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quota: make Q_XQUOTASYNC a noop 

Now that XFS takes quota reservations into account there is no need to flush
anything before reporting quotas - in addition to beeing fully transactional
all quota information is also 100% coherent with the rest of the filesystem
now.

Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Christoph Hellwig 2012-02-20 02:28:18 +00:00 committed by Ben Myers
parent 8960501191
commit 4b217ed9e3
1 changed files with 1 additions and 2 deletions
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3
fs/quota/quota.c
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@ -282,10 +282,9 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id,
case Q_XGETQUOTA:
return quota_getxquota(sb, type, id, addr);
case Q_XQUOTASYNC:
/* caller already holds s_umount */
if (sb->s_flags & MS_RDONLY)
return -EROFS;
writeback_inodes_sb(sb, WB_REASON_SYNC);
/* XFS quotas are fully coherent now, making this call a noop */
return 0;
default:
return -EINVAL;