Author: jeff
Date: Mon Mar 26 18:36:17 2018
New Revision: 331561
URL: https://svnweb.freebsd.org/changeset/base/331561
Log:
Fix a bug introduced in r329612 that slowly invalidates all clean bufs.
Reported by: bde
Reviewed by: bde
Sponsored by: Netflix, Dell/EMC Isilon
Modified:
head/sys/kern/vfs_bio.c
Modified: head/sys/kern/vfs_bio.c
==============================================================================
--- head/sys/kern/vfs_bio.c Mon Mar 26 18:34:03 2018 (r331560)
+++ head/sys/kern/vfs_bio.c Mon Mar 26 18:36:17 2018 (r331561)
@@ -821,7 +821,8 @@ bufspace_daemon(void *arg)
* which will inefficiently trade bufs with bqrelse
* until we return to condition 2.
*/
- do {
+ while (bd->bd_bufspace > bd->bd_lobufspace ||
+ bd->bd_freebuffers < bd->bd_hifreebuffers) {
if (buf_recycle(bd, false) != 0) {
if (bd_flushall(bd))
continue;
@@ -842,9 +843,7 @@ bufspace_daemon(void *arg)
BD_UNLOCK(bd);
}
maybe_yield();
- } while (bd->bd_bufspace > bd->bd_lobufspace ||
- bd->bd_freebuffers < bd->bd_hifreebuffers);
-
+ }
bufspace_daemon_wait(bd);
}
}
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