This is a note to let you know that I've just added the patch titled
ext4: avoid kmemcheck complaint from reading uninitialized memory
to the 3.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ext4-avoid-kmemcheck-complaint-from-reading-uninitialized-memory.patch
and it can be found in the queue-3.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 7e731bc9a12339f344cddf82166b82633d99dd86 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <[email protected]>
Date: Sun, 5 Aug 2012 23:28:16 -0400
Subject: ext4: avoid kmemcheck complaint from reading uninitialized memory
From: Theodore Ts'o <[email protected]>
commit 7e731bc9a12339f344cddf82166b82633d99dd86 upstream.
Commit 03179fe923 introduced a kmemcheck complaint in
ext4_da_get_block_prep() because we save and restore
ei->i_da_metadata_calc_last_lblock even though it is left
uninitialized in the case where i_da_metadata_calc_len is zero.
This doesn't hurt anything, but silencing the kmemcheck complaint
makes it easier for people to find real bugs.
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=45631
(which is marked as a regression).
Signed-off-by: "Theodore Ts'o" <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/ext4/super.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -976,6 +976,7 @@ static struct inode *ext4_alloc_inode(st
ei->i_reserved_meta_blocks = 0;
ei->i_allocated_meta_blocks = 0;
ei->i_da_metadata_calc_len = 0;
+ ei->i_da_metadata_calc_last_lblock = 0;
spin_lock_init(&(ei->i_block_reservation_lock));
#ifdef CONFIG_QUOTA
ei->i_reserved_quota = 0;
Patches currently in stable-queue which might be from [email protected] are
queue-3.5/ext4-avoid-kmemcheck-complaint-from-reading-uninitialized-memory.patch
queue-3.5/ext4-make-sure-the-journal-sb-is-written-in-ext4_clear_journal_err.patch
queue-3.5/ext4-fix-long-mount-times-on-very-big-file-systems.patch
queue-3.5/ext4-fix-kernel-bug-on-large-scale-rm-rf-commands.patch
queue-3.5/ext4-don-t-call-ext4_error-while-block-group-is-locked.patch
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