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mm/hugetlb: constify ctl_table arguments of utility functions

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The sysctl core is preparing to only expose instances of struct ctl_table
as "const".  This will also affect the ctl_table argument of sysctl
handlers.

As the function prototype of all sysctl handlers throughout the tree
needs to stay consistent that change will be done in one commit.

To reduce the size of that final commit, switch utility functions which
are not bound by "typedef proc_handler" to "const struct ctl_table".

No functional change.

Link: https://lkml.kernel.org/r/20240518-sysctl-const-handler-hugetlb-v1-1-47e34e2871b2@weissschuh.net
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
Cc: Joel Granados <j.granados@samsung.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Thomas Weißschuh 2024-05-18 16:00:04 +02:00 committed by Andrew Morton
parent 22a40d14b5
commit 525c303049
1 changed files with 2 additions and 2 deletions
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4
mm/hugetlb.c
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@ -4911,7 +4911,7 @@ static unsigned int allowed_mems_nr(struct hstate *h)
}
#ifdef CONFIG_SYSCTL
static int proc_hugetlb_doulongvec_minmax(struct ctl_table *table, int write,
static int proc_hugetlb_doulongvec_minmax(const struct ctl_table *table, int write,
void *buffer, size_t *length,
loff_t *ppos, unsigned long *out)
{
@ -4928,7 +4928,7 @@ static int proc_hugetlb_doulongvec_minmax(struct ctl_table *table, int write,
}
static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
struct ctl_table *table, int write,
const struct ctl_table *table, int write,
void *buffer, size_t *length, loff_t *ppos)
{
struct hstate *h = &default_hstate;