linux-ext4 - [PATCH 0/5] Break up "fall back to vmalloc() for large allocations"

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Message-Id: <1312204398-12460-1-git-send-email-tytso@mit.edu>
Date:	Mon,  1 Aug 2011 09:13:13 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	Ext4 Developers List <linux-ext4@...r.kernel.org>
Cc:	Theodore Ts'o <tytso@....edu>
Subject: [PATCH 0/5] Break up "fall back to vmalloc() for large allocations"

This patch series breaks up Andreas and Yu Jian's patch "fall back to
vmalloc() for large allocations" into 5 patches, with the following
changes:

1) I created new helper functions, ext4_kvmalloc(), ext4_kzalloc, and
	ext4_kvfree() to simplify the code.

2) Fixed the patch so that online resize would work correctly if
	s_group_info and s_group_desc were allocated using vmalloc().
	(Yeah, there are other reasons why online resize won't work for
	such large allocations, but let's not add to the problems; also,
	there's always the possibility that kmalloc might fail for even
	for a small allocation.)

3) Fixed many more places in mballoc.c where ext4_msg() would be better
	than just printk().

I was waiting for Andreas and/or Yu Jian to resubmit, but since they
didn't, and I wanted these fixes, I decided to break up the patch
myself.

						- Ted

Theodore Ts'o (3):
  ext4: introduce ext4_kvmalloc(), ext4_kzalloc(), and ext4_kvfree()
  ext4: use ext4_kvzalloc()/ext4_kvmalloc() for s_group_desc and
    s_group_info
  ext4: use ext4_msg() instead of printk in mballoc

Yu Jian (2):
  ext4: use EXT4_BAD_INO for buddy cache to avoid colliding with valid
    inode #
  ext4: prevent memory leaks from ext4_mb_init_backend() on error path

 fs/ext4/ext4.h    |    3 ++
 fs/ext4/mballoc.c |  103 +++++++++++++++++++++++++++++------------------------
 fs/ext4/resize.c  |   13 ++++---
 fs/ext4/super.c   |   63 +++++++++++++++++++++-----------
 4 files changed, 107 insertions(+), 75 deletions(-)

-- 
1.7.4.1.22.gec8e1.dirty

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