For now just use the ->writepage() path for swap traffic. Trond would like
to see ->swap_page() or some such additional a_op.
Signed-off-by: Peter Zijlstra <[email protected]>
---
fs/nfs/write.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
Index: linux-2.6/fs/nfs/write.c
===================================================================
--- linux-2.6.orig/fs/nfs/write.c
+++ linux-2.6/fs/nfs/write.c
@@ -336,6 +336,29 @@ static int nfs_do_writepage(struct page
nfs_inc_stats(inode, NFSIOS_VFSWRITEPAGE);
nfs_add_stats(inode, NFSIOS_WRITEPAGES, 1);
+ if (unlikely(IS_SWAPFILE(inode))) {
+ struct rpc_cred *cred;
+ struct nfs_open_context *ctx;
+ int status;
+
+ cred = rpcauth_lookupcred(NFS_CLIENT(inode)->cl_auth, 0);
+ if (IS_ERR(cred))
+ return PTR_ERR(cred);
+
+ ctx = nfs_find_open_context(inode, cred, FMODE_WRITE);
+ if (!ctx)
+ return -EBADF;
+
+ status = nfs_writepage_setup(ctx, page, 0, nfs_page_length(page));
+
+ put_nfs_open_context(ctx);
+
+ if (status < 0) {
+ nfs_set_pageerror(page);
+ return status;
+ }
+ }
+
nfs_pageio_cond_complete(pgio, page->index);
return nfs_page_async_flush(pgio, page);
}
--
-
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