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authorTrond Myklebust <Trond.Myklebust@netapp.com>2008-06-13 13:25:22 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2008-07-09 12:09:24 -0400
commite468bae97d243fe0e1515abaa1f7d0edf1476ad0 (patch)
tree42bbbfe8d6dfc60bcaaaa1a7164ba75dc1060050 /include/linux/nfs_page.h
parente7d39069e387a12d4c57f4067d9f48c1d29ea900 (diff)
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op-kernel-dev-e468bae97d243fe0e1515abaa1f7d0edf1476ad0.tar.gz
NFS: Allow redirtying of a completed unstable write.
Currently, if an unstable write completes, we cannot redirty the page in order to reflect a new change in the page data until after we've sent a COMMIT request. This patch allows a page rewrite to proceed without the unnecessary COMMIT step, putting it immediately back onto the dirty page list, undoing the VM unstable write accounting, and removing the NFS_PAGE_TAG_COMMIT tag from the NFS radix tree. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/nfs_page.h')
-rw-r--r--include/linux/nfs_page.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index a1676e1..3c60685 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -27,9 +27,12 @@
/*
* Valid flags for a dirty buffer
*/
-#define PG_BUSY 0
-#define PG_NEED_COMMIT 1
-#define PG_NEED_RESCHED 2
+enum {
+ PG_BUSY = 0,
+ PG_CLEAN,
+ PG_NEED_COMMIT,
+ PG_NEED_RESCHED,
+};
struct nfs_inode;
struct nfs_page {
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