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| author |   Andreas Gruenbacher <agruenba@redhat.com> | 2018-02-20 08:03:24 -0700 |
|---|---|---|
| committer |   Bob Peterson <rpeterso@redhat.com> | 2018-03-08 09:26:20 -0700 |
| commit | 174d1232ebc84fcde8f5889d1171c9c7e74a10a7 (patch) | |
| tree | 755eabd7f57703c96d0979a52cc555d0c0deecb3 /fs/gfs2/quota.h | |
| parent | Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost (diff) | |
| download | linux-dev-174d1232ebc84fcde8f5889d1171c9c7e74a10a7.tar.xz linux-dev-174d1232ebc84fcde8f5889d1171c9c7e74a10a7.zip | |
gfs2: Fix fallocate chunk size
The chunk size of allocations in __gfs2_fallocate is calculated
incorrectly. The size can collapse, causing __gfs2_fallocate to
allocate one block at a time, which is very inefficient. This needs
fixing in two places:
In gfs2_quota_lock_check, always set ap->allowed to UINT_MAX to indicate
that there is no quota limit. This fixes callers that rely on
ap->allowed to be set even when quotas are off.
In __gfs2_fallocate, reset max_blks to UINT_MAX in each iteration of the
loop to make sure that allocation limits from one resource group won't
spill over into another resource group.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Diffstat (limited to 'fs/gfs2/quota.h')
| -rw-r--r-- | fs/gfs2/quota.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/gfs2/quota.h b/fs/gfs2/quota.h index 5e47c935a515..836f29480be6 100644 --- a/fs/gfs2/quota.h +++ b/fs/gfs2/quota.h @@ -45,6 +45,8 @@ static inline int gfs2_quota_lock_check(struct gfs2_inode *ip, { struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); int ret; + + ap->allowed = UINT_MAX; /* Assume we are permitted a whole lot */ if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF) return 0; ret = gfs2_quota_lock(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE); |