diff options
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 44b0d418143c..74f2071189b2 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1729,6 +1729,10 @@ struct ext4_sb_info { */ struct work_struct s_sb_upd_work; + /* Atomic write unit values in bytes */ + unsigned int s_awu_min; + unsigned int s_awu_max; + /* Ext4 fast commit sub transaction ID */ atomic_t s_fc_subtid; @@ -1865,14 +1869,6 @@ static inline bool ext4_simulate_fail(struct super_block *sb, return false; } -static inline void ext4_simulate_fail_bh(struct super_block *sb, - struct buffer_head *bh, - unsigned long code) -{ - if (!IS_ERR(bh) && ext4_simulate_fail(sb, code)) - clear_buffer_uptodate(bh); -} - /* * Error number codes for s_{first,last}_error_errno * @@ -3100,9 +3096,9 @@ extern struct buffer_head *ext4_sb_bread(struct super_block *sb, extern struct buffer_head *ext4_sb_bread_unmovable(struct super_block *sb, sector_t block); extern void ext4_read_bh_nowait(struct buffer_head *bh, blk_opf_t op_flags, - bh_end_io_t *end_io); + bh_end_io_t *end_io, bool simu_fail); extern int ext4_read_bh(struct buffer_head *bh, blk_opf_t op_flags, - bh_end_io_t *end_io); + bh_end_io_t *end_io, bool simu_fail); extern int ext4_read_bh_lock(struct buffer_head *bh, blk_opf_t op_flags, bool wait); extern void ext4_sb_breadahead_unmovable(struct super_block *sb, sector_t block); extern int ext4_seq_options_show(struct seq_file *seq, void *offset); @@ -3855,6 +3851,12 @@ static inline int ext4_buffer_uptodate(struct buffer_head *bh) return buffer_uptodate(bh); } +static inline bool ext4_inode_can_atomic_write(struct inode *inode) +{ + + return S_ISREG(inode->i_mode) && EXT4_SB(inode->i_sb)->s_awu_min > 0; +} + extern int ext4_block_write_begin(handle_t *handle, struct folio *folio, loff_t pos, unsigned len, get_block_t *get_block); |