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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2020-04-01 21:10:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-02 09:35:31 -0700
commit964b692daf3018ae4b45285c3bcbb2d897cb4b40 (patch)
tree44b1368d1612a5fec589997920239bed281a8ad8 /kernel
parent6467552ca64c4ddd2b83ed73192107d7145f533b (diff)
downloadlinux-964b692daf3018ae4b45285c3bcbb2d897cb4b40.tar.bz2
mm/compaction: really limit compact_unevictable_allowed to 0 and 1
The proc file `compact_unevictable_allowed' should allow 0 and 1 only, the `extra*' attribues have been set properly but without proc_dointvec_minmax() as the `proc_handler' the limit will not be enforced. Use proc_dointvec_minmax() as the `proc_handler' to enfoce the valid specified range. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Mel Gorman <mgorman@techsingularity.net> Link: http://lkml.kernel.org/r/20200303202054.gsosv7fsx2ma3cic@linutronix.de Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sysctl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 94638f695e60..cb650bb9da68 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1467,7 +1467,7 @@ static struct ctl_table vm_table[] = {
.data = &sysctl_compact_unevictable_allowed,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec,
+ .proc_handler = proc_dointvec_minmax,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},