bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 06:44:00 -04:00
Code Issues Packages Projects Releases Wiki Activity

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

Browse Source 
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook <kees@kernel.org>
This commit is contained in:
Kees Cook
2026-02-20 23:49:23 -08:00
parent d39a1d7486
commit 69050f8d6d
8016 changed files with 20055 additions and 20913 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
fs/btrfs/raid56.c
View File

@@ -208,7 +208,7 @@ int btrfs_alloc_stripe_hash_table(struct btrfs_fs_info *info)
* Try harder to allocate and fallback to vmalloc to lower the chance
* of a failing mount.
*/
table = kvzalloc(struct_size(table, table, num_entries), GFP_KERNEL);
table = kvzalloc_flex(*table, table, num_entries, GFP_KERNEL);
if (!table)
return -ENOMEM;
@@ -1090,13 +1090,15 @@ static struct btrfs_raid_bio *alloc_rbio(struct btrfs_fs_info *fs_info,
ASSERT(real_stripes >= 2);
ASSERT(real_stripes <= U8_MAX);
rbio = kzalloc(sizeof(*rbio), GFP_NOFS);
rbio = kzalloc_obj(*rbio, GFP_NOFS);
if (!rbio)
return ERR_PTR(-ENOMEM);
rbio->stripe_pages = kcalloc(num_pages, sizeof(struct page *),
GFP_NOFS);
rbio->bio_paddrs = kcalloc(num_sectors * sector_nsteps, sizeof(phys_addr_t), GFP_NOFS);
rbio->stripe_paddrs = kcalloc(num_sectors * sector_nsteps, sizeof(phys_addr_t), GFP_NOFS);
rbio->stripe_pages = kzalloc_objs(struct page *, num_pages, GFP_NOFS);
rbio->bio_paddrs = kzalloc_objs(phys_addr_t,
num_sectors * sector_nsteps, GFP_NOFS);
rbio->stripe_paddrs = kzalloc_objs(phys_addr_t,
num_sectors * sector_nsteps,
GFP_NOFS);
rbio->finish_pointers = kcalloc(real_stripes, sizeof(void *), GFP_NOFS);
rbio->error_bitmap = bitmap_zalloc(num_sectors, GFP_NOFS);
rbio->stripe_uptodate_bitmap = bitmap_zalloc(num_sectors, GFP_NOFS);