From: green@linuxhacker.ru
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
devel@driverdev.osuosl.org,
Andreas Dilger <andreas.dilger@intel.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Henri Doreau <henri.doreau@cea.fr>,
Oleg Drokin <oleg.drokin@intel.com>
Subject: [PATCH 10/20] staging/lustre/obdclass: Proper swabbing of llog_rec_tail.
Date: Sun, 1 Feb 2015 21:52:09 -0500 [thread overview]
Message-ID: <1422845539-26742-11-git-send-email-green@linuxhacker.ru> (raw)
In-Reply-To: <1422845539-26742-1-git-send-email-green@linuxhacker.ru>
From: Henri Doreau <henri.doreau@cea.fr>
A variable-length structure preceeds llog_rec_tail within an llog
block. Thus cr_tail shouldn't be accessed directly as a structure
member but its actual location should be computed dynamically.
Signed-off-by: Henri Doreau <henri.doreau@cea.fr>
Reviewed-on: http://review.whamcloud.com/11937
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5631
Reviewed-by: jacques-Charles Lafoucriere <jacques-charles.lafoucriere@cea.fr>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
---
drivers/staging/lustre/lustre/obdclass/llog_swab.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_swab.c b/drivers/staging/lustre/lustre/obdclass/llog_swab.c
index d3ec90e..a2d5aa1 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_swab.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog_swab.c
@@ -168,7 +168,8 @@ void lustre_swab_llog_rec(struct llog_rec_hdr *rec)
}
case CHANGELOG_REC:
{
- struct llog_changelog_rec *cr = (struct llog_changelog_rec *)rec;
+ struct llog_changelog_rec *cr =
+ (struct llog_changelog_rec *)rec;
__swab16s(&cr->cr.cr_namelen);
__swab16s(&cr->cr.cr_flags);
@@ -188,6 +189,8 @@ void lustre_swab_llog_rec(struct llog_rec_hdr *rec)
} else {
tail = &cr->cr_tail;
}
+ tail = (struct llog_rec_tail *)((char *)tail +
+ cr->cr.cr_namelen);
break;
}
case CHANGELOG_USER_REC:
--
2.1.0
next prev parent reply other threads:[~2015-02-02 2:56 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-02 2:51 [PATCH 00/20] Lustre fixes green
2015-02-02 2:52 ` [PATCH 01/20] staging/lustre/ptlrpc: avoid list scan in ptlrpcd_check green
2015-02-02 2:52 ` [PATCH 02/20] staging/lustre/osc: split different type of IO green
2015-02-02 2:52 ` [PATCH 03/20] staging/lustre/ldlm: high load because of negative timeout green
2015-02-02 2:52 ` [PATCH 04/20] staging/lustre/libcfs: fix illegal page access of tracefiled() green
2015-02-02 2:52 ` [PATCH 05/20] staging/lustre/obdclass: fix a race in recovery green
2015-02-02 2:52 ` [PATCH 06/20] staging/lustre: fix comparison between signed and unsigned green
2015-02-02 13:02 ` Dan Carpenter
2015-02-02 15:44 ` Greg Kroah-Hartman
2015-02-02 20:25 ` Oleg Drokin
2015-02-02 20:51 ` Greg Kroah-Hartman
2015-02-02 23:16 ` Oleg Drokin
2015-02-02 2:52 ` [PATCH 07/20] staging/lustre/lnet: peer aliveness status and NI status green
2015-02-02 2:52 ` [PATCH 08/20] staging/lustre/llite: to configure max_cached_mb correctly green
2015-02-02 2:52 ` [PATCH 09/20] staging/lustre/llite: remove llite proc root on init failure green
2015-02-02 2:52 ` green [this message]
2015-02-02 2:52 ` [PATCH 11/20] staging/lustre/lnet: portal spreading rotor should be unsigned green
2015-02-02 2:52 ` [PATCH 12/20] staging/lustre/obd: change type of cl_conn_count to size_t green
2015-02-07 9:30 ` Greg Kroah-Hartman
2015-02-02 2:52 ` [PATCH 13/20] staging/lustre/ptlrpc: hold rq_lock when modify rq_flags green
2015-02-02 2:52 ` [PATCH 14/20] staging/lustre/llite: Solve a race to access lli_has_smd in read case green
2015-02-02 2:52 ` [PATCH 15/20] staging/lustre/fld: refer to MDT0 for fld lookup in some cases green
2015-02-02 2:52 ` [PATCH 16/20] staging/lustre/libcfs: protect kkuc_groups from write access green
2015-02-02 2:52 ` [PATCH 17/20] staging/lustre/llite: Add exception entry check after radix_tree green
2015-02-02 2:52 ` [PATCH 18/20] staging/lustre/llite: don't add to page cache upon failure green
2015-02-02 2:52 ` [PATCH 19/20] staging/lustre/clio: Do not allow group locks with gid 0 green
2015-02-02 2:52 ` [PATCH 20/20] staging/lustre/mdc: Initialize req in mdc_enqueue for !it case green
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1422845539-26742-11-git-send-email-green@linuxhacker.ru \
--to=green@linuxhacker.ru \
--cc=andreas.dilger@intel.com \
--cc=devel@driverdev.osuosl.org \
--cc=gregkh@linuxfoundation.org \
--cc=henri.doreau@cea.fr \
--cc=linux-kernel@vger.kernel.org \
--cc=oleg.drokin@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).