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* cluster: STABLE3 - gfs2_edit produces unaligned access
@ 2009-07-19 4:43 Bob Peterson
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From: Bob Peterson @ 2009-07-19 4:43 UTC (permalink / raw)
To: cluster-cvs-relay
Gitweb: http://git.fedorahosted.org/git/cluster.git?p=cluster.git;a=commitdiff;h=abfc1f6194474c3d218e340c7c3bf1a8d246fcdb
Commit: abfc1f6194474c3d218e340c7c3bf1a8d246fcdb
Parent: 8b932966fd7407b85b0b34ca71cb7471bbef8078
Author: Bob Peterson <rpeterso@redhat.com>
AuthorDate: Sat Jul 18 23:37:15 2009 -0500
Committer: Bob Peterson <rpeterso@redhat.com>
CommitterDate: Sat Jul 18 23:37:15 2009 -0500
gfs2_edit produces unaligned access
bz 503530
---
gfs2/edit/hexedit.c | 5 ++---
gfs2/edit/savemeta.c | 10 +++++++---
2 files changed, 9 insertions(+), 6 deletions(-)
diff --git a/gfs2/edit/hexedit.c b/gfs2/edit/hexedit.c
index b774ead..ff449e9 100644
--- a/gfs2/edit/hexedit.c
+++ b/gfs2/edit/hexedit.c
@@ -798,9 +798,8 @@ static void rgcount(void)
/* ------------------------------------------------------------------------ */
static uint64_t find_rgrp_block(struct gfs2_inode *dif, int rg)
{
- char fbuf[sizeof(struct gfs2_rindex)];
int amt;
- struct gfs2_rindex ri;
+ struct gfs2_rindex fbuf, ri;
uint64_t foffset, gfs1_adj = 0;
foffset = rg * risize();
@@ -815,7 +814,7 @@ static uint64_t find_rgrp_block(struct gfs2_inode *dif, int rg)
amt = gfs2_readi(dif, (void *)&fbuf, foffset + gfs1_adj, risize());
if (!amt) /* end of file */
return 0;
- gfs2_rindex_in(&ri, fbuf);
+ gfs2_rindex_in(&ri, (void *)&fbuf);
return ri.ri_addr;
}
diff --git a/gfs2/edit/savemeta.c b/gfs2/edit/savemeta.c
index ee5ff04..243ee49 100644
--- a/gfs2/edit/savemeta.c
+++ b/gfs2/edit/savemeta.c
@@ -52,12 +52,13 @@ extern void read_superblock(void);
*/
static int get_gfs_struct_info(char *gbuf, int *block_type, int *gstruct_len)
{
- struct gfs2_meta_header mh;
+ struct gfs2_meta_header mh, mhbuf;
*block_type = 0;
*gstruct_len = sbd.bsize;
- gfs2_meta_header_in(&mh, gbuf);
+ memcpy(&mhbuf, gbuf, sizeof(mhbuf));
+ gfs2_meta_header_in(&mh, (void *)&mhbuf);
if (mh.mh_magic != GFS2_MAGIC)
return -1;
@@ -782,7 +783,10 @@ static int restore_data(int fd, int in_fd, int printblocksonly)
exit(-1);
}
if (first) {
- gfs2_sb_in(&sbd.sd_sb, savedata->buf);
+ struct gfs2_sb bufsb;
+
+ memcpy(&bufsb, savedata->buf, sizeof(bufsb));
+ gfs2_sb_in(&sbd.sd_sb, (void *)&bufsb);
sbd1 = (struct gfs_sb *)&sbd.sd_sb;
if (sbd1->sb_fs_format == GFS_FORMAT_FS &&
sbd1->sb_header.mh_type ==
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