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authorChuck Lever <cel@netapp.com>2006-03-20 13:44:32 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-03-20 13:44:32 -0500
commit462d5b3296b56289efec426499a83faad4c08d9e (patch)
treeeb4f9a0418e1190958603360cf9bcea0cbb67727 /include/linux/nfs_fs.h
parent63ab46abc70b01cb0711301f5ddb08c1c0bb9b1c (diff)
NFS: make direct write path generate write requests concurrently
Duplicate infrastructure from direct read path that will allow write path to generate multiple write requests concurrently. This will enable us to add support for aio in this path. Temporarily we will lose the ability to do UNSTABLE writes followed by a COMMIT in the direct write path. However, all applications I am aware of that use NFS O_DIRECT currently write in relatively small chunks, so this should not be inconvenient in any way. Test plan: Millions of fsx-odirect ops. OraSim. Signed-off-by: Chuck Lever <cel@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/nfs_fs.h')
-rw-r--r--include/linux/nfs_fs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index f55827be4f8e..6c130a6b0f4d 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -407,6 +407,8 @@ extern int nfs_writepage(struct page *page, struct writeback_control *wbc);
407extern int nfs_writepages(struct address_space *, struct writeback_control *); 407extern int nfs_writepages(struct address_space *, struct writeback_control *);
408extern int nfs_flush_incompatible(struct file *file, struct page *page); 408extern int nfs_flush_incompatible(struct file *file, struct page *page);
409extern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int); 409extern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int);
410extern int nfs_writeback_done(struct rpc_task *, struct nfs_write_data *);
411extern void nfs_writedata_release(void *);
410 412
411/* 413/*
412 * Try to write back everything synchronously (but check the 414 * Try to write back everything synchronously (but check the