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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_tree.c | |
| parent | da8d1ba22fa1fd0c0e541a43d75ebb062589b14b (diff) | |
| download | linux-dde9588853b1bde542eab247f8838c472806688f.tar.gz linux-dde9588853b1bde542eab247f8838c472806688f.tar.bz2 linux-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_tree.c')
| -rw-r--r-- | fs/quota/quota_tree.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/quota/quota_tree.c b/fs/quota/quota_tree.c index f81f4bcfb178..5b7f7416ec7a 100644 --- a/fs/quota/quota_tree.c +++ b/fs/quota/quota_tree.c @@ -384,7 +384,7 @@ int qtree_write_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot) } else { ret = 0; } - dqstats.writes++; + dqstats_inc(DQST_WRITES); kfree(ddquot); return ret; @@ -634,7 +634,7 @@ int qtree_read_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot) spin_unlock(&dq_data_lock); kfree(ddquot); out: - dqstats.reads++; + dqstats_inc(DQST_READS); return ret; } EXPORT_SYMBOL(qtree_read_dquot); |