linux-ext4 - - ext4-fix-freespace-accounting-with-mballoc-on-32bit-machines.patch removed from -mm tree

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <200712202338.lBKNct6d019015@imap1.linux-foundation.org>
Date:	Thu, 20 Dec 2007 15:38:55 -0800
From:	akpm@...ux-foundation.org
To:	sandeen@...hat.com, linux-ext4@...r.kernel.org,
	mm-commits@...r.kernel.org
Subject: - ext4-fix-freespace-accounting-with-mballoc-on-32bit-machines.patch removed from -mm tree


The patch titled
     ext4: fix freespace accounting with mballoc on 32bit machines
has been removed from the -mm tree.  Its filename was
     ext4-fix-freespace-accounting-with-mballoc-on-32bit-machines.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
Subject: ext4: fix freespace accounting with mballoc on 32bit machines
From: Eric Sandeen <sandeen@...hat.com>

On a 32bit machine, passing the negative unsigned long fe_len
into percpu_counter_add (which expects s64) messes up the counters:

[root@...r-05 linux-2.6.23-rc7]# df -h

Filesystem            Size  Used Avail Use% Mounted on
/dev/sdb7              97G -149P  149P   -  /mnt/test

Patch below fixes this.

Signed-off-by: Eric Sandeen <sandeen@...hat.com>
Cc: <linux-ext4@...r.kernel.org>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
---

 fs/ext4/mballoc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN fs/ext4/mballoc.c~ext4-fix-freespace-accounting-with-mballoc-on-32bit-machines fs/ext4/mballoc.c
--- a/fs/ext4/mballoc.c~ext4-fix-freespace-accounting-with-mballoc-on-32bit-machines
+++ a/fs/ext4/mballoc.c
@@ -3005,7 +3005,7 @@ static int ext4_mb_mark_diskspace_used(s
 				- ac->ac_b_ex.fe_len);
 	gdp->bg_checksum = ext4_group_desc_csum(sbi, ac->ac_b_ex.fe_group, gdp);
 	spin_unlock(sb_bgl_lock(sbi, ac->ac_b_ex.fe_group));
-	percpu_counter_add(&sbi->s_freeblocks_counter, - ac->ac_b_ex.fe_len);
+	percpu_counter_sub(&sbi->s_freeblocks_counter, ac->ac_b_ex.fe_len);
 
 	err = ext4_journal_dirty_metadata(handle, bitmap_bh);
 	if (err)
_

Patches currently in -mm which might be from sandeen@...hat.com are

origin.patch
ecryptfs-fix-string-overflow-on-long-cipher-names.patch
ecryptfs-fix-unlocking-in-error-paths.patch
ecryptfs-redo-dgetmntget-on-dentry_open-failure.patch
hfs-handle-more-on-disk-corruptions-without-oopsing.patch
ext2-change-the-default-behaviour-on-error.patch
ecryptfs-make-show_options-reflect-actual-mount-options.patch
ecryptfs-make-show_options-reflect-actual-mount-options-fix.patch
ecryptfs-remove-debug-as-mount-option-and-warn-if-set-via-modprobe.patch
ext3-change-the-default-behaviour-on-error.patch

-
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html