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 e19ab0aae0dbac5e6112b94d1cd04386b5125a76..9b790e51fb444c3f1f0e0cf5f5ebcedac327b8ce 100644 (file)
--- 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 */