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authorYoann Padioleau <padator@wanadoo.fr>2007-07-19 04:49:03 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-19 13:04:50 -0400
commitdd00cc486ab1c17049a535413d1751ef3482141c (patch)
treed90ff69ea06792b9284f2f2665c96624f121b88a /drivers/md/dm-raid1.c
parent3b5ad0797c0e4049001f961a8b58f1d0ce532072 (diff)
some kmalloc/memset ->kzalloc (tree wide)
Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc). Here is a short excerpt of the semantic patch performing this transformation: @@ type T2; expression x; identifier f,fld; expression E; expression E1,E2; expression e1,e2,e3,y; statement S; @@ x = - kmalloc + kzalloc (E1,E2) ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\) - memset((T2)x,0,E1); @@ expression E1,E2,E3; @@ - kzalloc(E1 * E2,E3) + kcalloc(E1,E2,E3) [akpm@linux-foundation.org: get kcalloc args the right way around] Signed-off-by: Yoann Padioleau <padator@wanadoo.fr> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Bryan Wu <bryan.wu@analog.com> Acked-by: Jiri Slaby <jirislaby@gmail.com> Cc: Dave Airlie <airlied@linux.ie> Acked-by: Roland Dreier <rolandd@cisco.com> Cc: Jiri Kosina <jkosina@suse.cz> Acked-by: Dmitry Torokhov <dtor@mail.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Acked-by: Pierre Ossman <drzeus-list@drzeus.cx> Cc: Jeff Garzik <jeff@garzik.org> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Greg KH <greg@kroah.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/md/dm-raid1.c')
-rw-r--r--drivers/md/dm-raid1.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 1a876f9965e0..144071e70a93 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -951,13 +951,12 @@ static struct mirror_set *alloc_context(unsigned int nr_mirrors,
951 951
952 len = sizeof(*ms) + (sizeof(ms->mirror[0]) * nr_mirrors); 952 len = sizeof(*ms) + (sizeof(ms->mirror[0]) * nr_mirrors);
953 953
954 ms = kmalloc(len, GFP_KERNEL); 954 ms = kzalloc(len, GFP_KERNEL);
955 if (!ms) { 955 if (!ms) {
956 ti->error = "Cannot allocate mirror context"; 956 ti->error = "Cannot allocate mirror context";
957 return NULL; 957 return NULL;
958 } 958 }
959 959
960 memset(ms, 0, len);
961 spin_lock_init(&ms->lock); 960 spin_lock_init(&ms->lock);
962 961
963 ms->ti = ti; 962 ms->ti = ti;