Subject: + ocfs2-fix-ocfs2_sync_file-if-filesystem-is-readonly.patch added to -mm tree
To: younger.liucn@xxxxxxxxx,jlbec@xxxxxxxxxxxx,mfasheh@xxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Mon, 25 Nov 2013 14:27:36 -0800
The patch titled
Subject: ocfs2: fix ocfs2_sync_file() if filesystem is readonly
has been added to the -mm tree. Its filename is
ocfs2-fix-ocfs2_sync_file-if-filesystem-is-readonly.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ocfs2-fix-ocfs2_sync_file-if-filesystem-is-readonly.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ocfs2-fix-ocfs2_sync_file-if-filesystem-is-readonly.patch
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------------------------------------------------------
From: Younger Liu <younger.liucn@xxxxxxxxx>
Subject: ocfs2: fix ocfs2_sync_file() if filesystem is readonly
If filesystem is readonly, there is no need to flush drive's caches or
force any uncommitted transactions.
Signed-off-by: Younger Liu <younger.liucn@xxxxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Cc: Mark Fasheh <mfasheh@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ocfs2/file.c | 3 +++
1 file changed, 3 insertions(+)
diff -puN fs/ocfs2/file.c~ocfs2-fix-ocfs2_sync_file-if-filesystem-is-readonly fs/ocfs2/file.c
--- a/fs/ocfs2/file.c~ocfs2-fix-ocfs2_sync_file-if-filesystem-is-readonly
+++ a/fs/ocfs2/file.c
@@ -185,6 +185,9 @@ static int ocfs2_sync_file(struct file *
file->f_path.dentry->d_name.name,
(unsigned long long)datasync);
+ if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb))
+ return 0;
+
err = filemap_write_and_wait_range(inode->i_mapping, start, end);
if (err)
return err;
_
Patches currently in -mm which might be from younger.liucn@xxxxxxxxx are
ocfs2-fix-ocfs2_sync_file-if-filesystem-is-readonly.patch
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