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path: root/fs/gfs2/recovery.c
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Diffstat (limited to 'fs/gfs2/recovery.c')
-rw-r--r--fs/gfs2/recovery.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index 447816241626..4acf238e1db6 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -136,6 +136,7 @@ static int get_log_header(struct gfs2_jdesc *jd, unsigned int blk,
{
struct buffer_head *bh;
struct gfs2_log_header_host lh;
+static const u32 nothing = 0;
u32 hash;
int error;
@@ -143,11 +144,11 @@ static int get_log_header(struct gfs2_jdesc *jd, unsigned int blk,
if (error)
return error;
- memcpy(&lh, bh->b_data, sizeof(struct gfs2_log_header)); /* XXX */
- lh.lh_hash = 0;
- hash = gfs2_disk_hash((char *)&lh, sizeof(struct gfs2_log_header));
+ hash = crc32_le((u32)~0, bh->b_data, sizeof(struct gfs2_log_header) -
+ sizeof(u32));
+ hash = crc32_le(hash, (unsigned char const *)&nothing, sizeof(nothing));
+ hash ^= (u32)~0;
gfs2_log_header_in(&lh, bh->b_data);
-
brelse(bh);
if (lh.lh_header.mh_magic != GFS2_MAGIC ||