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-rw-r--r--fs/nilfs2/btree.c4
-rw-r--r--fs/nilfs2/dir.c13
-rw-r--r--fs/nilfs2/direct.c3
-rw-r--r--fs/nilfs2/inode.c15
-rw-r--r--fs/nilfs2/namei.c29
-rw-r--r--fs/nilfs2/nilfs.h4
-rw-r--r--fs/nilfs2/page.c31
-rw-r--r--fs/nilfs2/segment.c4
-rw-r--r--fs/nilfs2/the_nilfs.c3
9 files changed, 74 insertions, 32 deletions
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index ef5061bb56da..9c51a4ac2627 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -2103,11 +2103,13 @@ static int nilfs_btree_propagate(struct nilfs_bmap *btree,
ret = nilfs_btree_do_lookup(btree, path, key, NULL, level + 1, 0);
if (ret < 0) {
- if (unlikely(ret == -ENOENT))
+ if (unlikely(ret == -ENOENT)) {
nilfs_crit(btree->b_inode->i_sb,
"writing node/leaf block does not appear in b-tree (ino=%lu) at key=%llu, level=%d",
btree->b_inode->i_ino,
(unsigned long long)key, level);
+ ret = -EINVAL;
+ }
goto out;
}
diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c
index f61c58fbf117..0cc32e9c71cb 100644
--- a/fs/nilfs2/dir.c
+++ b/fs/nilfs2/dir.c
@@ -400,7 +400,7 @@ int nilfs_inode_by_name(struct inode *dir, const struct qstr *qstr, ino_t *ino)
return 0;
}
-void nilfs_set_link(struct inode *dir, struct nilfs_dir_entry *de,
+int nilfs_set_link(struct inode *dir, struct nilfs_dir_entry *de,
struct folio *folio, struct inode *inode)
{
size_t from = offset_in_folio(folio, de);
@@ -410,11 +410,15 @@ void nilfs_set_link(struct inode *dir, struct nilfs_dir_entry *de,
folio_lock(folio);
err = nilfs_prepare_chunk(folio, from, to);
- BUG_ON(err);
+ if (unlikely(err)) {
+ folio_unlock(folio);
+ return err;
+ }
de->inode = cpu_to_le64(inode->i_ino);
de->file_type = fs_umode_to_ftype(inode->i_mode);
nilfs_commit_chunk(folio, mapping, from, to);
inode_set_mtime_to_ts(dir, inode_set_ctime_current(dir));
+ return 0;
}
/*
@@ -543,7 +547,10 @@ int nilfs_delete_entry(struct nilfs_dir_entry *dir, struct folio *folio)
from = (char *)pde - kaddr;
folio_lock(folio);
err = nilfs_prepare_chunk(folio, from, to);
- BUG_ON(err);
+ if (unlikely(err)) {
+ folio_unlock(folio);
+ goto out;
+ }
if (pde)
pde->rec_len = nilfs_rec_len_to_disk(to - from);
dir->inode = 0;
diff --git a/fs/nilfs2/direct.c b/fs/nilfs2/direct.c
index 893ab36824cc..2d8dc6b35b54 100644
--- a/fs/nilfs2/direct.c
+++ b/fs/nilfs2/direct.c
@@ -273,6 +273,9 @@ static int nilfs_direct_propagate(struct nilfs_bmap *bmap,
dat = nilfs_bmap_get_dat(bmap);
key = nilfs_bmap_data_get_key(bmap, bh);
ptr = nilfs_direct_get_ptr(bmap, key);
+ if (ptr == NILFS_BMAP_INVALID_PTR)
+ return -EINVAL;
+
if (!buffer_nilfs_volatile(bh)) {
oldreq.pr_entry_nr = ptr;
newreq.pr_entry_nr = ptr;
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index aaca34ec678f..afb3b9637740 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -499,11 +499,18 @@ static int __nilfs_read_inode(struct super_block *sb,
inode->i_op = &nilfs_symlink_inode_operations;
inode_nohighmem(inode);
inode->i_mapping->a_ops = &nilfs_aops;
- } else {
+ } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
+ S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
inode->i_op = &nilfs_special_inode_operations;
init_special_inode(
inode, inode->i_mode,
huge_decode_dev(le64_to_cpu(raw_inode->i_device_code)));
+ } else {
+ nilfs_error(sb,
+ "invalid file type bits in mode 0%o for inode %lu",
+ inode->i_mode, ino);
+ err = -EIO;
+ goto failed_unmap;
}
nilfs_ifile_unmap_inode(raw_inode);
brelse(bh);
@@ -1219,7 +1226,7 @@ int nilfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
if (size) {
if (phys && blkphy << blkbits == phys + size) {
/* The current extent goes on */
- size += n << blkbits;
+ size += (u64)n << blkbits;
} else {
/* Terminate the current extent */
ret = fiemap_fill_next_extent(
@@ -1232,14 +1239,14 @@ int nilfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
flags = FIEMAP_EXTENT_MERGED;
logical = blkoff << blkbits;
phys = blkphy << blkbits;
- size = n << blkbits;
+ size = (u64)n << blkbits;
}
} else {
/* Start a new extent */
flags = FIEMAP_EXTENT_MERGED;
logical = blkoff << blkbits;
phys = blkphy << blkbits;
- size = n << blkbits;
+ size = (u64)n << blkbits;
}
blkoff += n;
}
diff --git a/fs/nilfs2/namei.c b/fs/nilfs2/namei.c
index 1d836a5540f3..e02fae6757f1 100644
--- a/fs/nilfs2/namei.c
+++ b/fs/nilfs2/namei.c
@@ -406,8 +406,10 @@ static int nilfs_rename(struct mnt_idmap *idmap,
err = PTR_ERR(new_de);
goto out_dir;
}
- nilfs_set_link(new_dir, new_de, new_folio, old_inode);
+ err = nilfs_set_link(new_dir, new_de, new_folio, old_inode);
folio_release_kmap(new_folio, new_de);
+ if (unlikely(err))
+ goto out_dir;
nilfs_mark_inode_dirty(new_dir);
inode_set_ctime_current(new_inode);
if (dir_de)
@@ -430,28 +432,27 @@ static int nilfs_rename(struct mnt_idmap *idmap,
*/
inode_set_ctime_current(old_inode);
- nilfs_delete_entry(old_de, old_folio);
-
- if (dir_de) {
- nilfs_set_link(old_inode, dir_de, dir_folio, new_dir);
- folio_release_kmap(dir_folio, dir_de);
- drop_nlink(old_dir);
+ err = nilfs_delete_entry(old_de, old_folio);
+ if (likely(!err)) {
+ if (dir_de) {
+ err = nilfs_set_link(old_inode, dir_de, dir_folio,
+ new_dir);
+ drop_nlink(old_dir);
+ }
+ nilfs_mark_inode_dirty(old_dir);
}
- folio_release_kmap(old_folio, old_de);
-
- nilfs_mark_inode_dirty(old_dir);
nilfs_mark_inode_dirty(old_inode);
- err = nilfs_transaction_commit(old_dir->i_sb);
- return err;
-
out_dir:
if (dir_de)
folio_release_kmap(dir_folio, dir_de);
out_old:
folio_release_kmap(old_folio, old_de);
out:
- nilfs_transaction_abort(old_dir->i_sb);
+ if (likely(!err))
+ err = nilfs_transaction_commit(old_dir->i_sb);
+ else
+ nilfs_transaction_abort(old_dir->i_sb);
return err;
}
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index dff241c53fc5..cb6ed54accd7 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -261,8 +261,8 @@ struct nilfs_dir_entry *nilfs_find_entry(struct inode *, const struct qstr *,
int nilfs_delete_entry(struct nilfs_dir_entry *, struct folio *);
int nilfs_empty_dir(struct inode *);
struct nilfs_dir_entry *nilfs_dotdot(struct inode *, struct folio **);
-void nilfs_set_link(struct inode *, struct nilfs_dir_entry *,
- struct folio *, struct inode *);
+int nilfs_set_link(struct inode *dir, struct nilfs_dir_entry *de,
+ struct folio *folio, struct inode *inode);
/* file.c */
extern int nilfs_sync_file(struct file *, loff_t, loff_t, int);
diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index 6dd8b854cd1f..06f18fe86407 100644
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -392,6 +392,11 @@ void nilfs_clear_dirty_pages(struct address_space *mapping)
/**
* nilfs_clear_folio_dirty - discard dirty folio
* @folio: dirty folio that will be discarded
+ *
+ * nilfs_clear_folio_dirty() clears working states including dirty state for
+ * the folio and its buffers. If the folio has buffers, clear only if it is
+ * confirmed that none of the buffer heads are busy (none have valid
+ * references and none are locked).
*/
void nilfs_clear_folio_dirty(struct folio *folio)
{
@@ -399,10 +404,6 @@ void nilfs_clear_folio_dirty(struct folio *folio)
BUG_ON(!folio_test_locked(folio));
- folio_clear_uptodate(folio);
- folio_clear_mappedtodisk(folio);
- folio_clear_checked(folio);
-
head = folio_buffers(folio);
if (head) {
const unsigned long clear_bits =
@@ -410,6 +411,25 @@ void nilfs_clear_folio_dirty(struct folio *folio)
BIT(BH_Async_Write) | BIT(BH_NILFS_Volatile) |
BIT(BH_NILFS_Checked) | BIT(BH_NILFS_Redirected) |
BIT(BH_Delay));
+ bool busy, invalidated = false;
+
+recheck_buffers:
+ busy = false;
+ bh = head;
+ do {
+ if (atomic_read(&bh->b_count) | buffer_locked(bh)) {
+ busy = true;
+ break;
+ }
+ } while (bh = bh->b_this_page, bh != head);
+
+ if (busy) {
+ if (invalidated)
+ return;
+ invalidate_bh_lrus();
+ invalidated = true;
+ goto recheck_buffers;
+ }
bh = head;
do {
@@ -419,6 +439,9 @@ void nilfs_clear_folio_dirty(struct folio *folio)
} while (bh = bh->b_this_page, bh != head);
}
+ folio_clear_uptodate(folio);
+ folio_clear_mappedtodisk(folio);
+ folio_clear_checked(folio);
__nilfs_clear_folio_dirty(folio);
}
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index 587251830897..58a598b548fa 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -734,7 +734,6 @@ static size_t nilfs_lookup_dirty_data_buffers(struct inode *inode,
if (!head)
head = create_empty_buffers(folio,
i_blocksize(inode), 0);
- folio_unlock(folio);
bh = head;
do {
@@ -744,11 +743,14 @@ static size_t nilfs_lookup_dirty_data_buffers(struct inode *inode,
list_add_tail(&bh->b_assoc_buffers, listp);
ndirties++;
if (unlikely(ndirties >= nlimit)) {
+ folio_unlock(folio);
folio_batch_release(&fbatch);
cond_resched();
return ndirties;
}
} while (bh = bh->b_this_page, bh != head);
+
+ folio_unlock(folio);
}
folio_batch_release(&fbatch);
cond_resched();
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index ac03fd3c330c..ecd71c190885 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -693,8 +693,6 @@ int init_nilfs(struct the_nilfs *nilfs, struct super_block *sb)
int blocksize;
int err;
- down_write(&nilfs->ns_sem);
-
blocksize = sb_min_blocksize(sb, NILFS_MIN_BLOCK_SIZE);
if (!blocksize) {
nilfs_err(sb, "unable to set blocksize");
@@ -767,7 +765,6 @@ int init_nilfs(struct the_nilfs *nilfs, struct super_block *sb)
set_nilfs_init(nilfs);
err = 0;
out:
- up_write(&nilfs->ns_sem);
return err;
failed_sbh:
generated by cgit v1.2.3 (git 2.39.0) at 2025-08-29 09:12:07 +0300