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authorJason A. Donenfeld <Jason@zx2c4.com>2022-10-09 20:44:02 -0600
committerJason A. Donenfeld <Jason@zx2c4.com>2022-11-18 02:15:15 +0100
commit8032bf1233a74627ce69b803608e650f3f35971c (patch)
tree1e15cd719358130192c59b8d5a61a0c3c9fbe82c /fs/ext4
parent7f576b2593a978451416424e75f69ad1e3ae4efe (diff)
treewide: use get_random_u32_below() instead of deprecated function
This is a simple mechanical transformation done by: @@ expression E; @@ - prandom_u32_max + get_random_u32_below (E) Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Darrick J. Wong <djwong@kernel.org> # for xfs Reviewed-by: SeongJae Park <sj@kernel.org> # for damon Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> # for infiniband Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> # for arm Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # for mmc Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/ialloc.c2
-rw-r--r--fs/ext4/super.c5
2 files changed, 3 insertions, 4 deletions
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index e9bc46684106..9fc1af8e19a3 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -465,7 +465,7 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent,
ext4fs_dirhash(parent, qstr->name, qstr->len, &hinfo);
parent_group = hinfo.hash % ngroups;
} else
- parent_group = prandom_u32_max(ngroups);
+ parent_group = get_random_u32_below(ngroups);
for (i = 0; i < ngroups; i++) {
g = (parent_group + i) % ngroups;
get_orlov_stats(sb, g, flex_size, &stats);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 7cdd2138c897..63ef74eb8091 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3778,7 +3778,7 @@ cont_thread:
}
if (!progress) {
elr->lr_next_sched = jiffies +
- prandom_u32_max(EXT4_DEF_LI_MAX_START_DELAY * HZ);
+ get_random_u32_below(EXT4_DEF_LI_MAX_START_DELAY * HZ);
}
if (time_before(elr->lr_next_sched, next_wakeup))
next_wakeup = elr->lr_next_sched;
@@ -3925,8 +3925,7 @@ static struct ext4_li_request *ext4_li_request_new(struct super_block *sb,
* spread the inode table initialization requests
* better.
*/
- elr->lr_next_sched = jiffies + prandom_u32_max(
- EXT4_DEF_LI_MAX_START_DELAY * HZ);
+ elr->lr_next_sched = jiffies + get_random_u32_below(EXT4_DEF_LI_MAX_START_DELAY * HZ);
return elr;
}