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authorDavid Sterba <dsterba@suse.cz>2015-02-20 20:00:26 +0300
committerDavid Sterba <dsterba@suse.cz>2015-03-03 19:23:58 +0300
commit31e818fe7375d60de9953051f7bd1615cebc3681 (patch)
treec096eb4b8398ada2c04ab459705f436bde969beb /fs/btrfs/ctree.c
parentf8c269d7223f6b63cc5936eb191bc3b170d24342 (diff)
downloadlinux-31e818fe7375d60de9953051f7bd1615cebc3681.tar.xz
btrfs: cleanup, use kmalloc_array/kcalloc array helpers
Convert kmalloc(nr * size, ..) to kmalloc_array that does additional overflow checks, the zeroing variant is kcalloc. Signed-off-by: David Sterba <dsterba@suse.cz>
Diffstat (limited to 'fs/btrfs/ctree.c')
-rw-r--r--fs/btrfs/ctree.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 993642199326..8595fdd50a22 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -578,7 +578,7 @@ tree_mod_log_insert_move(struct btrfs_fs_info *fs_info,
if (!tree_mod_need_log(fs_info, eb))
return 0;
- tm_list = kzalloc(nr_items * sizeof(struct tree_mod_elem *), flags);
+ tm_list = kcalloc(nr_items, sizeof(struct tree_mod_elem *), flags);
if (!tm_list)
return -ENOMEM;
@@ -677,7 +677,7 @@ tree_mod_log_insert_root(struct btrfs_fs_info *fs_info,
if (log_removal && btrfs_header_level(old_root) > 0) {
nritems = btrfs_header_nritems(old_root);
- tm_list = kzalloc(nritems * sizeof(struct tree_mod_elem *),
+ tm_list = kcalloc(nritems, sizeof(struct tree_mod_elem *),
flags);
if (!tm_list) {
ret = -ENOMEM;
@@ -814,7 +814,7 @@ tree_mod_log_eb_copy(struct btrfs_fs_info *fs_info, struct extent_buffer *dst,
if (btrfs_header_level(dst) == 0 && btrfs_header_level(src) == 0)
return 0;
- tm_list = kzalloc(nr_items * 2 * sizeof(struct tree_mod_elem *),
+ tm_list = kcalloc(nr_items * 2, sizeof(struct tree_mod_elem *),
GFP_NOFS);
if (!tm_list)
return -ENOMEM;
@@ -905,8 +905,7 @@ tree_mod_log_free_eb(struct btrfs_fs_info *fs_info, struct extent_buffer *eb)
return 0;
nritems = btrfs_header_nritems(eb);
- tm_list = kzalloc(nritems * sizeof(struct tree_mod_elem *),
- GFP_NOFS);
+ tm_list = kcalloc(nritems, sizeof(struct tree_mod_elem *), GFP_NOFS);
if (!tm_list)
return -ENOMEM;