diff options
| author | Arve Hjønnevåg <arve@android.com> | 2009-02-17 14:51:02 -0800 |
|---|---|---|
| committer | Arve Hjønnevåg <arve@android.com> | 2009-04-07 16:42:54 -0700 |
| commit | d620f695290e4ffb1586420ba1dbbb5b2c8c075d (patch) | |
| tree | 90a70b89030746e6471c4dbb543880f590f3fd42 /kernel | |
| parent | e4c9c5d7d6d5deb124083678fe5d839d3133f60a (diff) | |
mm: Add min_free_order_shift tunable.
By default the kernel tries to keep half as much memory free at each
order as it does for one order below. This can be too agressive when
running without swap.
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sysctl.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index c5ef44ff850f..0e3d9aa2876e 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -76,6 +76,7 @@ extern int suid_dumpable; extern char core_pattern[]; extern int pid_max; extern int min_free_kbytes; +extern int min_free_order_shift; extern int pid_max_min, pid_max_max; extern int sysctl_drop_caches; extern int percpu_pagelist_fraction; @@ -1097,6 +1098,14 @@ static struct ctl_table vm_table[] = { .extra1 = &zero, }, { + .ctl_name = CTL_UNNUMBERED, + .procname = "min_free_order_shift", + .data = &min_free_order_shift, + .maxlen = sizeof(min_free_order_shift), + .mode = 0644, + .proc_handler = &proc_dointvec + }, + { .ctl_name = VM_PERCPU_PAGELIST_FRACTION, .procname = "percpu_pagelist_fraction", .data = &percpu_pagelist_fraction, |