[PATCH 4.4 59/90] ufs_getfrag_block(): we only grab ->truncate_mutex on block creation path

From	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups	linux.kernel
Subject	[PATCH 4.4 59/90] ufs_getfrag_block(): we only grab ->truncate_mutex on block creation path
Date	2017-06-12 18:10 +0200
Message-ID	<tRA4J-4ju-77@gated-at.bofh.it> (permalink)
References	<tRzBD-3Tq-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Al Viro <viro@zeniv.linux.org.uk>

commit 006351ac8ead0d4a67dd3845e3ceffe650a23212 upstream.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/ufs/inode.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -403,7 +403,9 @@ static int ufs_getfrag_block(struct inod
 
 	if (!create) {
 		phys64 = ufs_frag_map(inode, offsets, depth);
-		goto out;
+		if (phys64)
+			map_bh(bh_result, sb, phys64 + frag);
+		return 0;
 	}
 
         /* This code entered only while writing ....? */

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[PATCH 4.4 59/90] ufs_getfrag_block(): we only grab ->truncate_mutex on block creation path Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-06-12 18:10 +0200

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