From e29e65aacbd9e628378084905cbcf62a9fa4a8cc Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 2 Aug 2011 12:32:02 +0100
Subject: [PATCH] dm: use vzalloc
Use vzalloc() instead of vmalloc()+memset().
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
---
drivers/md/dm-log.c | 3 +--
drivers/md/dm-snap-persistent.c | 3 +--
drivers/md/dm-table.c | 4 +---
3 files changed, 3 insertions(+), 7 deletions(-)
diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c
index 306ce123d6b43..3b52bb72bd1f0 100644
--- a/drivers/md/dm-log.c
+++ b/drivers/md/dm-log.c
@@ -492,7 +492,7 @@ static int create_log_context(struct dm_dirty_log *log, struct dm_target *ti,
memset(lc->sync_bits, (sync == NOSYNC) ? -1 : 0, bitset_size);
lc->sync_count = (sync == NOSYNC) ? region_count : 0;
- lc->recovering_bits = vmalloc(bitset_size);
+ lc->recovering_bits = vzalloc(bitset_size);
if (!lc->recovering_bits) {
DMWARN("couldn't allocate sync bitset");
vfree(lc->sync_bits);
@@ -504,7 +504,6 @@ static int create_log_context(struct dm_dirty_log *log, struct dm_target *ti,
kfree(lc);
return -ENOMEM;
}
- memset(lc->recovering_bits, 0, bitset_size);
lc->sync_search = 0;
log->context = lc;
diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c
index 39becbec4dfed..1a0acb8abdf67 100644
--- a/drivers/md/dm-snap-persistent.c
+++ b/drivers/md/dm-snap-persistent.c
@@ -174,10 +174,9 @@ static int alloc_area(struct pstore *ps)
if (!ps->area)
goto err_area;
- ps->zero_area = vmalloc(len);
+ ps->zero_area = vzalloc(len);
if (!ps->zero_area)
goto err_zero_area;
- memset(ps->zero_area, 0, len);
ps->header_area = vmalloc(len);
if (!ps->header_area)
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 3909fa259f553..8dc67555e7367 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -153,9 +153,7 @@ void *dm_vcalloc(unsigned long nmemb, unsigned long elem_size)
return NULL;
size = nmemb * elem_size;
- addr = vmalloc(size);
- if (addr)
- memset(addr, 0, size);
+ addr = vzalloc(size);
return addr;
}
--
2.30.2