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-rw-r--r--fs/ext4/acl.c11
-rw-r--r--fs/ext4/acl.h2
-rw-r--r--fs/ext4/balloc.c3
-rw-r--r--fs/ext4/dir.c56
-rw-r--r--fs/ext4/ext4.h93
-rw-r--r--fs/ext4/ext4_extents.h8
-rw-r--r--fs/ext4/ext4_jbd2.h2
-rw-r--r--fs/ext4/extents.c88
-rw-r--r--fs/ext4/file.c22
-rw-r--r--fs/ext4/fsync.c4
-rw-r--r--fs/ext4/ialloc.c2
-rw-r--r--fs/ext4/inode.c75
-rw-r--r--fs/ext4/mballoc.c55
-rw-r--r--fs/ext4/migrate.c2
-rw-r--r--fs/ext4/namei.c69
-rw-r--r--fs/ext4/page-io.c7
-rw-r--r--fs/ext4/resize.c69
-rw-r--r--fs/ext4/super.c297
-rw-r--r--fs/ext4/xattr.c28
19 files changed, 545 insertions, 348 deletions
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index 5e2ed4504ead..e0270d1f8d82 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -238,10 +238,17 @@ ext4_set_acl(handle_t *handle, struct inode *inode, int type,
}
int
-ext4_check_acl(struct inode *inode, int mask)
+ext4_check_acl(struct inode *inode, int mask, unsigned int flags)
{
- struct posix_acl *acl = ext4_get_acl(inode, ACL_TYPE_ACCESS);
+ struct posix_acl *acl;
+
+ if (flags & IPERM_FLAG_RCU) {
+ if (!negative_cached_acl(inode, ACL_TYPE_ACCESS))
+ return -ECHILD;
+ return -EAGAIN;
+ }
+ acl = ext4_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl) {
diff --git a/fs/ext4/acl.h b/fs/ext4/acl.h
index 9d843d5deac4..dec821168fd4 100644
--- a/fs/ext4/acl.h
+++ b/fs/ext4/acl.h
@@ -54,7 +54,7 @@ static inline int ext4_acl_count(size_t size)
#ifdef CONFIG_EXT4_FS_POSIX_ACL
/* acl.c */
-extern int ext4_check_acl(struct inode *, int);
+extern int ext4_check_acl(struct inode *, int, unsigned int);
extern int ext4_acl_chmod(struct inode *);
extern int ext4_init_acl(handle_t *, struct inode *, struct inode *);
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 14c3af26c671..adf96b822781 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -592,7 +592,8 @@ ext4_fsblk_t ext4_new_meta_blocks(handle_t *handle, struct inode *inode,
* Account for the allocated meta blocks. We will never
* fail EDQUOT for metdata, but we do account for it.
*/
- if (!(*errp) && EXT4_I(inode)->i_delalloc_reserved_flag) {
+ if (!(*errp) &&
+ ext4_test_inode_state(inode, EXT4_STATE_DELALLOC_RESERVED)) {
spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
EXT4_I(inode)->i_allocated_meta_blocks += ar.len;
spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index ece76fb6a40c..164c56092e58 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -60,9 +60,13 @@ static unsigned char get_dtype(struct super_block *sb, int filetype)
return (ext4_filetype_table[filetype]);
}
-
+/*
+ * Return 0 if the directory entry is OK, and 1 if there is a problem
+ *
+ * Note: this is the opposite of what ext2 and ext3 historically returned...
+ */
int __ext4_check_dir_entry(const char *function, unsigned int line,
- struct inode *dir,
+ struct inode *dir, struct file *filp,
struct ext4_dir_entry_2 *de,
struct buffer_head *bh,
unsigned int offset)
@@ -71,26 +75,37 @@ int __ext4_check_dir_entry(const char *function, unsigned int line,
const int rlen = ext4_rec_len_from_disk(de->rec_len,
dir->i_sb->s_blocksize);
- if (rlen < EXT4_DIR_REC_LEN(1))
+ if (unlikely(rlen < EXT4_DIR_REC_LEN(1)))
error_msg = "rec_len is smaller than minimal";
- else if (rlen % 4 != 0)
+ else if (unlikely(rlen % 4 != 0))
error_msg = "rec_len % 4 != 0";
- else if (rlen < EXT4_DIR_REC_LEN(de->name_len))
+ else if (unlikely(rlen < EXT4_DIR_REC_LEN(de->name_len)))
error_msg = "rec_len is too small for name_len";
- else if (((char *) de - bh->b_data) + rlen > dir->i_sb->s_blocksize)
+ else if (unlikely(((char *) de - bh->b_data) + rlen >
+ dir->i_sb->s_blocksize))
error_msg = "directory entry across blocks";
- else if (le32_to_cpu(de->inode) >
- le32_to_cpu(EXT4_SB(dir->i_sb)->s_es->s_inodes_count))
+ else if (unlikely(le32_to_cpu(de->inode) >
+ le32_to_cpu(EXT4_SB(dir->i_sb)->s_es->s_inodes_count)))
error_msg = "inode out of bounds";
+ else
+ return 0;
- if (error_msg != NULL)
- ext4_error_inode(dir, function, line, bh->b_blocknr,
- "bad entry in directory: %s - "
- "offset=%u(%u), inode=%u, rec_len=%d, name_len=%d",
- error_msg, (unsigned) (offset%bh->b_size), offset,
- le32_to_cpu(de->inode),
- rlen, de->name_len);
- return error_msg == NULL ? 1 : 0;
+ if (filp)
+ ext4_error_file(filp, function, line, bh ? bh->b_blocknr : 0,
+ "bad entry in directory: %s - offset=%u(%u), "
+ "inode=%u, rec_len=%d, name_len=%d",
+ error_msg, (unsigned) (offset%bh->b_size),
+ offset, le32_to_cpu(de->inode),
+ rlen, de->name_len);
+ else
+ ext4_error_inode(dir, function, line, bh ? bh->b_blocknr : 0,
+ "bad entry in directory: %s - offset=%u(%u), "
+ "inode=%u, rec_len=%d, name_len=%d",
+ error_msg, (unsigned) (offset%bh->b_size),
+ offset, le32_to_cpu(de->inode),
+ rlen, de->name_len);
+
+ return 1;
}
static int ext4_readdir(struct file *filp,
@@ -152,8 +167,9 @@ static int ext4_readdir(struct file *filp,
*/
if (!bh) {
if (!dir_has_error) {
- EXT4_ERROR_INODE(inode, "directory "
- "contains a hole at offset %Lu",
+ EXT4_ERROR_FILE(filp, 0,
+ "directory contains a "
+ "hole at offset %llu",
(unsigned long long) filp->f_pos);
dir_has_error = 1;
}
@@ -194,8 +210,8 @@ revalidate:
while (!error && filp->f_pos < inode->i_size
&& offset < sb->s_blocksize) {
de = (struct ext4_dir_entry_2 *) (bh->b_data + offset);
- if (!ext4_check_dir_entry(inode, de,
- bh, offset)) {
+ if (ext4_check_dir_entry(inode, filp, de,
+ bh, offset)) {
/*
* On error, skip the f_pos to the next block
*/
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 1f253a9a141d..1de65f572033 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -62,8 +62,8 @@
#define EXT4_ERROR_INODE_BLOCK(inode, block, fmt, a...) \
ext4_error_inode((inode), __func__, __LINE__, (block), (fmt), ## a)
-#define EXT4_ERROR_FILE(file, fmt, a...) \
- ext4_error_file(__func__, __LINE__, (file), (fmt), ## a)
+#define EXT4_ERROR_FILE(file, block, fmt, a...) \
+ ext4_error_file((file), __func__, __LINE__, (block), (fmt), ## a)
/* data type for block offset of block group */
typedef int ext4_grpblk_t;
@@ -561,22 +561,6 @@ struct ext4_new_group_data {
#define EXT4_IOC32_SETVERSION_OLD FS_IOC32_SETVERSION
#endif
-
-/*
- * Mount options
- */
-struct ext4_mount_options {
- unsigned long s_mount_opt;
- uid_t s_resuid;
- gid_t s_resgid;
- unsigned long s_commit_interval;
- u32 s_min_batch_time, s_max_batch_time;
-#ifdef CONFIG_QUOTA
- int s_jquota_fmt;
- char *s_qf_names[MAXQUOTAS];
-#endif
-};
-
/* Max physical block we can address w/o extents */
#define EXT4_MAX_BLOCK_FILE_PHYS 0xFFFFFFFF
@@ -709,6 +693,8 @@ do { \
if (EXT4_FITS_IN_INODE(raw_inode, EXT4_I(inode), xtime ## _extra)) \
ext4_decode_extra_time(&(inode)->xtime, \
raw_inode->xtime ## _extra); \
+ else \
+ (inode)->xtime.tv_nsec = 0; \
} while (0)
#define EXT4_EINODE_GET_XTIME(xtime, einode, raw_inode) \
@@ -719,6 +705,8 @@ do { \
if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime ## _extra)) \
ext4_decode_extra_time(&(einode)->xtime, \
raw_inode->xtime ## _extra); \
+ else \
+ (einode)->xtime.tv_nsec = 0; \
} while (0)
#define i_disk_version osd1.linux1.l_i_version
@@ -750,12 +738,13 @@ do { \
/*
* storage for cached extent
+ * If ec_len == 0, then the cache is invalid.
+ * If ec_start == 0, then the cache represents a gap (null mapping)
*/
struct ext4_ext_cache {
ext4_fsblk_t ec_start;
ext4_lblk_t ec_block;
__u32 ec_len; /* must be 32bit to return holes */
- __u32 ec_type;
};
/*
@@ -774,10 +763,12 @@ struct ext4_inode_info {
* near to their parent directory's inode.
*/
ext4_group_t i_block_group;
+ ext4_lblk_t i_dir_start_lookup;
+#if (BITS_PER_LONG < 64)
unsigned long i_state_flags; /* Dynamic state flags */
+#endif
unsigned long i_flags;
- ext4_lblk_t i_dir_start_lookup;
#ifdef CONFIG_EXT4_FS_XATTR
/*
* Extended attributes can be read independently of the main file
@@ -820,7 +811,7 @@ struct ext4_inode_info {
*/
struct rw_semaphore i_data_sem;
struct inode vfs_inode;
- struct jbd2_inode jinode;
+ struct jbd2_inode *jinode;
struct ext4_ext_cache i_cached_extent;
/*
@@ -840,14 +831,12 @@ struct ext4_inode_info {
unsigned int i_reserved_data_blocks;
unsigned int i_reserved_meta_blocks;
unsigned int i_allocated_meta_blocks;
- unsigned short i_delalloc_reserved_flag;
- sector_t i_da_metadata_calc_last_lblock;
+ ext4_lblk_t i_da_metadata_calc_last_lblock;
int i_da_metadata_calc_len;
/* on-disk additional length */
__u16 i_extra_isize;
- spinlock_t i_block_reservation_lock;
#ifdef CONFIG_QUOTA
/* quota space reservation, managed internally by quota code */
qsize_t i_reserved_quota;
@@ -856,9 +845,11 @@ struct ext4_inode_info {
/* completed IOs that might need unwritten extents handling */
struct list_head i_completed_io_list;
spinlock_t i_completed_io_lock;
+ atomic_t i_ioend_count; /* Number of outstanding io_end structs */
/* current io_end structure for async DIO write*/
ext4_io_end_t *cur_aio_dio;
- atomic_t i_ioend_count; /* Number of outstanding io_end structs */
+
+ spinlock_t i_block_reservation_lock;
/*
* Transactions that contain inode's metadata needed to complete
@@ -917,11 +908,20 @@ struct ext4_inode_info {
#define EXT4_MOUNT_DISCARD 0x40000000 /* Issue DISCARD requests */
#define EXT4_MOUNT_INIT_INODE_TABLE 0x80000000 /* Initialize uninitialized itables */
-#define clear_opt(o, opt) o &= ~EXT4_MOUNT_##opt
-#define set_opt(o, opt) o |= EXT4_MOUNT_##opt
+#define clear_opt(sb, opt) EXT4_SB(sb)->s_mount_opt &= \
+ ~EXT4_MOUNT_##opt
+#define set_opt(sb, opt) EXT4_SB(sb)->s_mount_opt |= \
+ EXT4_MOUNT_##opt
#define test_opt(sb, opt) (EXT4_SB(sb)->s_mount_opt & \
EXT4_MOUNT_##opt)
+#define clear_opt2(sb, opt) EXT4_SB(sb)->s_mount_opt2 &= \
+ ~EXT4_MOUNT2_##opt
+#define set_opt2(sb, opt) EXT4_SB(sb)->s_mount_opt2 |= \
+ EXT4_MOUNT2_##opt
+#define test_opt2(sb, opt) (EXT4_SB(sb)->s_mount_opt2 & \
+ EXT4_MOUNT2_##opt)
+
#define ext4_set_bit ext2_set_bit
#define ext4_set_bit_atomic ext2_set_bit_atomic
#define ext4_clear_bit ext2_clear_bit
@@ -1087,6 +1087,7 @@ struct ext4_sb_info {
struct ext4_super_block *s_es; /* Pointer to the super block in the buffer */
struct buffer_head **s_group_desc;
unsigned int s_mount_opt;
+ unsigned int s_mount_opt2;
unsigned int s_mount_flags;
ext4_fsblk_t s_sb_block;
uid_t s_resuid;
@@ -1237,24 +1238,39 @@ enum {
EXT4_STATE_EXT_MIGRATE, /* Inode is migrating */
EXT4_STATE_DIO_UNWRITTEN, /* need convert on dio done*/
EXT4_STATE_NEWENTRY, /* File just added to dir */
+ EXT4_STATE_DELALLOC_RESERVED, /* blks already reserved for delalloc */
};
-#define EXT4_INODE_BIT_FNS(name, field) \
+#define EXT4_INODE_BIT_FNS(name, field, offset) \
static inline int ext4_test_inode_##name(struct inode *inode, int bit) \
{ \
- return test_bit(bit, &EXT4_I(inode)->i_##field); \
+ return test_bit(bit + (offset), &EXT4_I(inode)->i_##field); \
} \
static inline void ext4_set_inode_##name(struct inode *inode, int bit) \
{ \
- set_bit(bit, &EXT4_I(inode)->i_##field); \
+ set_bit(bit + (offset), &EXT4_I(inode)->i_##field); \
} \
static inline void ext4_clear_inode_##name(struct inode *inode, int bit) \
{ \
- clear_bit(bit, &EXT4_I(inode)->i_##field); \
+ clear_bit(bit + (offset), &EXT4_I(inode)->i_##field); \
}
-EXT4_INODE_BIT_FNS(flag, flags)
-EXT4_INODE_BIT_FNS(state, state_flags)
+EXT4_INODE_BIT_FNS(flag, flags, 0)
+#if (BITS_PER_LONG < 64)
+EXT4_INODE_BIT_FNS(state, state_flags, 0)
+
+static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
+{
+ (ei)->i_state_flags = 0;
+}
+#else
+EXT4_INODE_BIT_FNS(state, flags, 32)
+
+static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
+{
+ /* We depend on the fact that callers will set i_flags */
+}
+#endif
#else
/* Assume that user mode programs are passing in an ext4fs superblock, not
* a kernel struct super_block. This will allow us to call the feature-test
@@ -1642,10 +1658,12 @@ extern unsigned ext4_init_block_bitmap(struct super_block *sb,
/* dir.c */
extern int __ext4_check_dir_entry(const char *, unsigned int, struct inode *,
+ struct file *,
struct ext4_dir_entry_2 *,
struct buffer_head *, unsigned int);
-#define ext4_check_dir_entry(dir, de, bh, offset) \
- __ext4_check_dir_entry(__func__, __LINE__, (dir), (de), (bh), (offset))
+#define ext4_check_dir_entry(dir, filp, de, bh, offset) \
+ unlikely(__ext4_check_dir_entry(__func__, __LINE__, (dir), (filp), \
+ (de), (bh), (offset)))
extern int ext4_htree_store_dirent(struct file *dir_file, __u32 hash,
__u32 minor_hash,
struct ext4_dir_entry_2 *dirent);
@@ -1653,6 +1671,7 @@ extern void ext4_htree_free_dir_info(struct dir_private_info *p);
/* fsync.c */
extern int ext4_sync_file(struct file *, int);
+extern int ext4_flush_completed_IO(struct inode *);
/* hash.c */
extern int ext4fs_dirhash(const char *name, int len, struct
@@ -1752,8 +1771,8 @@ extern void ext4_error_inode(struct inode *, const char *, unsigned int,
ext4_fsblk_t, const char *, ...)
__attribute__ ((format (printf, 5, 6)));
extern void ext4_error_file(struct file *, const char *, unsigned int,
- const char *, ...)
- __attribute__ ((format (printf, 4, 5)));
+ ext4_fsblk_t, const char *, ...)
+ __attribute__ ((format (printf, 5, 6)));
extern void __ext4_std_error(struct super_block *, const char *,
unsigned int, int);
extern void __ext4_abort(struct super_block *, const char *, unsigned int,
diff --git a/fs/ext4/ext4_extents.h b/fs/ext4/ext4_extents.h
index 28ce70fd9cd0..2e29abb30f76 100644
--- a/fs/ext4/ext4_extents.h
+++ b/fs/ext4/ext4_extents.h
@@ -119,10 +119,6 @@ struct ext4_ext_path {
* structure for external API
*/
-#define EXT4_EXT_CACHE_NO 0
-#define EXT4_EXT_CACHE_GAP 1
-#define EXT4_EXT_CACHE_EXTENT 2
-
/*
* to be called by ext4_ext_walk_space()
* negative retcode - error
@@ -197,7 +193,7 @@ static inline unsigned short ext_depth(struct inode *inode)
static inline void
ext4_ext_invalidate_cache(struct inode *inode)
{
- EXT4_I(inode)->i_cached_extent.ec_type = EXT4_EXT_CACHE_NO;
+ EXT4_I(inode)->i_cached_extent.ec_len = 0;
}
static inline void ext4_ext_mark_uninitialized(struct ext4_extent *ext)
@@ -278,7 +274,7 @@ static inline void ext4_idx_store_pblock(struct ext4_extent_idx *ix,
}
extern int ext4_ext_calc_metadata_amount(struct inode *inode,
- sector_t lblocks);
+ ext4_lblk_t lblocks);
extern int ext4_extent_tree_init(handle_t *, struct inode *);
extern int ext4_ext_calc_credits_for_single_extent(struct inode *inode,
int num,
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
index b0bd792c58c5..d8b992e658c1 100644
--- a/fs/ext4/ext4_jbd2.h
+++ b/fs/ext4/ext4_jbd2.h
@@ -253,7 +253,7 @@ static inline int ext4_journal_force_commit(journal_t *journal)
static inline int ext4_jbd2_file_inode(handle_t *handle, struct inode *inode)
{
if (ext4_handle_valid(handle))
- return jbd2_journal_file_inode(handle, &EXT4_I(inode)->jinode);
+ return jbd2_journal_file_inode(handle, EXT4_I(inode)->jinode);
return 0;
}
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 966ecb0d8f86..d202d765dad2 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -117,11 +117,33 @@ static ext4_fsblk_t ext4_ext_find_goal(struct inode *inode,
struct ext4_extent *ex;
depth = path->p_depth;
- /* try to predict block placement */
+ /*
+ * Try to predict block placement assuming that we are
+ * filling in a file which will eventually be
+ * non-sparse --- i.e., in the case of libbfd writing
+ * an ELF object sections out-of-order but in a way
+ * the eventually results in a contiguous object or
+ * executable file, or some database extending a table
+ * space file. However, this is actually somewhat
+ * non-ideal if we are writing a sparse file such as
+ * qemu or KVM writing a raw image file that is going
+ * to stay fairly sparse, since it will end up
+ * fragmenting the file system's free space. Maybe we
+ * should have some hueristics or some way to allow
+ * userspace to pass a hint to file system,
+ * especiially if the latter case turns out to be
+ * common.
+ */
ex = path[depth].p_ext;
- if (ex)
- return (ext4_ext_pblock(ex) +
- (block - le32_to_cpu(ex->ee_block)));
+ if (ex) {
+ ext4_fsblk_t ext_pblk = ext4_ext_pblock(ex);
+ ext4_lblk_t ext_block = le32_to_cpu(ex->ee_block);
+
+ if (block > ext_block)
+ return ext_pblk + (block - ext_block);
+ else
+ return ext_pblk - (ext_block - block);
+ }
/* it looks like index is empty;
* try to find starting block from index itself */
@@ -244,7 +266,7 @@ static inline int ext4_ext_space_root_idx(struct inode *inode, int check)
* to allocate @blocks
* Worse case is one block per extent
*/
-int ext4_ext_calc_metadata_amount(struct inode *inode, sector_t lblock)
+int ext4_ext_calc_metadata_amount(struct inode *inode, ext4_lblk_t lblock)
{
struct ext4_inode_info *ei = EXT4_I(inode);
int idxs, num = 0;
@@ -1872,12 +1894,10 @@ static int ext4_ext_walk_space(struct inode *inode, ext4_lblk_t block,
cbex.ec_block = start;
cbex.ec_len = end - start;
cbex.ec_start = 0;
- cbex.ec_type = EXT4_EXT_CACHE_GAP;
} else {
cbex.ec_block = le32_to_cpu(ex->ee_block);
cbex.ec_len = ext4_ext_get_actual_len(ex);
cbex.ec_start = ext4_ext_pblock(ex);
- cbex.ec_type = EXT4_EXT_CACHE_EXTENT;
}
if (unlikely(cbex.ec_len == 0)) {
@@ -1917,13 +1937,12 @@ static int ext4_ext_walk_space(struct inode *inode, ext4_lblk_t block,
static void
ext4_ext_put_in_cache(struct inode *inode, ext4_lblk_t block,
- __u32 len, ext4_fsblk_t start, int type)
+ __u32 len, ext4_fsblk_t start)
{
struct ext4_ext_cache *cex;
BUG_ON(len == 0);
spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
cex = &EXT4_I(inode)->i_cached_extent;
- cex->ec_type = type;
cex->ec_block = block;
cex->ec_len = len;
cex->ec_start = start;
@@ -1976,15 +1995,18 @@ ext4_ext_put_gap_in_cache(struct inode *inode, struct ext4_ext_path *path,
}
ext_debug(" -> %u:%lu\n", lblock, len);
- ext4_ext_put_in_cache(inode, lblock, len, 0, EXT4_EXT_CACHE_GAP);
+ ext4_ext_put_in_cache(inode, lblock, len, 0);
}
+/*
+ * Return 0 if cache is invalid; 1 if the cache is valid
+ */
static int
ext4_ext_in_cache(struct inode *inode, ext4_lblk_t block,
struct ext4_extent *ex)
{
struct ext4_ext_cache *cex;
- int ret = EXT4_EXT_CACHE_NO;
+ int ret = 0;
/*
* We borrow i_block_reservation_lock to protect i_cached_extent
@@ -1993,11 +2015,9 @@ ext4_ext_in_cache(struct inode *inode, ext4_lblk_t block,
cex = &EXT4_I(inode)->i_cached_extent;
/* has cache valid data? */
- if (cex->ec_type == EXT4_EXT_CACHE_NO)
+ if (cex->ec_len == 0)
goto errout;
- BUG_ON(cex->ec_type != EXT4_EXT_CACHE_GAP &&
- cex->ec_type != EXT4_EXT_CACHE_EXTENT);
if (in_range(block, cex->ec_block, cex->ec_len)) {
ex->ee_block = cpu_to_le32(cex->ec_block);
ext4_ext_store_pblock(ex, cex->ec_start);
@@ -2005,7 +2025,7 @@ ext4_ext_in_cache(struct inode *inode, ext4_lblk_t block,
ext_debug("%u cached by %u:%u:%llu\n",
block,
cex->ec_block, cex->ec_len, cex->ec_start);
- ret = cex->ec_type;
+ ret = 1;
}
errout:
spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
@@ -3082,7 +3102,7 @@ static void unmap_underlying_metadata_blocks(struct block_device *bdev,
* Handle EOFBLOCKS_FL flag, clearing it if necessary
*/
static int check_eofblocks_fl(handle_t *handle, struct inode *inode,
- struct ext4_map_blocks *map,
+ ext4_lblk_t lblk,
struct ext4_ext_path *path,
unsigned int len)
{
@@ -3112,7 +3132,7 @@ static int check_eofblocks_fl(handle_t *handle, struct inode *inode,
* this turns out to be false, we can bail out from this
* function immediately.
*/
- if (map->m_lblk + len < le32_to_cpu(last_ex->ee_block) +
+ if (lblk + len < le32_to_cpu(last_ex->ee_block) +
ext4_ext_get_actual_len(last_ex))
return 0;
/*
@@ -3168,8 +3188,8 @@ ext4_ext_handle_uninitialized_extents(handle_t *handle, struct inode *inode,
path);
if (ret >= 0) {
ext4_update_inode_fsync_trans(handle, inode, 1);
- err = check_eofblocks_fl(handle, inode, map, path,
- map->m_len);
+ err = check_eofblocks_fl(handle, inode, map->m_lblk,
+ path, map->m_len);
} else
err = ret;
goto out2;
@@ -3199,7 +3219,8 @@ ext4_ext_handle_uninitialized_extents(handle_t *handle, struct inode *inode,
ret = ext4_ext_convert_to_initialized(handle, inode, map, path);
if (ret >= 0) {
ext4_update_inode_fsync_trans(handle, inode, 1);
- err = check_eofblocks_fl(handle, inode, map, path, map->m_len);
+ err = check_eofblocks_fl(handle, inode, map->m_lblk, path,
+ map->m_len);
if (err < 0)
goto out2;
}
@@ -3276,7 +3297,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
struct ext4_extent_header *eh;
struct ext4_extent newex, *ex;
ext4_fsblk_t newblock;
- int err = 0, depth, ret, cache_type;
+ int err = 0, depth, ret;
unsigned int allocated = 0;
struct ext4_allocation_request ar;
ext4_io_end_t *io = EXT4_I(inode)->cur_aio_dio;
@@ -3285,9 +3306,8 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
map->m_lblk, map->m_len, inode->i_ino);
/* check in cache */
- cache_type = ext4_ext_in_cache(inode, map->m_lblk, &newex);
- if (cache_type) {
- if (cache_type == EXT4_EXT_CACHE_GAP) {
+ if (ext4_ext_in_cache(inode, map->m_lblk, &newex)) {
+ if (!newex.ee_start_lo && !newex.ee_start_hi) {
if ((flags & EXT4_GET_BLOCKS_CREATE) == 0) {
/*
* block isn't allocated yet and
@@ -3296,7 +3316,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
goto out2;
}
/* we should allocate requested block */
- } else if (cache_type == EXT4_EXT_CACHE_EXTENT) {
+ } else {
/* block is already allocated */
newblock = map->m_lblk
- le32_to_cpu(newex.ee_block)
@@ -3305,8 +3325,6 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
allocated = ext4_ext_get_actual_len(&newex) -
(map->m_lblk - le32_to_cpu(newex.ee_block));
goto out;
- } else {
- BUG();
}
}
@@ -3357,8 +3375,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
/* Do not put uninitialized extent in the cache */
if (!ext4_ext_is_uninitialized(ex)) {
ext4_ext_put_in_cache(inode, ee_block,
- ee_len, ee_start,
- EXT4_EXT_CACHE_EXTENT);
+ ee_len, ee_start);
goto out;
}
ret = ext4_ext_handle_uninitialized_extents(handle,
@@ -3456,7 +3473,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
map->m_flags |= EXT4_MAP_UNINIT;
}
- err = check_eofblocks_fl(handle, inode, map, path, ar.len);
+ err = check_eofblocks_fl(handle, inode, map->m_lblk, path, ar.len);
if (err)
goto out2;
@@ -3490,8 +3507,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
* when it is _not_ an uninitialized extent.
*/
if ((flags & EXT4_GET_BLOCKS_UNINIT_EXT) == 0) {
- ext4_ext_put_in_cache(inode, map->m_lblk, allocated, newblock,
- EXT4_EXT_CACHE_EXTENT);
+ ext4_ext_put_in_cache(inode, map->m_lblk, allocated, newblock);
ext4_update_inode_fsync_trans(handle, inode, 1);
} else
ext4_update_inode_fsync_trans(handle, inode, 0);
@@ -3519,6 +3535,12 @@ void ext4_ext_truncate(struct inode *inode)
int err = 0;
/*
+ * finish any pending end_io work so we won't run the risk of
+ * converting any truncated blocks to initialized later
+ */
+ ext4_flush_completed_IO(inode);
+
+ /*
* probably first extent we're gonna free will be last in block
*/
err = ext4_writepage_trans_blocks(inode);
@@ -3767,7 +3789,7 @@ static int ext4_ext_fiemap_cb(struct inode *inode, struct ext4_ext_path *path,
logical = (__u64)newex->ec_block << blksize_bits;
- if (newex->ec_type == EXT4_EXT_CACHE_GAP) {
+ if (newex->ec_start == 0) {
pgoff_t offset;
struct page *page;
struct buffer_head *bh = NULL;
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 5a5c55ddceef..bb003dc9ffff 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -104,6 +104,7 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
{
struct super_block *sb = inode->i_sb;
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+ struct ext4_inode_info *ei = EXT4_I(inode);
struct vfsmount *mnt = filp->f_path.mnt;
struct path path;
char buf[64], *cp;
@@ -127,6 +128,27 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
ext4_mark_super_dirty(sb);
}
}
+ /*
+ * Set up the jbd2_inode if we are opening the inode for
+ * writing and the journal is present
+ */
+ if (sbi->s_journal && !ei->jinode && (filp->f_mode & FMODE_WRITE)) {
+ struct jbd2_inode *jinode = jbd2_alloc_inode(GFP_KERNEL);
+
+ spin_lock(&inode->i_lock);
+ if (!ei->jinode) {
+ if (!jinode) {
+ spin_unlock(&inode->i_lock);
+ return -ENOMEM;
+ }
+ ei->jinode = jinode;
+ jbd2_journal_init_jbd_inode(ei->jinode, inode);
+ jinode = NULL;
+ }
+ spin_unlock(&inode->i_lock);
+ if (unlikely(jinode != NULL))
+ jbd2_free_inode(jinode);
+ }
return dquot_file_open(inode, filp);
}
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
index c1a7bc923cf6..7829b287822a 100644
--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -75,7 +75,7 @@ static void dump_completed_IO(struct inode * inode)
* to written.
* The function return the number of pending IOs on success.
*/
-static int flush_completed_IO(struct inode *inode)
+extern int ext4_flush_completed_IO(struct inode *inode)
{
ext4_io_end_t *io;
struct ext4_inode_info *ei = EXT4_I(inode);
@@ -169,7 +169,7 @@ int ext4_sync_file(struct file *file, int datasync)
if (inode->i_sb->s_flags & MS_RDONLY)
return 0;
- ret = flush_completed_IO(inode);
+ ret = ext4_flush_completed_IO(inode);
if (ret < 0)
return ret;
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 1ce240a23ebb..eb9097aec6f0 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -1027,7 +1027,7 @@ got:
inode->i_generation = sbi->s_next_generation++;
spin_unlock(&sbi->s_next_gen_lock);
- ei->i_state_flags = 0;
+ ext4_clear_state_flags(ei); /* Only relevant on 32-bit archs */
ext4_set_inode_state(inode, EXT4_STATE_NEW);
ei->i_extra_isize = EXT4_SB(sb)->s_want_extra_isize;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index ef9d5be0b2a8..9f7f9e49914f 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -39,7 +39,9 @@
#include <linux/bio.h>
#include <linux/workqueue.h>
#include <linux/kernel.h>
+#include <linux/printk.h>
#include <linux/slab.h>
+#include <linux/ratelimit.h>
#include "ext4_jbd2.h"
#include "xattr.h"
@@ -54,10 +56,17 @@ static inline int ext4_begin_ordered_truncate(struct inode *inode,
loff_t new_size)
{
trace_ext4_begin_ordered_truncate(inode, new_size);
- return jbd2_journal_begin_ordered_truncate(
- EXT4_SB(inode->i_sb)->s_journal,
- &EXT4_I(inode)->jinode,
- new_size);
+ /*
+ * If jinode is zero, then we never opened the file for
+ * writing, so there's no need to call
+ * jbd2_journal_begin_ordered_truncate() since there's no
+ * outstanding writes we need to flush.
+ */
+ if (!EXT4_I(inode)->jinode)
+ return 0;
+ return jbd2_journal_begin_ordered_truncate(EXT4_JOURNAL(inode),
+ EXT4_I(inode)->jinode,
+ new_size);
}
static void ext4_invalidatepage(struct page *page, unsigned long offset);
@@ -552,7 +561,7 @@ static ext4_fsblk_t ext4_find_goal(struct inode *inode, ext4_lblk_t block,
}
/**
- * ext4_blks_to_allocate: Look up the block map and count the number
+ * ext4_blks_to_allocate - Look up the block map and count the number
* of direct blocks need to be allocated for the given branch.
*
* @branch: chain of indirect blocks
@@ -591,13 +600,19 @@ static int ext4_blks_to_allocate(Indirect *branch, int k, unsigned int blks,
/**
* ext4_alloc_blocks: multiple allocate blocks needed for a branch
+ * @handle: handle for this transaction
+ * @inode: inode which needs allocated blocks
+ * @iblock: the logical block to start allocated at
+ * @goal: preferred physical block of allocation
* @indirect_blks: the number of blocks need to allocate for indirect
* blocks
- *
+ * @blks: number of desired blocks
* @new_blocks: on return it will store the new block numbers for
* the indirect blocks(if needed) and the first direct block,
- * @blks: on return it will store the total number of allocated
- * direct blocks
+ * @err: on return it will store the error code
+ *
+ * This function will return the number of blocks allocated as
+ * requested by the passed-in parameters.
*/
static int ext4_alloc_blocks(handle_t *handle, struct inode *inode,
ext4_lblk_t iblock, ext4_fsblk_t goal,
@@ -711,9 +726,11 @@ failed_out:
/**
* ext4_alloc_branch - allocate and set up a chain of blocks.
+ * @handle: handle for this transaction
* @inode: owner
* @indirect_blks: number of allocated indirect blocks
* @blks: number of allocated direct blocks
+ * @goal: preferred place for allocation
* @offsets: offsets (in the blocks) to store the pointers to next.
* @branch: place to store the chain in.
*
@@ -826,6 +843,7 @@ failed:
/**
* ext4_splice_branch - splice the allocated branch onto inode.
+ * @handle: handle for this transaction
* @inode: owner
* @block: (logical) number of block we are adding
* @chain: chain of indirect blocks (with a missing link - see
@@ -1081,7 +1099,7 @@ static int ext4_indirect_calc_metadata_amount(struct inode *inode,
* Calculate the number of metadata blocks need to reserve
* to allocate a block located at @lblock
*/
-static int ext4_calc_metadata_amount(struct inode *inode, sector_t lblock)
+static int ext4_calc_metadata_amount(struct inode *inode, ext4_lblk_t lblock)
{
if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))
return ext4_ext_calc_metadata_amount(inode, lblock);
@@ -1320,7 +1338,7 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
* avoid double accounting
*/
if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE)
- EXT4_I(inode)->i_delalloc_reserved_flag = 1;
+ ext4_set_inode_state(inode, EXT4_STATE_DELALLOC_RESERVED);
/*
* We need to check for EXT4 here because migrate
* could have changed the inode type in between
@@ -1350,7 +1368,7 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
ext4_da_update_reserve_space(inode, retval, 1);
}
if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE)
- EXT4_I(inode)->i_delalloc_reserved_flag = 0;
+ ext4_clear_inode_state(inode, EXT4_STATE_DELALLOC_RESERVED);
up_write((&EXT4_I(inode)->i_data_sem));
if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
@@ -1878,7 +1896,7 @@ static int ext4_journalled_write_end(struct file *file,
/*
* Reserve a single block located at lblock
*/
-static int ext4_da_reserve_space(struct inode *inode, sector_t lblock)
+static int ext4_da_reserve_space(struct inode *inode, ext4_lblk_t lblock)
{
int retries = 0;
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
@@ -2239,7 +2257,7 @@ static void mpage_da_map_and_submit(struct mpage_da_data *mpd)
* affects functions in many different parts of the allocation
* call path. This flag exists primarily because we don't
* want to change *many* call functions, so ext4_map_blocks()
- * will set the magic i_delalloc_reserved_flag once the
+ * will set the EXT4_STATE_DELALLOC_RESERVED flag once the
* inode's allocation semaphore is taken.
*
* If the blocks in questions were delalloc blocks, set
@@ -3720,8 +3738,7 @@ static int ext4_set_bh_endio(struct buffer_head *bh, struct inode *inode)
retry:
io_end = ext4_init_io_end(inode, GFP_ATOMIC);
if (!io_end) {
- if (printk_ratelimit())
- printk(KERN_WARNING "%s: allocation fail\n", __func__);
+ pr_warn_ratelimited("%s: allocation fail\n", __func__);
schedule();
goto retry;
}
@@ -4045,7 +4062,7 @@ int ext4_block_truncate_page(handle_t *handle,
if (ext4_should_journal_data(inode)) {
err = ext4_handle_dirty_metadata(handle, inode, bh);
} else {
- if (ext4_should_order_data(inode))
+ if (ext4_should_order_data(inode) && EXT4_I(inode)->jinode)
err = ext4_jbd2_file_inode(handle, inode);
mark_buffer_dirty(bh);
}
@@ -4169,6 +4186,7 @@ static int ext4_clear_blocks(handle_t *handle, struct inode *inode,
{
__le32 *p;
int flags = EXT4_FREE_BLOCKS_FORGET | EXT4_FREE_BLOCKS_VALIDATED;
+ int err;
if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))
flags |= EXT4_FREE_BLOCKS_METADATA;
@@ -4184,11 +4202,23 @@ static int ext4_clear_blocks(handle_t *handle, struct inode *inode,
if (try_to_extend_transaction(handle, inode)) {
if (bh) {
BUFFER_TRACE(bh, "call ext4_handle_dirty_metadata");
- ext4_handle_dirty_metadata(handle, inode, bh);
+ err = ext4_handle_dirty_metadata(handle, inode, bh);
+ if (unlikely(err)) {
+ ext4_std_error(inode->i_sb, err);
+ return 1;
+ }
+ }
+ err = ext4_mark_inode_dirty(handle, inode);
+ if (unlikely(err)) {
+ ext4_std_error(inode->i_sb, err);
+ return 1;
+ }
+ err = ext4_truncate_restart_trans(handle, inode,
+ blocks_for_truncate(inode));
+ if (unlikely(err)) {
+ ext4_std_error(inode->i_sb, err);
+ return 1;
}
- ext4_mark_inode_dirty(handle, inode);
- ext4_truncate_restart_trans(handle, inode,
- blocks_for_truncate(inode));
if (bh) {
BUFFER_TRACE(bh, "retaking write access");
ext4_journal_get_write_access(handle, bh);
@@ -4349,6 +4379,7 @@ static void ext4_free_branches(handle_t *handle, struct inode *inode,
(__le32 *) bh->b_data,
(__le32 *) bh->b_data + addr_per_block,
depth);
+ brelse(bh);
/*
* Everything below this this pointer has been
@@ -4859,7 +4890,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
}
inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
- ei->i_state_flags = 0;
+ ext4_clear_state_flags(ei); /* Only relevant on 32-bit archs */
ei->i_dir_start_lookup = 0;
ei->i_dtime = le32_to_cpu(raw_inode->i_dtime);
/* We now have enough fields to check if the inode was active or not.
@@ -5118,7 +5149,7 @@ static int ext4_do_update_inode(handle_t *handle,
if (ext4_inode_blocks_set(handle, raw_inode, ei))
goto out_brelse;
raw_inode->i_dtime = cpu_to_le32(ei->i_dtime);
- raw_inode->i_flags = cpu_to_le32(ei->i_flags);
+ raw_inode->i_flags = cpu_to_le32(ei->i_flags & 0xFFFFFFFF);
if (EXT4_SB(inode->i_sb)->s_es->s_creator_os !=
cpu_to_le32(EXT4_OS_HURD))
raw_inode->i_file_acl_high =
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 5b4d4e3a4d58..851f49b2f9d2 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2608,18 +2608,12 @@ int ext4_mb_release(struct super_block *sb)
static inline int ext4_issue_discard(struct super_block *sb,
ext4_group_t block_group, ext4_grpblk_t block, int count)
{
- int ret;
ext4_fsblk_t discard_block;
discard_block = block + ext4_group_first_block_no(sb, block_group);
trace_ext4_discard_blocks(sb,
(unsigned long long) discard_block, count);
- ret = sb_issue_discard(sb, discard_block, count, GFP_NOFS, 0);
- if (ret == -EOPNOTSUPP) {
- ext4_warning(sb, "discard not supported, disabling");
- clear_opt(EXT4_SB(sb)->s_mount_opt, DISCARD);
- }
- return ret;
+ return sb_issue_discard(sb, discard_block, count, GFP_NOFS, 0);
}
/*
@@ -2631,7 +2625,7 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn)
struct super_block *sb = journal->j_private;
struct ext4_buddy e4b;
struct ext4_group_info *db;
- int err, count = 0, count2 = 0;
+ int err, ret, count = 0, count2 = 0;
struct ext4_free_data *entry;
struct list_head *l, *ltmp;
@@ -2641,9 +2635,15 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn)
mb_debug(1, "gonna free %u blocks in group %u (0x%p):",
entry->count, entry->group, entry);
- if (test_opt(sb, DISCARD))
- ext4_issue_discard(sb, entry->group,
+ if (test_opt(sb, DISCARD)) {
+ ret = ext4_issue_discard(sb, entry->group,
entry->start_blk, entry->count);
+ if (unlikely(ret == -EOPNOTSUPP)) {
+ ext4_warning(sb, "discard not supported, "
+ "disabling");
+ clear_opt(sb, DISCARD);
+ }
+ }
err = ext4_mb_load_buddy(sb, entry->group, &e4b);
/* we expect to find existing buddy because it's pinned */
@@ -3881,19 +3881,6 @@ repeat:
}
}
-/*
- * finds all preallocated spaces and return blocks being freed to them
- * if preallocated space becomes full (no block is used from the space)
- * then the function frees space in buddy
- * XXX: at the moment, truncate (which is the only way to free blocks)
- * discards all preallocations
- */
-static void ext4_mb_return_to_preallocation(struct inode *inode,
- struct ext4_buddy *e4b,
- sector_t block, int count)
-{
- BUG_ON(!list_empty(&EXT4_I(inode)->i_prealloc_list));
-}
#ifdef CONFIG_EXT4_DEBUG
static void ext4_mb_show_ac(struct ext4_allocation_context *ac)
{
@@ -4283,7 +4270,7 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
* EDQUOT check, as blocks and quotas have been already
* reserved when data being copied into pagecache.
*/
- if (EXT4_I(ar->inode)->i_delalloc_reserved_flag)
+ if (ext4_test_inode_state(ar->inode, EXT4_STATE_DELALLOC_RESERVED))
ar->flags |= EXT4_MB_DELALLOC_RESERVED;
else {
/* Without delayed allocation we need to verify
@@ -4380,7 +4367,8 @@ out:
if (inquota && ar->len < inquota)
dquot_free_block(ar->inode, inquota - ar->len);
if (!ar->len) {
- if (!EXT4_I(ar->inode)->i_delalloc_reserved_flag)
+ if (!ext4_test_inode_state(ar->inode,
+ EXT4_STATE_DELALLOC_RESERVED))
/* release all the reserved blocks if non delalloc */
percpu_counter_sub(&sbi->s_dirtyblocks_counter,
reserv_blks);
@@ -4626,7 +4614,11 @@ do_more:
* blocks being freed are metadata. these blocks shouldn't
* be used until this transaction is committed
*/
- new_entry = kmem_cache_alloc(ext4_free_ext_cachep, GFP_NOFS);
+ new_entry = kmem_cache_alloc(ext4_free_ext_cachep, GFP_NOFS);
+ if (!new_entry) {
+ err = -ENOMEM;
+ goto error_return;
+ }
new_entry->start_blk = bit;
new_entry->group = block_group;
new_entry->count = count;
@@ -4643,7 +4635,6 @@ do_more:
ext4_lock_group(sb, block_group);
mb_clear_bits(bitmap_bh->b_data, bit, count);
mb_free_blocks(inode, &e4b, bit, count);
- ext4_mb_return_to_preallocation(inode, &e4b, block, count);
}
ret = ext4_free_blks_count(sb, gdp) + count;
@@ -4718,8 +4709,6 @@ static int ext4_trim_extent(struct super_block *sb, int start, int count,
ext4_unlock_group(sb, group);
ret = ext4_issue_discard(sb, group, start, count);
- if (ret)
- ext4_std_error(sb, ret);
ext4_lock_group(sb, group);
mb_free_blocks(NULL, e4b, start, ex.fe_len);
@@ -4819,6 +4808,8 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
ext4_group_t group, ngroups = ext4_get_groups_count(sb);
ext4_grpblk_t cnt = 0, first_block, last_block;
uint64_t start, len, minlen, trimmed;
+ ext4_fsblk_t first_data_blk =
+ le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block);
int ret = 0;
start = range->start >> sb->s_blocksize_bits;
@@ -4828,6 +4819,10 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
if (unlikely(minlen > EXT4_BLOCKS_PER_GROUP(sb)))
return -EINVAL;
+ if (start < first_data_blk) {
+ len -= first_data_blk - start;
+ start = first_data_blk;
+ }
/* Determine first and last group to examine based on start and len */
ext4_get_group_no_and_offset(sb, (ext4_fsblk_t) start,
@@ -4851,7 +4846,7 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
if (len >= EXT4_BLOCKS_PER_GROUP(sb))
len -= (EXT4_BLOCKS_PER_GROUP(sb) - first_block);
else
- last_block = len;
+ last_block = first_block + len;
if (e4b.bd_info->bb_free >= minlen) {
cnt = ext4_trim_all_free(sb, &e4b, first_block,
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 25f3a974b725..b0a126f23c20 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -496,7 +496,7 @@ int ext4_ext_migrate(struct inode *inode)
goal = (((inode->i_ino - 1) / EXT4_INODES_PER_GROUP(inode->i_sb)) *
EXT4_INODES_PER_GROUP(inode->i_sb)) + 1;
tmp_inode = ext4_new_inode(handle, inode->i_sb->s_root->d_inode,
- S_IFREG, 0, goal);
+ S_IFREG, NULL, goal);
if (IS_ERR(tmp_inode)) {
retval = -ENOMEM;
ext4_journal_stop(handle);
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index dc40e75cba88..5485390d32c5 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -581,9 +581,9 @@ static int htree_dirblock_to_tree(struct file *dir_file,
dir->i_sb->s_blocksize -
EXT4_DIR_REC_LEN(0));
for (; de < top; de = ext4_next_entry(de, dir->i_sb->s_blocksize)) {
- if (!ext4_check_dir_entry(dir, de, bh,
- (block<<EXT4_BLOCK_SIZE_BITS(dir->i_sb))
- +((char *)de - bh->b_data))) {
+ if (ext4_check_dir_entry(dir, NULL, de, bh,
+ (block<<EXT4_BLOCK_SIZE_BITS(dir->i_sb))
+ + ((char *)de - bh->b_data))) {
/* On error, skip the f_pos to the next block. */
dir_file->f_pos = (dir_file->f_pos |
(dir->i_sb->s_blocksize - 1)) + 1;
@@ -820,7 +820,7 @@ static inline int search_dirblock(struct buffer_head *bh,
if ((char *) de + namelen <= dlimit &&
ext4_match (namelen, name, de)) {
/* found a match - just to be sure, do a full check */
- if (!ext4_check_dir_entry(dir, de, bh, offset))
+ if (ext4_check_dir_entry(dir, NULL, de, bh, offset))
return -1;
*res_dir = de;
return 1;
@@ -1036,7 +1036,7 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, stru
return ERR_PTR(-EIO);
}
inode = ext4_iget(dir->i_sb, ino);
- if (unlikely(IS_ERR(inode))) {
+ if (IS_ERR(inode)) {
if (PTR_ERR(inode) == -ESTALE) {
EXT4_ERROR_INODE(dir,
"deleted inode referenced: %u",
@@ -1269,7 +1269,7 @@ static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry,
de = (struct ext4_dir_entry_2 *)bh->b_data;
top = bh->b_data + blocksize - reclen;
while ((char *) de <= top) {
- if (!ext4_check_dir_entry(dir, de, bh, offset))
+ if (ext4_check_dir_entry(dir, NULL, de, bh, offset))
return -EIO;
if (ext4_match(namelen, name, de))
return -EEXIST;
@@ -1602,7 +1602,11 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
if (err)
goto journal_error;
}
- ext4_handle_dirty_metadata(handle, inode, frames[0].bh);
+ err = ext4_handle_dirty_metadata(handle, inode, frames[0].bh);
+ if (err) {
+ ext4_std_error(inode->i_sb, err);
+ goto cleanup;
+ }
}
de = do_split(handle, dir, &bh, frame, &hinfo, &err);
if (!de)
@@ -1630,17 +1634,21 @@ static int ext4_delete_entry(handle_t *handle,
{
struct ext4_dir_entry_2 *de, *pde;
unsigned int blocksize = dir->i_sb->s_blocksize;
- int i;
+ int i, err;
i = 0;
pde = NULL;
de = (struct ext4_dir_entry_2 *) bh->b_data;
while (i < bh->b_size) {
- if (!ext4_check_dir_entry(dir, de, bh, i))
+ if (ext4_check_dir_entry(dir, NULL, de, bh, i))
return -EIO;
if (de == de_del) {
BUFFER_TRACE(bh, "get_write_access");
- ext4_journal_get_write_access(handle, bh);
+ err = ext4_journal_get_write_access(handle, bh);
+ if (unlikely(err)) {
+ ext4_std_error(dir->i_sb, err);
+ return err;
+ }
if (pde)
pde->rec_len = ext4_rec_len_to_disk(
ext4_rec_len_from_disk(pde->rec_len,
@@ -1652,7 +1660,11 @@ static int ext4_delete_entry(handle_t *handle,
de->inode = 0;
dir->i_version++;
BUFFER_TRACE(bh, "call ext4_handle_dirty_metadata");
- ext4_handle_dirty_metadata(handle, dir, bh);
+ err = ext4_handle_dirty_metadata(handle, dir, bh);
+ if (unlikely(err)) {
+ ext4_std_error(dir->i_sb, err);
+ return err;
+ }
return 0;
}
i += ext4_rec_len_from_disk(de->rec_len, blocksize);
@@ -1789,7 +1801,7 @@ static int ext4_mkdir(struct inode *dir, struct dentry *dentry, int mode)
{
handle_t *handle;
struct inode *inode;
- struct buffer_head *dir_block;
+ struct buffer_head *dir_block = NULL;
struct ext4_dir_entry_2 *de;
unsigned int blocksize = dir->i_sb->s_blocksize;
int err, retries = 0;
@@ -1822,7 +1834,9 @@ retry:
if (!dir_block)
goto out_clear_inode;
BUFFER_TRACE(dir_block, "get_write_access");
- ext4_journal_get_write_access(handle, dir_block);
+ err = ext4_journal_get_write_access(handle, dir_block);
+ if (err)
+ goto out_clear_inode;
de = (struct ext4_dir_entry_2 *) dir_block->b_data;
de->inode = cpu_to_le32(inode->i_ino);
de->name_len = 1;
@@ -1839,10 +1853,12 @@ retry:
ext4_set_de_type(dir->i_sb, de, S_IFDIR);
inode->i_nlink = 2;
BUFFER_TRACE(dir_block, "call ext4_handle_dirty_metadata");
- ext4_handle_dirty_metadata(handle, dir, dir_block);
- brelse(dir_block);
- ext4_mark_inode_dirty(handle, inode);
- err = ext4_add_entry(handle, dentry, inode);
+ err = ext4_handle_dirty_metadata(handle, dir, dir_block);
+ if (err)
+ goto out_clear_inode;
+ err = ext4_mark_inode_dirty(handle, inode);
+ if (!err)
+ err = ext4_add_entry(handle, dentry, inode);
if (err) {
out_clear_inode:
clear_nlink(inode);
@@ -1853,10 +1869,13 @@ out_clear_inode:
}
ext4_inc_count(handle, dir);
ext4_update_dx_flag(dir);
- ext4_mark_inode_dirty(handle, dir);
+ err = ext4_mark_inode_dirty(handle, dir);
+ if (err)
+ goto out_clear_inode;
d_instantiate(dentry, inode);
unlock_new_inode(inode);
out_stop:
+ brelse(dir_block);
ext4_journal_stop(handle);
if (err == -ENOSPC && ext4_should_retry_alloc(dir->i_sb, &retries))
goto retry;
@@ -1919,7 +1938,7 @@ static int empty_dir(struct inode *inode)
}
de = (struct ext4_dir_entry_2 *) bh->b_data;
}
- if (!ext4_check_dir_entry(inode, de, bh, offset)) {
+ if (ext4_check_dir_entry(inode, NULL, de, bh, offset)) {
de = (struct ext4_dir_entry_2 *)(bh->b_data +
sb->s_blocksize);
offset = (offset | (sb->s_blocksize - 1)) + 1;
@@ -2407,7 +2426,11 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
ext4_current_time(new_dir);
ext4_mark_inode_dirty(handle, new_dir);
BUFFER_TRACE(new_bh, "call ext4_handle_dirty_metadata");
- ext4_handle_dirty_metadata(handle, new_dir, new_bh);
+ retval = ext4_handle_dirty_metadata(handle, new_dir, new_bh);
+ if (unlikely(retval)) {
+ ext4_std_error(new_dir->i_sb, retval);
+ goto end_rename;
+ }
brelse(new_bh);
new_bh = NULL;
}
@@ -2459,7 +2482,11 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
PARENT_INO(dir_bh->b_data, new_dir->i_sb->s_blocksize) =
cpu_to_le32(new_dir->i_ino);
BUFFER_TRACE(dir_bh, "call ext4_handle_dirty_metadata");
- ext4_handle_dirty_metadata(handle, old_dir, dir_bh);
+ retval = ext4_handle_dirty_metadata(handle, old_dir, dir_bh);
+ if (retval) {
+ ext4_std_error(old_dir->i_sb, retval);
+ goto end_rename;
+ }
ext4_dec_count(handle, old_dir);
if (new_inode) {
/* checked empty_dir above, can't have another parent,
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index beacce11ac50..7270dcfca92a 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -44,7 +44,7 @@ int __init ext4_init_pageio(void)
if (io_page_cachep == NULL)
return -ENOMEM;
io_end_cachep = KMEM_CACHE(ext4_io_end, SLAB_RECLAIM_ACCOUNT);
- if (io_page_cachep == NULL) {
+ if (io_end_cachep == NULL) {
kmem_cache_destroy(io_page_cachep);
return -ENOMEM;
}
@@ -158,11 +158,8 @@ static void ext4_end_io_work(struct work_struct *work)
ext4_io_end_t *ext4_init_io_end(struct inode *inode, gfp_t flags)
{
- ext4_io_end_t *io = NULL;
-
- io = kmem_cache_alloc(io_end_cachep, flags);
+ ext4_io_end_t *io = kmem_cache_zalloc(io_end_cachep, flags);
if (io) {
- memset(io, 0, sizeof(*io));
atomic_inc(&EXT4_I(inode)->i_ioend_count);
io->inode = inode;
INIT_WORK(&io->work, ext4_end_io_work);
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index dc963929de65..3ecc6e45d2f9 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -220,7 +220,11 @@ static int setup_new_group_blocks(struct super_block *sb,
memcpy(gdb->b_data, sbi->s_group_desc[i]->b_data, gdb->b_size);
set_buffer_uptodate(gdb);
unlock_buffer(gdb);
- ext4_handle_dirty_metadata(handle, NULL, gdb);
+ err = ext4_handle_dirty_metadata(handle, NULL, gdb);
+ if (unlikely(err)) {
+ brelse(gdb);
+ goto exit_bh;
+ }
ext4_set_bit(bit, bh->b_data);
brelse(gdb);
}
@@ -232,6 +236,8 @@ static int setup_new_group_blocks(struct super_block *sb,
GFP_NOFS);
if (err)
goto exit_bh;
+ for (i = 0, bit = gdblocks + 1; i < reserved_gdb; i++, bit++)
+ ext4_set_bit(bit, bh->b_data);
ext4_debug("mark block bitmap %#04llx (+%llu)\n", input->block_bitmap,
input->block_bitmap - start);
@@ -247,13 +253,20 @@ static int setup_new_group_blocks(struct super_block *sb,
err = sb_issue_zeroout(sb, block, sbi->s_itb_per_group, GFP_NOFS);
if (err)
goto exit_bh;
+ for (i = 0, bit = input->inode_table - start;
+ i < sbi->s_itb_per_group; i++, bit++)
+ ext4_set_bit(bit, bh->b_data);
if ((err = extend_or_restart_transaction(handle, 2, bh)))
goto exit_bh;
ext4_mark_bitmap_end(input->blocks_count, sb->s_blocksize * 8,
bh->b_data);
- ext4_handle_dirty_metadata(handle, NULL, bh);
+ err = ext4_handle_dirty_metadata(handle, NULL, bh);
+ if (unlikely(err)) {
+ ext4_std_error(sb, err);
+ goto exit_bh;
+ }
brelse(bh);
/* Mark unused entries in inode bitmap used */
ext4_debug("clear inode bitmap %#04llx (+%llu)\n",
@@ -265,7 +278,9 @@ static int setup_new_group_blocks(struct super_block *sb,
ext4_mark_bitmap_end(EXT4_INODES_PER_GROUP(sb), sb->s_blocksize * 8,
bh->b_data);
- ext4_handle_dirty_metadata(handle, NULL, bh);
+ err = ext4_handle_dirty_metadata(handle, NULL, bh);
+ if (unlikely(err))
+ ext4_std_error(sb, err);
exit_bh:
brelse(bh);
@@ -417,17 +432,21 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
goto exit_dind;
}
- if ((err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh)))
+ err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh);
+ if (unlikely(err))
goto exit_dind;
- if ((err = ext4_journal_get_write_access(handle, *primary)))
+ err = ext4_journal_get_write_access(handle, *primary);
+ if (unlikely(err))
goto exit_sbh;
- if ((err = ext4_journal_get_write_access(handle, dind)))
- goto exit_primary;
+ err = ext4_journal_get_write_access(handle, dind);
+ if (unlikely(err))
+ ext4_std_error(sb, err);
/* ext4_reserve_inode_write() gets a reference on the iloc */
- if ((err = ext4_reserve_inode_write(handle, inode, &iloc)))
+ err = ext4_reserve_inode_write(handle, inode, &iloc);
+ if (unlikely(err))
goto exit_dindj;
n_group_desc = kmalloc((gdb_num + 1) * sizeof(struct buffer_head *),
@@ -449,12 +468,20 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
* reserved inode, and will become GDT blocks (primary and backup).
*/
data[gdb_num % EXT4_ADDR_PER_BLOCK(sb)] = 0;
- ext4_handle_dirty_metadata(handle, NULL, dind);
- brelse(dind);
+ err = ext4_handle_dirty_metadata(handle, NULL, dind);
+ if (unlikely(err)) {
+ ext4_std_error(sb, err);
+ goto exit_inode;
+ }
inode->i_blocks -= (gdbackups + 1) * sb->s_blocksize >> 9;
ext4_mark_iloc_dirty(handle, inode, &iloc);
memset((*primary)->b_data, 0, sb->s_blocksize);
- ext4_handle_dirty_metadata(handle, NULL, *primary);
+ err = ext4_handle_dirty_metadata(handle, NULL, *primary);
+ if (unlikely(err)) {
+ ext4_std_error(sb, err);
+ goto exit_inode;
+ }
+ brelse(dind);
o_group_desc = EXT4_SB(sb)->s_group_desc;
memcpy(n_group_desc, o_group_desc,
@@ -465,19 +492,19 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
kfree(o_group_desc);
le16_add_cpu(&es->s_reserved_gdt_blocks, -1);
- ext4_handle_dirty_metadata(handle, NULL, EXT4_SB(sb)->s_sbh);
+ err = ext4_handle_dirty_metadata(handle, NULL, EXT4_SB(sb)->s_sbh);
+ if (err)
+ ext4_std_error(sb, err);
- return 0;
+ return err;
exit_inode:
/* ext4_journal_release_buffer(handle, iloc.bh); */
brelse(iloc.bh);
exit_dindj:
/* ext4_journal_release_buffer(handle, dind); */
-exit_primary:
- /* ext4_journal_release_buffer(handle, *primary); */
exit_sbh:
- /* ext4_journal_release_buffer(handle, *primary); */
+ /* ext4_journal_release_buffer(handle, EXT4_SB(sb)->s_sbh); */
exit_dind:
brelse(dind);
exit_bh:
@@ -660,7 +687,9 @@ static void update_backups(struct super_block *sb,
memset(bh->b_data + size, 0, rest);
set_buffer_uptodate(bh);
unlock_buffer(bh);
- ext4_handle_dirty_metadata(handle, NULL, bh);
+ err = ext4_handle_dirty_metadata(handle, NULL, bh);
+ if (unlikely(err))
+ ext4_std_error(sb, err);
brelse(bh);
}
if ((err2 = ext4_journal_stop(handle)) && !err)
@@ -878,7 +907,11 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
/* Update the global fs size fields */
sbi->s_groups_count++;
- ext4_handle_dirty_metadata(handle, NULL, primary);
+ err = ext4_handle_dirty_metadata(handle, NULL, primary);
+ if (unlikely(err)) {
+ ext4_std_error(sb, err);
+ goto exit_journal;
+ }
/* Update the reserved block counts only once the new group is
* active. */
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index fb15c9c0be74..29c80f6d8b27 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -388,13 +388,14 @@ static void ext4_handle_error(struct super_block *sb)
void __ext4_error(struct super_block *sb, const char *function,
unsigned int line, const char *fmt, ...)
{
+ struct va_format vaf;
va_list args;
va_start(args, fmt);
- printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: comm %s: ",
- sb->s_id, function, line, current->comm);
- vprintk(fmt, args);
- printk("\n");
+ vaf.fmt = fmt;
+ vaf.va = &args;
+ printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: comm %s: %pV\n",
+ sb->s_id, function, line, current->comm, &vaf);
va_end(args);
ext4_handle_error(sb);
@@ -405,28 +406,31 @@ void ext4_error_inode(struct inode *inode, const char *function,
const char *fmt, ...)
{
va_list args;
+ struct va_format vaf;
struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;
es->s_last_error_ino = cpu_to_le32(inode->i_ino);
es->s_last_error_block = cpu_to_le64(block);
save_error_info(inode->i_sb, function, line);
va_start(args, fmt);
+ vaf.fmt = fmt;
+ vaf.va = &args;
printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: inode #%lu: ",
inode->i_sb->s_id, function, line, inode->i_ino);
if (block)
- printk("block %llu: ", block);
- printk("comm %s: ", current->comm);
- vprintk(fmt, args);
- printk("\n");
+ printk(KERN_CONT "block %llu: ", block);
+ printk(KERN_CONT "comm %s: %pV\n", current->comm, &vaf);
va_end(args);
ext4_handle_error(inode->i_sb);
}
void ext4_error_file(struct file *file, const char *function,
- unsigned int line, const char *fmt, ...)
+ unsigned int line, ext4_fsblk_t block,
+ const char *fmt, ...)
{
va_list args;
+ struct va_format vaf;
struct ext4_super_block *es;
struct inode *inode = file->f_dentry->d_inode;
char pathname[80], *path;
@@ -434,17 +438,18 @@ void ext4_error_file(struct file *file, const char *function,
es = EXT4_SB(inode->i_sb)->s_es;
es->s_last_error_ino = cpu_to_le32(inode->i_ino);
save_error_info(inode->i_sb, function, line);
- va_start(args, fmt);
path = d_path(&(file->f_path), pathname, sizeof(pathname));
- if (!path)
+ if (IS_ERR(path))
path = "(unknown)";
printk(KERN_CRIT
- "EXT4-fs error (device %s): %s:%d: inode #%lu "
- "(comm %s path %s): ",
- inode->i_sb->s_id, function, line, inode->i_ino,
- current->comm, path);
- vprintk(fmt, args);
- printk("\n");
+ "EXT4-fs error (device %s): %s:%d: inode #%lu: ",
+ inode->i_sb->s_id, function, line, inode->i_ino);
+ if (block)
+ printk(KERN_CONT "block %llu: ", block);
+ va_start(args, fmt);
+ vaf.fmt = fmt;
+ vaf.va = &args;
+ printk(KERN_CONT "comm %s: path %s: %pV\n", current->comm, path, &vaf);
va_end(args);
ext4_handle_error(inode->i_sb);
@@ -543,28 +548,29 @@ void __ext4_abort(struct super_block *sb, const char *function,
panic("EXT4-fs panic from previous error\n");
}
-void ext4_msg (struct super_block * sb, const char *prefix,
- const char *fmt, ...)
+void ext4_msg(struct super_block *sb, const char *prefix, const char *fmt, ...)
{
+ struct va_format vaf;
va_list args;
va_start(args, fmt);
- printk("%sEXT4-fs (%s): ", prefix, sb->s_id);
- vprintk(fmt, args);
- printk("\n");
+ vaf.fmt = fmt;
+ vaf.va = &args;
+ printk("%sEXT4-fs (%s): %pV\n", prefix, sb->s_id, &vaf);
va_end(args);
}
void __ext4_warning(struct super_block *sb, const char *function,
unsigned int line, const char *fmt, ...)
{
+ struct va_format vaf;
va_list args;
va_start(args, fmt);
- printk(KERN_WARNING "EXT4-fs warning (device %s): %s:%d: ",
- sb->s_id, function, line);
- vprintk(fmt, args);
- printk("\n");
+ vaf.fmt = fmt;
+ vaf.va = &args;
+ printk(KERN_WARNING "EXT4-fs warning (device %s): %s:%d: %pV\n",
+ sb->s_id, function, line, &vaf);
va_end(args);
}
@@ -575,21 +581,25 @@ void __ext4_grp_locked_error(const char *function, unsigned int line,
__releases(bitlock)
__acquires(bitlock)
{
+ struct va_format vaf;
va_list args;
struct ext4_super_block *es = EXT4_SB(sb)->s_es;
es->s_last_error_ino = cpu_to_le32(ino);
es->s_last_error_block = cpu_to_le64(block);
__save_error_info(sb, function, line);
+
va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: group %u",
sb->s_id, function, line, grp);
if (ino)
- printk("inode %lu: ", ino);
+ printk(KERN_CONT "inode %lu: ", ino);
if (block)
- printk("block %llu:", (unsigned long long) block);
- vprintk(fmt, args);
- printk("\n");
+ printk(KERN_CONT "block %llu:", (unsigned long long) block);
+ printk(KERN_CONT "%pV\n", &vaf);
va_end(args);
if (test_opt(sb, ERRORS_CONT)) {
@@ -808,21 +818,15 @@ static struct inode *ext4_alloc_inode(struct super_block *sb)
memset(&ei->i_cached_extent, 0, sizeof(struct ext4_ext_cache));
INIT_LIST_HEAD(&ei->i_prealloc_list);
spin_lock_init(&ei->i_prealloc_lock);
- /*
- * Note: We can be called before EXT4_SB(sb)->s_journal is set,
- * therefore it can be null here. Don't check it, just initialize
- * jinode.
- */
- jbd2_journal_init_jbd_inode(&ei->jinode, &ei->vfs_inode);
ei->i_reserved_data_blocks = 0;
ei->i_reserved_meta_blocks = 0;
ei->i_allocated_meta_blocks = 0;
ei->i_da_metadata_calc_len = 0;
- ei->i_delalloc_reserved_flag = 0;
spin_lock_init(&(ei->i_block_reservation_lock));
#ifdef CONFIG_QUOTA
ei->i_reserved_quota = 0;
#endif
+ ei->jinode = NULL;
INIT_LIST_HEAD(&ei->i_completed_io_list);
spin_lock_init(&ei->i_completed_io_lock);
ei->cur_aio_dio = NULL;
@@ -841,6 +845,13 @@ static int ext4_drop_inode(struct inode *inode)
return drop;
}
+static void ext4_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(ext4_inode_cachep, EXT4_I(inode));
+}
+
static void ext4_destroy_inode(struct inode *inode)
{
ext4_ioend_wait(inode);
@@ -853,7 +864,7 @@ static void ext4_destroy_inode(struct inode *inode)
true);
dump_stack();
}
- kmem_cache_free(ext4_inode_cachep, EXT4_I(inode));
+ call_rcu(&inode->i_rcu, ext4_i_callback);
}
static void init_once(void *foo)
@@ -891,9 +902,12 @@ void ext4_clear_inode(struct inode *inode)
end_writeback(inode);
dquot_drop(inode);
ext4_discard_preallocations(inode);
- if (EXT4_JOURNAL(inode))
- jbd2_journal_release_jbd_inode(EXT4_SB(inode->i_sb)->s_journal,
- &EXT4_I(inode)->jinode);
+ if (EXT4_I(inode)->jinode) {
+ jbd2_journal_release_jbd_inode(EXT4_JOURNAL(inode),
+ EXT4_I(inode)->jinode);
+ jbd2_free_inode(EXT4_I(inode)->jinode);
+ EXT4_I(inode)->jinode = NULL;
+ }
}
static inline void ext4_show_quota_options(struct seq_file *seq,
@@ -1386,7 +1400,7 @@ static int set_qf_name(struct super_block *sb, int qtype, substring_t *args)
sbi->s_qf_names[qtype] = NULL;
return 0;
}
- set_opt(sbi->s_mount_opt, QUOTA);
+ set_opt(sb, QUOTA);
return 1;
}
@@ -1441,21 +1455,21 @@ static int parse_options(char *options, struct super_block *sb,
switch (token) {
case Opt_bsd_df:
ext4_msg(sb, KERN_WARNING, deprecated_msg, p, "2.6.38");
- clear_opt(sbi->s_mount_opt, MINIX_DF);
+ clear_opt(sb, MINIX_DF);
break;
case Opt_minix_df:
ext4_msg(sb, KERN_WARNING, deprecated_msg, p, "2.6.38");
- set_opt(sbi->s_mount_opt, MINIX_DF);
+ set_opt(sb, MINIX_DF);
break;
case Opt_grpid:
ext4_msg(sb, KERN_WARNING, deprecated_msg, p, "2.6.38");
- set_opt(sbi->s_mount_opt, GRPID);
+ set_opt(sb, GRPID);
break;
case Opt_nogrpid:
ext4_msg(sb, KERN_WARNING, deprecated_msg, p, "2.6.38");
- clear_opt(sbi->s_mount_opt, GRPID);
+ clear_opt(sb, GRPID);
break;
case Opt_resuid:
@@ -1473,38 +1487,38 @@ static int parse_options(char *options, struct super_block *sb,
/* *sb_block = match_int(&args[0]); */
break;
case Opt_err_panic:
- clear_opt(sbi->s_mount_opt, ERRORS_CONT);
- clear_opt(sbi->s_mount_opt, ERRORS_RO);
- set_opt(sbi->s_mount_opt, ERRORS_PANIC);
+ clear_opt(sb, ERRORS_CONT);
+ clear_opt(sb, ERRORS_RO);
+ set_opt(sb, ERRORS_PANIC);
break;
case Opt_err_ro:
- clear_opt(sbi->s_mount_opt, ERRORS_CONT);
- clear_opt(sbi->s_mount_opt, ERRORS_PANIC);
- set_opt(sbi->s_mount_opt, ERRORS_RO);
+ clear_opt(sb, ERRORS_CONT);
+ clear_opt(sb, ERRORS_PANIC);
+ set_opt(sb, ERRORS_RO);
break;
case Opt_err_cont:
- clear_opt(sbi->s_mount_opt, ERRORS_RO);
- clear_opt(sbi->s_mount_opt, ERRORS_PANIC);
- set_opt(sbi->s_mount_opt, ERRORS_CONT);
+ clear_opt(sb, ERRORS_RO);
+ clear_opt(sb, ERRORS_PANIC);
+ set_opt(sb, ERRORS_CONT);
break;
case Opt_nouid32:
- set_opt(sbi->s_mount_opt, NO_UID32);
+ set_opt(sb, NO_UID32);
break;
case Opt_debug:
- set_opt(sbi->s_mount_opt, DEBUG);
+ set_opt(sb, DEBUG);
break;
case Opt_oldalloc:
- set_opt(sbi->s_mount_opt, OLDALLOC);
+ set_opt(sb, OLDALLOC);
break;
case Opt_orlov:
- clear_opt(sbi->s_mount_opt, OLDALLOC);
+ clear_opt(sb, OLDALLOC);
break;
#ifdef CONFIG_EXT4_FS_XATTR
case Opt_user_xattr:
- set_opt(sbi->s_mount_opt, XATTR_USER);
+ set_opt(sb, XATTR_USER);
break;
case Opt_nouser_xattr:
- clear_opt(sbi->s_mount_opt, XATTR_USER);
+ clear_opt(sb, XATTR_USER);
break;
#else
case Opt_user_xattr:
@@ -1514,10 +1528,10 @@ static int parse_options(char *options, struct super_block *sb,
#endif
#ifdef CONFIG_EXT4_FS_POSIX_ACL
case Opt_acl:
- set_opt(sbi->s_mount_opt, POSIX_ACL);
+ set_opt(sb, POSIX_ACL);
break;
case Opt_noacl:
- clear_opt(sbi->s_mount_opt, POSIX_ACL);
+ clear_opt(sb, POSIX_ACL);
break;
#else
case Opt_acl:
@@ -1536,7 +1550,7 @@ static int parse_options(char *options, struct super_block *sb,
"Cannot specify journal on remount");
return 0;
}
- set_opt(sbi->s_mount_opt, UPDATE_JOURNAL);
+ set_opt(sb, UPDATE_JOURNAL);
break;
case Opt_journal_dev:
if (is_remount) {
@@ -1549,14 +1563,14 @@ static int parse_options(char *options, struct super_block *sb,
*journal_devnum = option;
break;
case Opt_journal_checksum:
- set_opt(sbi->s_mount_opt, JOURNAL_CHECKSUM);
+ set_opt(sb, JOURNAL_CHECKSUM);
break;
case Opt_journal_async_commit:
- set_opt(sbi->s_mount_opt, JOURNAL_ASYNC_COMMIT);
- set_opt(sbi->s_mount_opt, JOURNAL_CHECKSUM);
+ set_opt(sb, JOURNAL_ASYNC_COMMIT);
+ set_opt(sb, JOURNAL_CHECKSUM);
break;
case Opt_noload:
- set_opt(sbi->s_mount_opt, NOLOAD);
+ set_opt(sb, NOLOAD);
break;
case Opt_commit:
if (match_int(&args[0], &option))
@@ -1599,15 +1613,15 @@ static int parse_options(char *options, struct super_block *sb,
return 0;
}
} else {
- clear_opt(sbi->s_mount_opt, DATA_FLAGS);
+ clear_opt(sb, DATA_FLAGS);
sbi->s_mount_opt |= data_opt;
}
break;
case Opt_data_err_abort:
- set_opt(sbi->s_mount_opt, DATA_ERR_ABORT);
+ set_opt(sb, DATA_ERR_ABORT);
break;
case Opt_data_err_ignore:
- clear_opt(sbi->s_mount_opt, DATA_ERR_ABORT);
+ clear_opt(sb, DATA_ERR_ABORT);
break;
#ifdef CONFIG_QUOTA
case Opt_usrjquota:
@@ -1647,12 +1661,12 @@ set_qf_format:
break;
case Opt_quota:
case Opt_usrquota:
- set_opt(sbi->s_mount_opt, QUOTA);
- set_opt(sbi->s_mount_opt, USRQUOTA);
+ set_opt(sb, QUOTA);
+ set_opt(sb, USRQUOTA);
break;
case Opt_grpquota:
- set_opt(sbi->s_mount_opt, QUOTA);
- set_opt(sbi->s_mount_opt, GRPQUOTA);
+ set_opt(sb, QUOTA);
+ set_opt(sb, GRPQUOTA);
break;
case Opt_noquota:
if (sb_any_quota_loaded(sb)) {
@@ -1660,9 +1674,9 @@ set_qf_format:
"options when quota turned on");
return 0;
}
- clear_opt(sbi->s_mount_opt, QUOTA);
- clear_opt(sbi->s_mount_opt, USRQUOTA);
- clear_opt(sbi->s_mount_opt, GRPQUOTA);
+ clear_opt(sb, QUOTA);
+ clear_opt(sb, USRQUOTA);
+ clear_opt(sb, GRPQUOTA);
break;
#else
case Opt_quota:
@@ -1688,7 +1702,7 @@ set_qf_format:
sbi->s_mount_flags |= EXT4_MF_FS_ABORTED;
break;
case Opt_nobarrier:
- clear_opt(sbi->s_mount_opt, BARRIER);
+ clear_opt(sb, BARRIER);
break;
case Opt_barrier:
if (args[0].from) {
@@ -1697,9 +1711,9 @@ set_qf_format:
} else
option = 1; /* No argument, default to 1 */
if (option)
- set_opt(sbi->s_mount_opt, BARRIER);
+ set_opt(sb, BARRIER);
else
- clear_opt(sbi->s_mount_opt, BARRIER);
+ clear_opt(sb, BARRIER);
break;
case Opt_ignore:
break;
@@ -1723,17 +1737,17 @@ set_qf_format:
"Ignoring deprecated bh option");
break;
case Opt_i_version:
- set_opt(sbi->s_mount_opt, I_VERSION);
+ set_opt(sb, I_VERSION);
sb->s_flags |= MS_I_VERSION;
break;
case Opt_nodelalloc:
- clear_opt(sbi->s_mount_opt, DELALLOC);
+ clear_opt(sb, DELALLOC);
break;
case Opt_mblk_io_submit:
- set_opt(sbi->s_mount_opt, MBLK_IO_SUBMIT);
+ set_opt(sb, MBLK_IO_SUBMIT);
break;
case Opt_nomblk_io_submit:
- clear_opt(sbi->s_mount_opt, MBLK_IO_SUBMIT);
+ clear_opt(sb, MBLK_IO_SUBMIT);
break;
case Opt_stripe:
if (match_int(&args[0], &option))
@@ -1743,13 +1757,13 @@ set_qf_format:
sbi->s_stripe = option;
break;
case Opt_delalloc:
- set_opt(sbi->s_mount_opt, DELALLOC);
+ set_opt(sb, DELALLOC);
break;
case Opt_block_validity:
- set_opt(sbi->s_mount_opt, BLOCK_VALIDITY);
+ set_opt(sb, BLOCK_VALIDITY);
break;
case Opt_noblock_validity:
- clear_opt(sbi->s_mount_opt, BLOCK_VALIDITY);
+ clear_opt(sb, BLOCK_VALIDITY);
break;
case Opt_inode_readahead_blks:
if (match_int(&args[0], &option))
@@ -1773,7 +1787,7 @@ set_qf_format:
option);
break;
case Opt_noauto_da_alloc:
- set_opt(sbi->s_mount_opt,NO_AUTO_DA_ALLOC);
+ set_opt(sb, NO_AUTO_DA_ALLOC);
break;
case Opt_auto_da_alloc:
if (args[0].from) {
@@ -1782,24 +1796,24 @@ set_qf_format:
} else
option = 1; /* No argument, default to 1 */
if (option)
- clear_opt(sbi->s_mount_opt, NO_AUTO_DA_ALLOC);
+ clear_opt(sb, NO_AUTO_DA_ALLOC);
else
- set_opt(sbi->s_mount_opt,NO_AUTO_DA_ALLOC);
+ set_opt(sb,NO_AUTO_DA_ALLOC);
break;
case Opt_discard:
- set_opt(sbi->s_mount_opt, DISCARD);
+ set_opt(sb, DISCARD);
break;
case Opt_nodiscard:
- clear_opt(sbi->s_mount_opt, DISCARD);
+ clear_opt(sb, DISCARD);
break;
case Opt_dioread_nolock:
- set_opt(sbi->s_mount_opt, DIOREAD_NOLOCK);
+ set_opt(sb, DIOREAD_NOLOCK);
break;
case Opt_dioread_lock:
- clear_opt(sbi->s_mount_opt, DIOREAD_NOLOCK);
+ clear_opt(sb, DIOREAD_NOLOCK);
break;
case Opt_init_inode_table:
- set_opt(sbi->s_mount_opt, INIT_INODE_TABLE);
+ set_opt(sb, INIT_INODE_TABLE);
if (args[0].from) {
if (match_int(&args[0], &option))
return 0;
@@ -1810,7 +1824,7 @@ set_qf_format:
sbi->s_li_wait_mult = option;
break;
case Opt_noinit_inode_table:
- clear_opt(sbi->s_mount_opt, INIT_INODE_TABLE);
+ clear_opt(sb, INIT_INODE_TABLE);
break;
default:
ext4_msg(sb, KERN_ERR,
@@ -1822,10 +1836,10 @@ set_qf_format:
#ifdef CONFIG_QUOTA
if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
if (test_opt(sb, USRQUOTA) && sbi->s_qf_names[USRQUOTA])
- clear_opt(sbi->s_mount_opt, USRQUOTA);
+ clear_opt(sb, USRQUOTA);
if (test_opt(sb, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA])
- clear_opt(sbi->s_mount_opt, GRPQUOTA);
+ clear_opt(sb, GRPQUOTA);
if (test_opt(sb, GRPQUOTA) || test_opt(sb, USRQUOTA)) {
ext4_msg(sb, KERN_ERR, "old and new quota "
@@ -1895,12 +1909,12 @@ static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
ext4_commit_super(sb, 1);
if (test_opt(sb, DEBUG))
printk(KERN_INFO "[EXT4 FS bs=%lu, gc=%u, "
- "bpg=%lu, ipg=%lu, mo=%04x]\n",
+ "bpg=%lu, ipg=%lu, mo=%04x, mo2=%04x]\n",
sb->s_blocksize,
sbi->s_groups_count,
EXT4_BLOCKS_PER_GROUP(sb),
EXT4_INODES_PER_GROUP(sb),
- sbi->s_mount_opt);
+ sbi->s_mount_opt, sbi->s_mount_opt2);
return res;
}
@@ -1930,14 +1944,13 @@ static int ext4_fill_flex_info(struct super_block *sb)
size = flex_group_count * sizeof(struct flex_groups);
sbi->s_flex_groups = kzalloc(size, GFP_KERNEL);
if (sbi->s_flex_groups == NULL) {
- sbi->s_flex_groups = vmalloc(size);
- if (sbi->s_flex_groups)
- memset(sbi->s_flex_groups, 0, size);
- }
- if (sbi->s_flex_groups == NULL) {
- ext4_msg(sb, KERN_ERR, "not enough memory for "
- "%u flex groups", flex_group_count);
- goto failed;
+ sbi->s_flex_groups = vzalloc(size);
+ if (sbi->s_flex_groups == NULL) {
+ ext4_msg(sb, KERN_ERR,
+ "not enough memory for %u flex groups",
+ flex_group_count);
+ goto failed;
+ }
}
for (i = 0; i < sbi->s_groups_count; i++) {
@@ -2916,7 +2929,7 @@ static int ext4_register_li_request(struct super_block *sb,
struct ext4_sb_info *sbi = EXT4_SB(sb);
struct ext4_li_request *elr;
ext4_group_t ngroups = EXT4_SB(sb)->s_groups_count;
- int ret;
+ int ret = 0;
if (sbi->s_li_request != NULL)
return 0;
@@ -3071,41 +3084,41 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
/* Set defaults before we parse the mount options */
def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
- set_opt(sbi->s_mount_opt, INIT_INODE_TABLE);
+ set_opt(sb, INIT_INODE_TABLE);
if (def_mount_opts & EXT4_DEFM_DEBUG)
- set_opt(sbi->s_mount_opt, DEBUG);
+ set_opt(sb, DEBUG);
if (def_mount_opts & EXT4_DEFM_BSDGROUPS) {
ext4_msg(sb, KERN_WARNING, deprecated_msg, "bsdgroups",
"2.6.38");
- set_opt(sbi->s_mount_opt, GRPID);
+ set_opt(sb, GRPID);
}
if (def_mount_opts & EXT4_DEFM_UID16)
- set_opt(sbi->s_mount_opt, NO_UID32);
+ set_opt(sb, NO_UID32);
#ifdef CONFIG_EXT4_FS_XATTR
if (def_mount_opts & EXT4_DEFM_XATTR_USER)
- set_opt(sbi->s_mount_opt, XATTR_USER);
+ set_opt(sb, XATTR_USER);
#endif
#ifdef CONFIG_EXT4_FS_POSIX_ACL
if (def_mount_opts & EXT4_DEFM_ACL)
- set_opt(sbi->s_mount_opt, POSIX_ACL);
+ set_opt(sb, POSIX_ACL);
#endif
if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_DATA)
- set_opt(sbi->s_mount_opt, JOURNAL_DATA);
+ set_opt(sb, JOURNAL_DATA);
else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_ORDERED)
- set_opt(sbi->s_mount_opt, ORDERED_DATA);
+ set_opt(sb, ORDERED_DATA);
else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_WBACK)
- set_opt(sbi->s_mount_opt, WRITEBACK_DATA);
+ set_opt(sb, WRITEBACK_DATA);
if (le16_to_cpu(sbi->s_es->s_errors) == EXT4_ERRORS_PANIC)
- set_opt(sbi->s_mount_opt, ERRORS_PANIC);
+ set_opt(sb, ERRORS_PANIC);
else if (le16_to_cpu(sbi->s_es->s_errors) == EXT4_ERRORS_CONTINUE)
- set_opt(sbi->s_mount_opt, ERRORS_CONT);
+ set_opt(sb, ERRORS_CONT);
else
- set_opt(sbi->s_mount_opt, ERRORS_RO);
+ set_opt(sb, ERRORS_RO);
if (def_mount_opts & EXT4_DEFM_BLOCK_VALIDITY)
- set_opt(sbi->s_mount_opt, BLOCK_VALIDITY);
+ set_opt(sb, BLOCK_VALIDITY);
if (def_mount_opts & EXT4_DEFM_DISCARD)
- set_opt(sbi->s_mount_opt, DISCARD);
+ set_opt(sb, DISCARD);
sbi->s_resuid = le16_to_cpu(es->s_def_resuid);
sbi->s_resgid = le16_to_cpu(es->s_def_resgid);
@@ -3114,7 +3127,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_max_batch_time = EXT4_DEF_MAX_BATCH_TIME;
if ((def_mount_opts & EXT4_DEFM_NOBARRIER) == 0)
- set_opt(sbi->s_mount_opt, BARRIER);
+ set_opt(sb, BARRIER);
/*
* enable delayed allocation by default
@@ -3122,7 +3135,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
*/
if (!IS_EXT3_SB(sb) &&
((def_mount_opts & EXT4_DEFM_NODELALLOC) == 0))
- set_opt(sbi->s_mount_opt, DELALLOC);
+ set_opt(sb, DELALLOC);
if (!parse_options((char *) sbi->s_es->s_mount_opts, sb,
&journal_devnum, &journal_ioprio, NULL, 0)) {
@@ -3425,8 +3438,8 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
"suppressed and not mounted read-only");
goto failed_mount_wq;
} else {
- clear_opt(sbi->s_mount_opt, DATA_FLAGS);
- set_opt(sbi->s_mount_opt, WRITEBACK_DATA);
+ clear_opt(sb, DATA_FLAGS);
+ set_opt(sb, WRITEBACK_DATA);
sbi->s_journal = NULL;
needs_recovery = 0;
goto no_journal;
@@ -3464,9 +3477,9 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
*/
if (jbd2_journal_check_available_features
(sbi->s_journal, 0, 0, JBD2_FEATURE_INCOMPAT_REVOKE))
- set_opt(sbi->s_mount_opt, ORDERED_DATA);
+ set_opt(sb, ORDERED_DATA);
else
- set_opt(sbi->s_mount_opt, JOURNAL_DATA);
+ set_opt(sb, JOURNAL_DATA);
break;
case EXT4_MOUNT_ORDERED_DATA:
@@ -3556,18 +3569,18 @@ no_journal:
(test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA)) {
ext4_msg(sb, KERN_WARNING, "Ignoring delalloc option - "
"requested data journaling mode");
- clear_opt(sbi->s_mount_opt, DELALLOC);
+ clear_opt(sb, DELALLOC);
}
if (test_opt(sb, DIOREAD_NOLOCK)) {
if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) {
ext4_msg(sb, KERN_WARNING, "Ignoring dioread_nolock "
"option - requested data journaling mode");
- clear_opt(sbi->s_mount_opt, DIOREAD_NOLOCK);
+ clear_opt(sb, DIOREAD_NOLOCK);
}
if (sb->s_blocksize < PAGE_SIZE) {
ext4_msg(sb, KERN_WARNING, "Ignoring dioread_nolock "
"option - block size is too small");
- clear_opt(sbi->s_mount_opt, DIOREAD_NOLOCK);
+ clear_opt(sb, DIOREAD_NOLOCK);
}
}
@@ -4166,6 +4179,22 @@ static int ext4_unfreeze(struct super_block *sb)
return 0;
}
+/*
+ * Structure to save mount options for ext4_remount's benefit
+ */
+struct ext4_mount_options {
+ unsigned long s_mount_opt;
+ unsigned long s_mount_opt2;
+ uid_t s_resuid;
+ gid_t s_resgid;
+ unsigned long s_commit_interval;
+ u32 s_min_batch_time, s_max_batch_time;
+#ifdef CONFIG_QUOTA
+ int s_jquota_fmt;
+ char *s_qf_names[MAXQUOTAS];
+#endif
+};
+
static int ext4_remount(struct super_block *sb, int *flags, char *data)
{
struct ext4_super_block *es;
@@ -4186,6 +4215,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
lock_super(sb);
old_sb_flags = sb->s_flags;
old_opts.s_mount_opt = sbi->s_mount_opt;
+ old_opts.s_mount_opt2 = sbi->s_mount_opt2;
old_opts.s_resuid = sbi->s_resuid;
old_opts.s_resgid = sbi->s_resgid;
old_opts.s_commit_interval = sbi->s_commit_interval;
@@ -4339,6 +4369,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
restore_opts:
sb->s_flags = old_sb_flags;
sbi->s_mount_opt = old_opts.s_mount_opt;
+ sbi->s_mount_opt2 = old_opts.s_mount_opt2;
sbi->s_resuid = old_opts.s_resuid;
sbi->s_resgid = old_opts.s_resgid;
sbi->s_commit_interval = old_opts.s_commit_interval;
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index fa4b899da4b3..fc32176eee39 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -427,23 +427,23 @@ cleanup:
static int
ext4_xattr_list(struct dentry *dentry, char *buffer, size_t buffer_size)
{
- int i_error, b_error;
+ int ret, ret2;
down_read(&EXT4_I(dentry->d_inode)->xattr_sem);
- i_error = ext4_xattr_ibody_list(dentry, buffer, buffer_size);
- if (i_error < 0) {
- b_error = 0;
- } else {
- if (buffer) {
- buffer += i_error;
- buffer_size -= i_error;
- }
- b_error = ext4_xattr_block_list(dentry, buffer, buffer_size);
- if (b_error < 0)
- i_error = 0;
+ ret = ret2 = ext4_xattr_ibody_list(dentry, buffer, buffer_size);
+ if (ret < 0)
+ goto errout;
+ if (buffer) {
+ buffer += ret;
+ buffer_size -= ret;
}
+ ret = ext4_xattr_block_list(dentry, buffer, buffer_size);
+ if (ret < 0)
+ goto errout;
+ ret += ret2;
+errout:
up_read(&EXT4_I(dentry->d_inode)->xattr_sem);
- return i_error + b_error;
+ return ret;
}
/*
@@ -947,7 +947,7 @@ ext4_xattr_ibody_set(handle_t *handle, struct inode *inode,
/*
* ext4_xattr_set_handle()
*
- * Create, replace or remove an extended attribute for this inode. Buffer
+ * Create, replace or remove an extended attribute for this inode. Value
* is NULL to remove an existing extended attribute, and non-NULL to
* either replace an existing extended attribute, or create a new extended
* attribute. The flags XATTR_REPLACE and XATTR_CREATE
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-02 04:21:56 +0300