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authorTrond Myklebust <Trond.Myklebust@netapp.com>2006-10-19 23:28:38 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-20 10:26:38 -0700
commitb6dff26a08189932eeb0fa4261e09e733b0fc540 (patch)
tree30f13a24dd60f6e94f9152b12e0931a1ceb16d62
parent575b5c7870c940326a11614e0279b74356c1d44f (diff)
[PATCH] NFS: Fix oops in nfs_cancel_commit_list
Fix two bugs: - nfs_inode_remove_request will call nfs_clear_request, so we cannot reference req->wb_page after it. Move the call to dec_zone_page_state so that it occurs while req->wb_page is still valid. - Calling nfs_clear_page_writeback is unnecessary since the radix tree tags will have been cleared by the call to nfs_inode_remove_request. Replace with a simple call to nfs_unlock_request. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--fs/nfs/write.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index ca92ac36fe9..883dd4a1c15 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -590,10 +590,10 @@ static void nfs_cancel_commit_list(struct list_head *head)
while(!list_empty(head)) {
req = nfs_list_entry(head->next);
+ dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
nfs_list_remove_request(req);
nfs_inode_remove_request(req);
- dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
- nfs_clear_page_writeback(req);
+ nfs_unlock_request(req);
}
}