[PATCH 4.19 017/206] f2fs: report delalloc reserve as non-free in statfs for project quota

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From: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx>

[ Upstream commit baaa7ebf25c78c5cb712fac16b7f549100beddd3 ]

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").

Fixes: ddc34e328d06 ("f2fs: introduce f2fs_statfs_project")
Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx>
Reviewed-by: Chao Yu <yuchao0@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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 45f8f6ec22a55..9782250c98156 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1154,7 +1154,8 @@ 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) ?
-- 
2.25.1






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