Patchwork [3/4] 9pfs: Fix filesystem to wait for stable page writeback

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Submitter Darrick J. Wong
Date Nov. 21, 2012, 2 a.m.
Message ID <20121121020048.10225.34434.stgit@blackbox.djwong.org>
Download mbox | patch
Permalink /patch/200540/
State New
Headers show

Comments

Darrick J. Wong - Nov. 21, 2012, 2 a.m.
Fix up the ->page_mkwrite handler to provide stable page writes if necessary.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 fs/9p/vfs_file.c |    1 +
 1 file changed, 1 insertion(+)



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Patch

diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index c2483e9..a2d3e2f 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -620,6 +620,7 @@  v9fs_vm_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 	lock_page(page);
 	if (page->mapping != inode->i_mapping)
 		goto out_unlock;
+	wait_if_stable_page_write(page);
 
 	return VM_FAULT_LOCKED;
 out_unlock: