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Date:	Thu,  3 Jan 2013 11:50:07 +0000
From:	Steven Whitehouse <>
Cc:	Nathan Straz <>,
	Steven Whitehouse <>
Subject: [PATCH 1/4] GFS2: Initialize hex string to '0'

From: Nathan Straz <>

When generating the DLM lock name, a value of 0 would skip
the loop and leave the string unchanged.  This left locks with
a value of 0 unlabeled.  Initializing the string to '0' fixes this.

Signed-off-by: Nathan Straz <>
Signed-off-by: Steven Whitehouse <>

diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c
index 8dad6b0..b906ed1 100644
--- a/fs/gfs2/lock_dlm.c
+++ b/fs/gfs2/lock_dlm.c
@@ -241,6 +241,7 @@ static u32 make_flags(struct gfs2_glock *gl, const unsigned int gfs_flags,
 static void gfs2_reverse_hex(char *c, u64 value)
+	*c = '0';
 	while (value) {
 		*c-- = hex_asc[value & 0x0f];
 		value >>= 4;

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