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| author | Yajun Deng <yajun.deng@linux.dev> | 2024-01-31 06:19:13 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-02-22 21:24:46 +0300 |
| commit | 9c793854a04b4434686c6708b70b2c0d6489b710 (patch) | |
| tree | 29dabc04f13624d559636038fabe2f6e97ee5b79 /mm/mmap.c | |
| parent | 87beb00404b712da545fad55ed3c3060099eea2f (diff) | |
| download | linux-9c793854a04b4434686c6708b70b2c0d6489b710.tar.xz | |
mm/mmap: use SZ_{8K, 128K} helper macro
Use SZ_{8K, 128K} helper macro instead of the number in init_user_reserve
and reserve_mem_notifier. This is more readable.
Link: https://lkml.kernel.org/r/20240131031913.2058597-1-yajun.deng@linux.dev
Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index 476de5daf598..1f9e70242858 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -3845,7 +3845,7 @@ static int init_user_reserve(void) free_kbytes = K(global_zone_page_state(NR_FREE_PAGES)); - sysctl_user_reserve_kbytes = min(free_kbytes / 32, 1UL << 17); + sysctl_user_reserve_kbytes = min(free_kbytes / 32, SZ_128K); return 0; } subsys_initcall(init_user_reserve); @@ -3866,7 +3866,7 @@ static int init_admin_reserve(void) free_kbytes = K(global_zone_page_state(NR_FREE_PAGES)); - sysctl_admin_reserve_kbytes = min(free_kbytes / 32, 1UL << 13); + sysctl_admin_reserve_kbytes = min(free_kbytes / 32, SZ_8K); return 0; } subsys_initcall(init_admin_reserve); @@ -3898,12 +3898,12 @@ static int reserve_mem_notifier(struct notifier_block *nb, case MEM_ONLINE: /* Default max is 128MB. Leave alone if modified by operator. */ tmp = sysctl_user_reserve_kbytes; - if (0 < tmp && tmp < (1UL << 17)) + if (tmp > 0 && tmp < SZ_128K) init_user_reserve(); /* Default max is 8MB. Leave alone if modified by operator. */ tmp = sysctl_admin_reserve_kbytes; - if (0 < tmp && tmp < (1UL << 13)) + if (tmp > 0 && tmp < SZ_8K) init_admin_reserve(); break; |