From: Jeffrey Altman <jaltman@secure-endpoints.com>
Date: Tue, 12 Dec 2006 17:02:37 +0000 (+0000)
Subject: windows-sleep-when-out-of-buffers-20061212
X-Git-Tag: BP-openafs-windows-kdfs-ifs~922
X-Git-Url: https://git.michaelhowe.org/gitweb/?a=commitdiff_plain;h=f126802236bb059b8f0e804c76aef1031beb8a44;p=packages%2Fo%2Fopenafs.git

windows-sleep-when-out-of-buffers-20061212


When there are no free buffers, don't loop continuously.
Sleep so that the other threads that are holding the buffers
can grab the global buffer lock and release them.
---

diff --git a/src/WINNT/afsd/cm_buf.c b/src/WINNT/afsd/cm_buf.c
index e19ab0aae..9b790e51f 100644
--- a/src/WINNT/afsd/cm_buf.c
+++ b/src/WINNT/afsd/cm_buf.c
@@ -862,6 +862,7 @@ long buf_GetNewLocked(struct cm_scache *scp, osi_hyper_t *offsetp, cm_buf_t **bu
             return 0;
         } /* for all buffers in lru queue */
         lock_ReleaseWrite(&buf_globalLock);
+		Sleep(100);		/* give some time for a buffer to be freed */
     }	/* while loop over everything */
     /* not reached */
 } /* the proc */