xiaomi-sm8450/android_kernel_xiaomi_sm8450
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[PATCH] md: convert md to use kzalloc throughout

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Replace multiple kmalloc/memset pairs with kzalloc calls.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
NeilBrown
2006-01-06 00:20:32 -08:00
committed by Linus Torvalds
parent 2d1f3b5d1b
commit 9ffae0cf3e
8 changed files with 24 additions and 53 deletions
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20
drivers/md/raid1.c
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@@ -61,10 +61,8 @@ static void * r1bio_pool_alloc(gfp_t gfp_flags, void *data)
int size = offsetof(r1bio_t, bios[pi->raid_disks]);
/* allocate a r1bio with room for raid_disks entries in the bios array */
r1_bio = kmalloc(size, gfp_flags);
if (r1_bio)
memset(r1_bio, 0, size);
else
r1_bio = kzalloc(size, gfp_flags);
if (!r1_bio)
unplug_slaves(pi->mddev);
return r1_bio;
@@ -711,13 +709,11 @@ static struct page **alloc_behind_pages(struct bio *bio)
{
int i;
struct bio_vec *bvec;
struct page **pages = kmalloc(bio->bi_vcnt * sizeof(struct page *),
struct page **pages = kzalloc(bio->bi_vcnt * sizeof(struct page *),
GFP_NOIO);
if (unlikely(!pages))
goto do_sync_io;
memset(pages, 0, bio->bi_vcnt * sizeof(struct page *));
bio_for_each_segment(bvec, bio, i) {
pages[i] = alloc_page(GFP_NOIO);
if (unlikely(!pages[i]))
@@ -1770,19 +1766,16 @@ static int run(mddev_t *mddev)
* bookkeeping area. [whatever we allocate in run(),
* should be freed in stop()]
*/
conf = kmalloc(sizeof(conf_t), GFP_KERNEL);
conf = kzalloc(sizeof(conf_t), GFP_KERNEL);
mddev->private = conf;
if (!conf)
goto out_no_mem;
memset(conf, 0, sizeof(*conf));
conf->mirrors = kmalloc(sizeof(struct mirror_info)*mddev->raid_disks,
conf->mirrors = kzalloc(sizeof(struct mirror_info)*mddev->raid_disks,
GFP_KERNEL);
if (!conf->mirrors)
goto out_no_mem;
memset(conf->mirrors, 0, sizeof(struct mirror_info)*mddev->raid_disks);
conf->tmppage = alloc_page(GFP_KERNEL);
if (!conf->tmppage)
goto out_no_mem;
@@ -1992,13 +1985,12 @@ static int raid1_reshape(mddev_t *mddev, int raid_disks)
kfree(newpoolinfo);
return -ENOMEM;
}
newmirrors = kmalloc(sizeof(struct mirror_info) * raid_disks, GFP_KERNEL);
newmirrors = kzalloc(sizeof(struct mirror_info) * raid_disks, GFP_KERNEL);
if (!newmirrors) {
kfree(newpoolinfo);
mempool_destroy(newpool);
return -ENOMEM;
}
memset(newmirrors, 0, sizeof(struct mirror_info)*raid_disks);
raise_barrier(conf);