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authorJason A. Donenfeld <Jason@zx2c4.com>2022-10-05 17:43:22 +0200
committerJason A. Donenfeld <Jason@zx2c4.com>2022-10-11 17:42:58 -0600
commita251c17aa558d8e3128a528af5cf8b9d7caae4fd (patch)
tree786ff9ec3f16fcb6e65336865c752e56573d7fed /mm
parentf743f16c548b1a2633e8b6034058d6475d7f26a3 (diff)
treewide: use get_random_u32() when possible
The prandom_u32() function has been a deprecated inline wrapper around get_random_u32() for several releases now, and compiles down to the exact same code. Replace the deprecated wrapper with a direct call to the real function. The same also applies to get_random_int(), which is just a wrapper around get_random_u32(). This was done as a basic find and replace. Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Yury Norov <yury.norov@gmail.com> Reviewed-by: Jan Kara <jack@suse.cz> # for ext4 Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> # for sch_cake Acked-by: Chuck Lever <chuck.lever@oracle.com> # for nfsd Acked-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> # for thunderbolt Acked-by: Darrick J. Wong <djwong@kernel.org> # for xfs Acked-by: Helge Deller <deller@gmx.de> # for parisc Acked-by: Heiko Carstens <hca@linux.ibm.com> # for s390 Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'mm')
-rw-r--r--mm/shmem.c2
-rw-r--r--mm/slab.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index 86214d48dd09..8280a5cb48df 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2332,7 +2332,7 @@ static struct inode *shmem_get_inode(struct super_block *sb, struct inode *dir,
inode_init_owner(&init_user_ns, inode, dir, mode);
inode->i_blocks = 0;
inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode);
- inode->i_generation = prandom_u32();
+ inode->i_generation = get_random_u32();
info = SHMEM_I(inode);
memset(info, 0, (char *)inode - (char *)info);
spin_lock_init(&info->lock);
diff --git a/mm/slab.c b/mm/slab.c
index a5486ff8362a..60cd19b9ee04 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2380,7 +2380,7 @@ static bool freelist_state_initialize(union freelist_init_state *state,
unsigned int rand;
/* Use best entropy available to define a random shift */
- rand = get_random_int();
+ rand = get_random_u32();
/* Use a random state if the pre-computed list is not available */
if (!cachep->random_seq) {