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| author | Dmitry Monakhov <dmonakhov@openvz.org> | 2010-04-26 20:03:33 +0400 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2010-05-21 19:30:41 +0200 |
| commit | dde9588853b1bde542eab247f8838c472806688f (patch) | |
| tree | 9f9c68bf63120056517bbfce78b75e6820cc4c4b /fs/quota/quota_v1.c | |
| parent | da8d1ba22fa1fd0c0e541a43d75ebb062589b14b (diff) | |
| download | lwn-dde9588853b1bde542eab247f8838c472806688f.tar.gz lwn-dde9588853b1bde542eab247f8838c472806688f.zip | |
quota: Make quota stat accounting lockless.
Quota stats is mostly writable data structure. Let's alloc percpu
bucket for each value.
NOTE: dqstats_read() function is racy against dqstats_{inc,dec}
and may return inconsistent value. But this is ok since absolute
accuracy is not required.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/quota/quota_v1.c')
| -rw-r--r-- | fs/quota/quota_v1.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/quota/quota_v1.c b/fs/quota/quota_v1.c index 2ae757e9c008..4af344c5852a 100644 --- a/fs/quota/quota_v1.c +++ b/fs/quota/quota_v1.c @@ -71,7 +71,7 @@ static int v1_read_dqblk(struct dquot *dquot) dquot->dq_dqb.dqb_ihardlimit == 0 && dquot->dq_dqb.dqb_isoftlimit == 0) set_bit(DQ_FAKE_B, &dquot->dq_flags); - dqstats.reads++; + dqstats_inc(DQST_READS); return 0; } @@ -104,7 +104,7 @@ static int v1_commit_dqblk(struct dquot *dquot) ret = 0; out: - dqstats.writes++; + dqstats_inc(DQST_WRITES); return ret; } |