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[PATCH] VM: add capabilites check to set_zone_reclaim

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Add a capability check to sys_set_zone_reclaim().  This syscall is not
something that should be available to a user.

Signed-off-by:  Martin Hicks <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Martin Hicks authored and Linus Torvalds committed 2005-09-05 00:05:44 -07:00
1 parent 242e546862
commit bce5f6ba34
2 files changed
+4
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include/linux/capability.h
+1
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@@ -233,6 +233,7 @@ typedef __u32 kernel_cap_t;
/* Allow enabling/disabling tagged queuing on SCSI controllers and sending
arbitrary SCSI commands */
/* Allow setting encryption key on loopback filesystem */
/* Allow setting zone reclaim policy */
#define CAP_SYS_ADMIN 21
mm/vmscan.c
+3
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@@ -1375,6 +1375,9 @@ asmlinkage long sys_set_zone_reclaim(unsigned int node, unsigned int zone,
struct zone *z;
int i;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
if (node >= MAX_NUMNODES || !node_online(node))
return -EINVAL;