diff options
| -rw-r--r-- | fs/f2fs/f2fs.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 7a57279b2c54..30981094dff8 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1147,24 +1147,33 @@ static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool); static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, struct inode *inode, blkcnt_t *count) { + blkcnt_t diff; + #ifdef CONFIG_F2FS_FAULT_INJECTION if (time_to_inject(FAULT_BLOCK)) return false; #endif + /* + * let's increase this in prior to actual block count change in order + * for f2fs_sync_file to avoid data races when deciding checkpoint. + */ + percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); + spin_lock(&sbi->stat_lock); sbi->total_valid_block_count += (block_t)(*count); if (unlikely(sbi->total_valid_block_count > sbi->user_block_count)) { - *count -= sbi->total_valid_block_count - sbi->user_block_count; + diff = sbi->total_valid_block_count - sbi->user_block_count; + *count -= diff; sbi->total_valid_block_count = sbi->user_block_count; if (!*count) { spin_unlock(&sbi->stat_lock); + percpu_counter_sub(&sbi->alloc_valid_block_count, diff); return false; } } spin_unlock(&sbi->stat_lock); f2fs_i_blocks_write(inode, *count, true); - percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); return true; } |
