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fs: sysv: Fix sysv_nblocks() returns wrong value

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sysv_nblocks() returns 'blocks' rather than 'res', which only counting
the number of triple-indirect blocks and causing sysv_getattr() gets a
wrong result.

[AV: this is actually a sysv counterpart of minixfs fix -
0fcd426de9d0 "[PATCH] minix block usage counting fix" in
historical tree; mea culpa, should've thought to check
fs/sysv back then...]

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Chen Zhongjin 2022-12-09 18:04:48 +08:00 committed by Al Viro
parent ea258f159d
commit e0c49bd2b4
1 changed files with 1 additions and 1 deletions
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2
fs/sysv/itree.c
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@ -438,7 +438,7 @@ static unsigned sysv_nblocks(struct super_block *s, loff_t size)
res += blocks;
direct = 1;
}
return blocks;
return res;
}
int sysv_getattr(struct user_namespace *mnt_userns, const struct path *path,