2020-05-11 06:21:32

by Konstantin Khlebnikov

Subject: [PATCH] f2fs: report delalloc reserve as non-free in statfs for project quota

This reserved space isn't committed yet but cannot be used for
allocations. For userspace it has no difference from used space.

See the same fix in ext4 commit f06925c73942 ("ext4: report delalloc
reserve as non-free in statfs for project quota").

Signed-off-by: Konstantin Khlebnikov <[email protected]>
Fixes: ddc34e328d06 ("f2fs: introduce f2fs_statfs_project")
---
fs/f2fs/super.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index f2dfc21c6abb..c5e8cb31626f 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1292,7 +1292,8 @@ static int f2fs_statfs_project(struct super_block *sb,
limit >>= sb->s_blocksize_bits;

if (limit && buf->f_blocks > limit) {
- curblock = dquot->dq_dqb.dqb_curspace >> sb->s_blocksize_bits;
+ curblock = (dquot->dq_dqb.dqb_curspace +
+ dquot->dq_dqb.dqb_rsvspace) >> sb->s_blocksize_bits;
buf->f_blocks = limit;
buf->f_bfree = buf->f_bavail =
(buf->f_blocks > curblock) ?

2020-05-12 01:52:47

by Chao Yu

Subject: Re: [f2fs-dev] [PATCH] f2fs: report delalloc reserve as non-free in statfs for project quota

On 2020/5/11 14:15, Konstantin Khlebnikov wrote:
> This reserved space isn't committed yet but cannot be used for
> allocations. For userspace it has no difference from used space.
>
> See the same fix in ext4 commit f06925c73942 ("ext4: report delalloc
> reserve as non-free in statfs for project quota").
>
> Signed-off-by: Konstantin Khlebnikov <[email protected]>
> Fixes: ddc34e328d06 ("f2fs: introduce f2fs_statfs_project")

Reviewed-by: Chao Yu <[email protected]>

Thanks,