This patch changes sync_filesystem() to be EXPORT_SYMBOL().
The reason this is needed is that starting with 3.15 kernel, due to
Theodore Ts'o's commit 02b9984d640873b7b3809e63f81a0d7e13496886, "fs: push
sync_filesystem() down to the file system's remount_fs()", all file
systems that have dirty data to be written out need to call
sync_filesystem() from their ->remount_fs() method when remounting
read-only.
As this is now a generically required function rather than an internal
only function it should be EXPORT_SYMBOL() so that all file systems can
call it.
Signed-off-by: Anton Altaparmakov <ai...@cantab.net>
---
Hi Linus,
Can you please apply this patch for inclusion into 3.17? Explanation is
above.
Thanks a lot in advance!
PS. I hope Pine does not mess up the whitespace of the patch!
Best regards,
Anton
--
Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @)
University of Cambridge Information Services, Roger Needham Building
7 JJ Thomson Avenue, Cambridge, CB3 0RB, UK
--- linux/fs/sync.c 2014-08-21 10:30:26.000000000 +0100
+++ linux/fs/sync.c 2014-08-21 10:30:47.000000000 +0100
@@ -65,7 +65,7 @@ int sync_filesystem(struct super_block *
return ret;
return __sync_filesystem(sb, 1);
}
-EXPORT_SYMBOL_GPL(sync_filesystem);
+EXPORT_SYMBOL(sync_filesystem);
static void sync_inodes_one_sb(struct super_block *sb, void *arg)
{
--
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