From: Joe Buehler <jbuehler@hekimian.com>
Date: Wed, 13 Oct 2004 15:07:53 +0000 (+0000)
Subject: linux-pagelaunder-avoid-deadlock-20041012
X-Git-Tag: BP-disconnected~208
X-Git-Url: https://git.michaelhowe.org/gitweb/?a=commitdiff_plain;h=33809f6c7382ab07d018809922a2a2b06e798b63;p=packages%2Fo%2Fopenafs.git

linux-pagelaunder-avoid-deadlock-20041012

FIXES 15239

mmap'd files can deadlock on linux; fix by not letting kernel free pages out of our space predictively

====================
This delta was composed from multiple commits as part of the CVS->Git migration.
The checkin message with each commit was inconsistent.
The following are the additional commit messages.
====================
FIXES 15239

mmap'd files can deadlock on linux; fix by not letting kernel free pages out of
our space predictively
---

diff --git a/src/afs/LINUX/osi_vnodeops.c b/src/afs/LINUX/osi_vnodeops.c
index c09561a1f..8178d0bbe 100644
--- a/src/afs/LINUX/osi_vnodeops.c
+++ b/src/afs/LINUX/osi_vnodeops.c
@@ -1480,6 +1480,12 @@ afs_linux_writepage(struct page *pp)
     unsigned offset = PAGE_CACHE_SIZE;
     long status;
 
+#ifdef PageLaunder
+    if (PageLaunder(pp)) {
+	return(fail_writepage(pp));
+    }
+#endif
+
     inode = (struct inode *)mapping->host;
     end_index = inode->i_size >> PAGE_CACHE_SHIFT;