Reenabled linux-xen and xen-image build

[people/pmueller/ipfire-2.x.git] / src / patches / suse-2.6.27.25 / patches.fixes / ext4-mballoc-preallocate.patch

From: Jan Kara <jack@suse.cz>
Subject: Fix assertion failure in mballoc code
References: bnc#480749
Patch-mainline: 2.6.28

Backport of ext4 changes made a mistake and we enabled preallocation also for
non-regular files. This is not expected by the mballoc code and so we
eventually hit an assertion failure. Disable preallocation for non-regular
files as mainline does.

Signed-off-by: Jan Kara <jack@suse.cz>

diff -rupX /home/jack/.kerndiffexclude linux-2.6.27-SLE11_BRANCH/fs/ext4/inode.c linux-2.6.27-SLE11_BRANCH-1-ext4_mballoc_fix/fs/ext4/inode.c
--- linux-2.6.27-SLE11_BRANCH/fs/ext4/inode.c	2009-03-10 16:07:41.000000000 +0100
+++ linux-2.6.27-SLE11_BRANCH-1-ext4_mballoc_fix/fs/ext4/inode.c	2009-03-10 16:09:05.000000000 +0100
@@ -600,7 +600,9 @@ static int ext4_alloc_blocks(handle_t *h
 	ar.goal = goal;
 	ar.len = target;
 	ar.logical = iblock;
-	ar.flags = EXT4_MB_HINT_DATA;
+	if (S_ISREG(inode->i_mode))
+		/* preallocate only for regular files */
+		ar.flags = EXT4_MB_HINT_DATA;
 
 	current_block = ext4_mb_new_blocks(handle, &ar, err);