we try to keep VCACHE_FREE entries free. if there's already that many free,
do nothing.
Change-Id: I7e92430329a17250f94d0435de7641fa331dd461
Reviewed-on: http://gerrit.openafs.org/4595
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
if (afsd_dynamic_vcaches && (last5MinCheck + 300 < now)) {
/* start with trying to drop us back to our base usage */
- int anumber;
- if (afs_vcount <= afs_cacheStats)
- anumber = VCACHE_FREE;
- else
- anumber = VCACHE_FREE + (afs_vcount - afs_cacheStats);
-
- ObtainWriteLock(&afs_xvcache, 734);
- afs_ShakeLooseVCaches(anumber);
- ReleaseWriteLock(&afs_xvcache);
+ int anumber = VCACHE_FREE + (afs_vcount - afs_cacheStats);
+
+ if (anumber > 0) {
+ ObtainWriteLock(&afs_xvcache, 734);
+ afs_ShakeLooseVCaches(anumber);
+ ReleaseWriteLock(&afs_xvcache);
+ }
last5MinCheck = now;
}