFS_IFREE_SPACE_RES(mp), 0, XFS_TRANS_RESERVE,
+ &tp);
+ } else {
+ error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ifree, 0, 0, 0, &tp);
+ }
if (error) {
if (error == -ENOSPC) {
xfs_warn_ratelimited(mp,
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 0d147428971e..1aa3abd67b36 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -681,7 +681,7 @@ xfs_iomap_write_allocate(
xfs_trans_t *tp;
int nimaps;
int error = 0;
- int flags = 0;
+ int flags = XFS_BMAPI_DELALLOC;
int nres;
if (whichfork == XFS_COW_FORK)
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 308bebb6dfd2..22c16155f1b4 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -98,12 +98,27 @@ xfs_init_security(
static void
xfs_dentry_to_name(
struct xfs_name *namep,
+ struct dentry *dentry)
+{
+ namep->name = dentry->d_name.name;
+ namep->len = dentry->d_name.len;
+ namep->type = XFS_DIR3_FT_UNKNOWN;
+}
+
+static int
+xfs_dentry_mode_to_name(
+ struct xfs_name *namep,
struct dentry *dentry,
int mode)
{
namep->name = dentry->d_name.name;
namep->len = dentry->d_name.len;
- namep->type = xfs_mode_to_ftype[(mode & S_IFMT) >> S_SHIFT];
+ namep->type = xfs_mode_to_ftype(mode);
+
+ if (unlikely(namep->type == XFS_DIR3_FT_UNKNOWN))
+ return -EFSCORRUPTED;
+
+ return 0;
}
STATIC void
@@ -119,7 +134,7 @@ xfs_cleanup_inode(
* xfs_init_security we must back out.
* ENOSPC can hit here, among other things.
*/
- xfs_dentry_to_name(&teardown, dentry, 0);
+ xfs_dentry_to_name(&teardown, dentry);
xfs_remove(XFS_I(dir), &teardown, XFS_I(inode));
}
@@ -154,8 +169,12 @@ xfs_generic_create(
if (error)
return error;
+ /* Verify mode is valid also for tmpfile case */
+ error = xfs_dentry_mode_to_name(&name, dentry, mode);
+ if (unlikely(error))
+ goto out_free_acl;
+
if (!tmpfile) {
- xfs_dentry_to_name(&name, dentry, mode);
error = xfs_create(XFS_I(dir), &name, mode, rdev, &ip);
} else {
error = xfs_create_tmpfile(XFS_I(dir), dentry, mode, &ip);
@@ -248,7 +267,7 @@ xfs_vn_lookup(
if (dentry->d_name.len >= MAXNAMELEN)
return ERR_PTR(-ENAMETOOLONG);
- xfs_dentry_to_name(&name, dentry, 0);
+ xfs_dentry_to_name(&name, dentry);
error = xfs_lookup(XFS_I(dir), &name, &cip, NULL);
if (unlikely(error)) {
if (unlikely(error != -ENOENT))
@@ -275,7 +294,7 @@ xfs_vn_ci_lookup(
if (dentry->d_name.len >= MAXNAMELEN)
return ERR_PTR(-ENAMETOOLONG);
- xfs_dentry_to_name(&xname, dentry, 0);
+ xfs_dentry_to_name(&xname, dentry);
error = xfs_lookup(XFS_I(dir), &xname, &ip, &ci_name);
if (unlikely(error)) {
if (unlikely(error != -ENOENT))
@@ -310,7 +329,9 @@ xfs_vn_link(
struct xfs_name name;
int error;
- xfs_dentry_to_name(&name, dentry, inode->i_mode);
+ error = xfs_dentry_mode_to_name(&name, dentry, inode->i_mode);
+ if (unlikely(error))
+ return error;
error = xfs_link(XFS_I(dir), XFS_I(inode), &name);
if (unlikely(error))
@@ -329,7 +350,7 @@ xfs_vn_unlink(
struct xfs_name name;
int error;
- xfs_dentry_to_name(&name, dentry, 0);
+ xfs_dentry_to_name(&name, dentry);
error = xfs_remove(XFS_I(dir), &name, XFS_I(d_inode(dentry)));
if (error)
@@ -359,7 +380,9 @@ xfs_vn_symlink(
mode = S_IFLNK |
(irix_symlink_mode ? 0777 & ~current_umask() : S_IRWXUGO);
- xfs_dentry_to_name(&name, dentry, mode);
+ error = xfs_dentry_mode_to_name(&name, dentry, mode);
+ if (unlikely(error))
+ goto out;
error = xfs_symlink(XFS_I(dir), &name, symname, mode, &cip);
if (unlikely(error))
@@ -395,6 +418,7 @@ xfs_vn_rename(
{
struct inode *new_inode = d_inode(ndentry);
int omode = 0;
+ int error;
struct xfs_name oname;
struct xfs_name nname;
@@ -405,8 +429,14 @@ xfs_vn_rename(
if (flags & RENAME_EXCHANGE)
omode = d_inode(ndentry)->i_mode;
- xfs_dentry_to_name(&oname, odentry, omode);
- xfs_dentry_to_name(&nname, ndentry, d_inode(odentry)->i_mode);
+ error = xfs_dentry_mode_to_name(&oname, odentry, omode);
+ if (omode && unlikely(error))
+ return error;
+
+ error = xfs_dentry_mode_to_name(&nname, ndentry,
+ d_inode(odentry)->i_mode);
+ if (unlikely(error))
+ return error;
return xfs_rename(XFS_I(odir), &oname, XFS_I(d_inode(odentry)),
XFS_I(ndir), &nname,
diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
index e467218c0098..7a989de224f4 100644
--- a/fs/xfs/xfs_linux.h
+++ b/fs/xfs/xfs_linux.h
@@ -331,11 +331,11 @@ static inline __uint64_t howmany_64(__uint64_t x, __uint32_t y)
}
#define ASSERT_ALWAYS(expr) \
- (unlikely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
+ (likely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
#ifdef DEBUG
#define ASSERT(expr) \
- (unlikely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
+ (likely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
#ifndef STATIC
# define STATIC noinline
@@ -346,7 +346,7 @@ static inline __uint64_t howmany_64(__uint64_t x, __uint32_t y)
#ifdef XFS_WARN
#define ASSERT(expr) \
- (unlikely(expr) ? (void)0 : asswarn(#expr, __FILE__, __LINE__))
+ (likely(expr) ? (void)0 : asswarn(#expr, __FILE__, __LINE__))
#ifndef STATIC
# define STATIC static noinline
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index c39ac14ff540..b1469f0a91a6 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -3317,12 +3317,8 @@ xfs_log_force(
xfs_mount_t *mp,
uint flags)
{
- int error;
-
trace_xfs_log_force(mp, 0, _RET_IP_);
- error = _xfs_log_force(mp, flags, NULL);
- if (error)
- xfs_warn(mp, "%s: error %d returned.", __func__, error);
+ _xfs_log_force(mp, flags, NULL);
}
/*
@@ -3466,12 +3462,8 @@ xfs_log_force_lsn(
xfs_lsn_t lsn,
uint flags)
{
- int error;
-
trace_xfs_log_force(mp, lsn, _RET_IP_);
- error = _xfs_log_force_lsn(mp, lsn, flags, NULL);
- if (error)
- xfs_warn(mp, "%s: error %d returned.", __func__, error);
+ _xfs_log_force_lsn(mp, lsn, flags, NULL);
}
/*
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 84f785218907..7f351f706b7a 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -140,6 +140,7 @@ typedef struct xfs_mount {
int m_fixedfsid[2]; /* unchanged for life of FS */
uint m_dmevmask; /* DMI events for this FS */
__uint64_t m_flags; /* global mount flags */
+ bool m_inotbt_nores; /* no per-AG finobt resv. */
int m_ialloc_inos; /* inodes in inode allocation */
int m_ialloc_blks; /* blocks in inode allocation */
int m_ialloc_min_blks;/* min blocks in sparse inode
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index 45e50ea90769..b669b123287b 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -1177,7 +1177,8 @@ xfs_qm_dqusage_adjust(
* the case in all other instances. It's OK that we do this because
* quotacheck is done only at mount time.
*/
- error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip);
+ error = xfs_iget(mp, NULL, ino, XFS_IGET_DONTCACHE, XFS_ILOCK_EXCL,
+ &ip);
if (error) {
*res = BULKSTAT_RV_NOTHING;
return error;