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Go Back   Linux Archive > Redhat > Device-mapper Development

 
 
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Old 02-19-2009, 07:24 PM
 
Default + md-use-kzfree.patch added to -mm tree

The patch titled
md: use kzfree()
has been added to the -mm tree. Its filename is
md-use-kzfree.patch

Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
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*** Remember to use Documentation/SubmitChecklist when testing your code ***

See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this

The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
Subject: md: use kzfree()
From: Johannes Weiner <hannes@cmpxchg.org>

Use kzfree() instead of memset() + kfree().

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Alasdair Kergon <dm-devel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

drivers/md/dm-crypt.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff -puN drivers/md/dm-crypt.c~md-use-kzfree drivers/md/dm-crypt.c
--- a/drivers/md/dm-crypt.c~md-use-kzfree
+++ a/drivers/md/dm-crypt.c
@@ -1137,8 +1137,7 @@ bad_ivmode:
crypto_free_ablkcipher(tfm);
bad_cipher:
/* Must zero key material before freeing */
- memset(cc, 0, sizeof(*cc) + cc->key_size * sizeof(u8));
- kfree(cc);
+ kzfree(cc);
return -EINVAL;
}

@@ -1164,8 +1163,7 @@ static void crypt_dtr(struct dm_target *
dm_put_device(ti, cc->dev);

/* Must zero key material before freeing */
- memset(cc, 0, sizeof(*cc) + cc->key_size * sizeof(u8));
- kfree(cc);
+ kzfree(cc);
}

static int crypt_map(struct dm_target *ti, struct bio *bio,
_

Patches currently in -mm which might be from hannes@cmpxchg.org are

slab-introduce-kzfree.patch
linux-next.patch
crypto-use-kzfree.patch
s390-use-kzfree.patch
md-use-kzfree.patch
usb-use-kzfree.patch
cifs-use-kzfree.patch
ecryptfs-use-kzfree.patch
swsusp-clean-up-shrink_all_zones.patch
swsusp-dont-fiddle-with-swappiness.patch
vmscan-rename-scmay_swap-to-may_unmap.patch
mm-introduce-for_each_populated_zone-macro.patch
mm-introduce-for_each_populated_zone-macro-cleanup.patch
mm-shrink_all_memory-use-scnr_reclaimed.patch
mm-shrink_all_memory-use-scnr_reclaimed-checkpatch-fixes.patch
vmscan-clip-swap_cluster_max-in-shrink_all_memory.patch
memcg-remove-mem_cgroup_calc_mapped_ratio-take2.patch

--
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https://www.redhat.com/mailman/listinfo/dm-devel
 

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