From: Nickolai Zeldovich <kolya@mit.edu>
Date: Tue, 29 Jan 2002 16:18:58 +0000 (+0000)
Subject: STABLE12-linux-use-fdatasync-directly-20020129
X-Git-Tag: openafs-stable-1_2_3~6
X-Git-Url: https://git.michaelhowe.org/gitweb/?a=commitdiff_plain;h=670138541918d383a4bf32178804b3f770339059;p=packages%2Fo%2Fopenafs.git

STABLE12-linux-use-fdatasync-directly-20020129

Use filemap_fdata{sync,wait} directly (available in 2.4.5 and above)
rather than write_inode_now(), which steals afs inodes and puts them
on the global inode lists.


(cherry picked from commit 30c69dae289b0184d2d38e4d9781de5a2c81952c)
---

diff --git a/src/afs/LINUX/osi_vm.c b/src/afs/LINUX/osi_vm.c
index b5e0491f7..cb3b56916 100644
--- a/src/afs/LINUX/osi_vm.c
+++ b/src/afs/LINUX/osi_vm.c
@@ -89,12 +89,14 @@ void osi_VM_FSyncInval(struct vcache *avc)
  */
 void osi_VM_StoreAllSegments(struct vcache *avc)
 {
-#ifdef AFS_LINUX24_ENV
     struct inode *ip = (struct inode *) avc;
-   
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,5)
+    /* filemap_fdatasync() only exported in 2.4.5 and above */
     ReleaseWriteLock(&avc->lock);
     AFS_GUNLOCK();
-    write_inode_now(ip, 1);
+    filemap_fdatasync(ip->i_mapping);
+    filemap_fdatawait(ip->i_mapping);
     AFS_GLOCK();
     ObtainWriteLock(&avc->lock, 121);
 #endif