diff options
| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2022-10-09 20:44:02 -0600 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2022-11-18 02:15:15 +0100 |
| commit | 8032bf1233a74627ce69b803608e650f3f35971c (patch) | |
| tree | 1e15cd719358130192c59b8d5a61a0c3c9fbe82c /mm/swapfile.c | |
| parent | 7f576b2593a978451416424e75f69ad1e3ae4efe (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 'mm/swapfile.c')
| -rw-r--r-- | mm/swapfile.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index 5fc1237a9f21..e9318305a24a 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -773,7 +773,7 @@ static void set_cluster_next(struct swap_info_struct *si, unsigned long next) if (si->highest_bit <= si->lowest_bit) return; next = si->lowest_bit + - prandom_u32_max(si->highest_bit - si->lowest_bit + 1); + get_random_u32_below(si->highest_bit - si->lowest_bit + 1); next = ALIGN_DOWN(next, SWAP_ADDRESS_SPACE_PAGES); next = max_t(unsigned int, next, si->lowest_bit); } @@ -3089,7 +3089,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) */ for_each_possible_cpu(cpu) { per_cpu(*p->cluster_next_cpu, cpu) = - 1 + prandom_u32_max(p->highest_bit); + 1 + get_random_u32_below(p->highest_bit); } nr_cluster = DIV_ROUND_UP(maxpages, SWAPFILE_CLUSTER); |