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btrfs: replace opencoded kvzalloc with the helper

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The logic of kmalloc and vmalloc fallback is opencoded in
several places, we can now use the existing helper.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2017-05-31 18:40:02 +02:00
parent 1e9d7291e5
commit 818e010bf9
3 changed files with 11 additions and 20 deletions
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9
fs/btrfs/check-integrity.c
View File

@ -94,7 +94,7 @@
#include <linux/mutex.h> #include <linux/mutex.h>
#include <linux/genhd.h> #include <linux/genhd.h>
#include <linux/blkdev.h> #include <linux/blkdev.h>
#include <linux/vmalloc.h> #include <linux/mm.h>
#include <linux/string.h> #include <linux/string.h>
#include "ctree.h" #include "ctree.h"
#include "disk-io.h" #include "disk-io.h"
@ -2920,14 +2920,11 @@ int btrfsic_mount(struct btrfs_fs_info *fs_info,
fs_info->sectorsize, PAGE_SIZE); fs_info->sectorsize, PAGE_SIZE);
return -1; return -1;
} }
state = kzalloc(sizeof(*state), GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT); state = kvzalloc(sizeof(*state), GFP_KERNEL);
if (!state) { if (!state) {
state = vzalloc(sizeof(*state)); pr_info("btrfs check-integrity: allocation failed!\n");
if (!state) {
pr_info("btrfs check-integrity: vzalloc() failed!\n");
return -1; return -1;
} }
}
if (!btrfsic_is_initialized) { if (!btrfsic_is_initialized) {
mutex_init(&btrfsic_mutex); mutex_init(&btrfsic_mutex);

7
fs/btrfs/raid56.c
View File

@ -31,7 +31,7 @@
#include <linux/hash.h> #include <linux/hash.h>
#include <linux/list_sort.h> #include <linux/list_sort.h>
#include <linux/raid/xor.h> #include <linux/raid/xor.h>
#include <linux/vmalloc.h> #include <linux/mm.h>
#include <asm/div64.h> #include <asm/div64.h>
#include "ctree.h" #include "ctree.h"
#include "extent_map.h" #include "extent_map.h"
@ -218,12 +218,9 @@ int btrfs_alloc_stripe_hash_table(struct btrfs_fs_info *info)
* of a failing mount. * of a failing mount.
*/ */
table_size = sizeof(*table) + sizeof(*h) * num_entries; table_size = sizeof(*table) + sizeof(*h) * num_entries;
table = kzalloc(table_size, GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT); table = kvzalloc(table_size, GFP_KERNEL);
if (!table) {
table = vzalloc(table_size);
if (!table) if (!table)
return -ENOMEM; return -ENOMEM;
}
spin_lock_init(&table->cache_lock); spin_lock_init(&table->cache_lock);
INIT_LIST_HEAD(&table->stripe_cache); INIT_LIST_HEAD(&table->stripe_cache);

5
fs/btrfs/send.c
View File

@ -6389,14 +6389,11 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)
alloc_size = sizeof(struct clone_root) * (arg->clone_sources_count + 1); alloc_size = sizeof(struct clone_root) * (arg->clone_sources_count + 1);
sctx->clone_roots = kzalloc(alloc_size, GFP_KERNEL | __GFP_NOWARN); sctx->clone_roots = kzalloc(alloc_size, GFP_KERNEL);
if (!sctx->clone_roots) {
sctx->clone_roots = vzalloc(alloc_size);
if (!sctx->clone_roots) { if (!sctx->clone_roots) {
ret = -ENOMEM; ret = -ENOMEM;
goto out; goto out;
} }
}
alloc_size = arg->clone_sources_count * sizeof(*arg->clone_sources); alloc_size = arg->clone_sources_count * sizeof(*arg->clone_sources);