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Subject[PATCH 3/3] fs: Fix remaining filesystems to wait for stable page writeback
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Date
Fix up the filesystems that provide their own ->page_mkwrite handlers to
provide stable page writes if necessary.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
fs/9p/vfs_file.c | 1 +
fs/afs/write.c | 4 ++--
fs/ceph/addr.c | 1 +
fs/cifs/file.c | 1 +
fs/ocfs2/mmap.c | 1 +
fs/ubifs/file.c | 4 ++--
6 files changed, 8 insertions(+), 4 deletions(-)


diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index c2483e9..aa253f0 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_on_stable_page_write(page);

return VM_FAULT_LOCKED;
out_unlock:
diff --git a/fs/afs/write.c b/fs/afs/write.c
index 9aa52d9..39eb2a4 100644
--- a/fs/afs/write.c
+++ b/fs/afs/write.c
@@ -758,7 +758,7 @@ int afs_page_mkwrite(struct vm_area_struct *vma, struct page *page)
#ifdef CONFIG_AFS_FSCACHE
fscache_wait_on_page_write(vnode->cache, page);
#endif
-
+ wait_on_stable_page_write(page);
_leave(" = 0");
- return 0;
+ return VM_FAULT_LOCKED;
}
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 6690269..e9734bf 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -1208,6 +1208,7 @@ static int ceph_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
set_page_dirty(page);
up_read(&mdsc->snap_rwsem);
ret = VM_FAULT_LOCKED;
+ wait_on_stable_page_write(page);
} else {
if (ret == -ENOMEM)
ret = VM_FAULT_OOM;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index edb25b4..a8770bf 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2997,6 +2997,7 @@ cifs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
struct page *page = vmf->page;

lock_page(page);
+ wait_on_stable_page_write(page);
return VM_FAULT_LOCKED;
}

diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c
index 47a87dd..a0027b1 100644
--- a/fs/ocfs2/mmap.c
+++ b/fs/ocfs2/mmap.c
@@ -124,6 +124,7 @@ static int __ocfs2_page_mkwrite(struct file *file, struct buffer_head *di_bh,
fsdata);
BUG_ON(ret != len);
ret = VM_FAULT_LOCKED;
+ wait_on_stable_page_write(page);
out:
return ret;
}
diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 5bc7781..cb0d3aa 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -1522,8 +1522,8 @@ static int ubifs_vm_page_mkwrite(struct vm_area_struct *vma,
ubifs_release_dirty_inode_budget(c, ui);
}

- unlock_page(page);
- return 0;
+ wait_on_stable_page_write(page);
+ return VM_FAULT_LOCKED;

out_unlock:
unlock_page(page);


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