diff options
| author | Daniel Rosenberg <drosen@google.com> | 2018-07-09 20:32:42 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-08-01 11:52:36 -0700 |
| commit | 36b877af7992893b6d1ddbe96971cab5ab9e50eb (patch) | |
| tree | b513221beae092b1c0a90a713312bcc52fcf1b93 /fs | |
| parent | 20ee4382322cd9cf6ecfcf4f429ed108c617fb4a (diff) | |
| download | blackbird-op-linux-36b877af7992893b6d1ddbe96971cab5ab9e50eb.tar.gz blackbird-op-linux-36b877af7992893b6d1ddbe96971cab5ab9e50eb.zip | |
f2fs: Keep alloc_valid_block_count in sync
If we attempt to request more blocks than we have room for, we try to
instead request as much as we can, however, alloc_valid_block_count
is not decremented to match the new value, allowing it to drift higher
until the next checkpoint. This always decrements it when the requested
amount cannot be fulfilled.
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/f2fs/f2fs.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index ed9a1135d56c..9e6b27596b26 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1686,18 +1686,20 @@ static inline int inc_valid_block_count(struct f2fs_sb_info *sbi, sbi->total_valid_block_count -= diff; if (!*count) { spin_unlock(&sbi->stat_lock); - percpu_counter_sub(&sbi->alloc_valid_block_count, diff); goto enospc; } } spin_unlock(&sbi->stat_lock); - if (unlikely(release)) + if (unlikely(release)) { + percpu_counter_sub(&sbi->alloc_valid_block_count, release); dquot_release_reservation_block(inode, release); + } f2fs_i_blocks_write(inode, *count, true, true); return 0; enospc: + percpu_counter_sub(&sbi->alloc_valid_block_count, release); dquot_release_reservation_block(inode, release); return -ENOSPC; } |
