summaryrefslogtreecommitdiff
path: root/include/uapi/linux/mempolicy.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-13 13:28:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-13 13:28:32 -0700
commit0b381a286e5d748b1fd80095d3dd52326819742f (patch)
treed72fca56123520b9c78661137f8a02b6ad26f95b /include/uapi/linux/mempolicy.h
parent034b5eeb6bc783e7f60e11299154556e65699e7a (diff)
parent5921e6f8809b1616932ca4afd40fe449faa8fd88 (diff)
Merge tag 'disintegrate-main-20121013' of git://git.infradead.org/users/dhowells/linux-headers
Pull UAPI disintegration for include/linux/{,byteorder/}*.h from David Howells: "The patches contained herein do the following: (1) Remove kernel-only stuff in linux/ppp-comp.h from the UAPI. I checked this with Paul Mackerras before I created the patch and he suggested some extra bits to unexport. (2) Remove linux/blk_types.h entirely from the UAPI as none of it is userspace applicable, and remove from the UAPI that part of linux/fs.h that was the reason for linux/blk_types.h being exported in the first place. I discussed this with Jens Axboe before creating the patch. (3) The big patch of the series to disintegrate include/linux/*.h as a unit. This could be split up, though there would be collisions in moving stuff between the two Kbuild files when the parts are merged as that file is sorted alphabetically rather than being grouped by subsystem. Of this set of headers, 17 files have changed in the UAPI exported region since the 4th and only 8 since the 9th so there isn't much change in this area - as one might expect. It should be pretty obvious and straightforward if it does come to fixing up: stuff in __KERNEL__ guards stays where it is and stuff outside moves to the same file in the include/uapi/linux/ directory. If a new file appears then things get a bit more complicated as the "headers +=" line has to move to include/uapi/linux/Kbuild. Only one new file has appeared since the 9th and I judge this type of event relatively unlikely. (4) A patch to disintegrate include/linux/byteorder/*.h as a unit. Signed-off-by: David Howells <dhowells@redhat.com>" * tag 'disintegrate-main-20121013' of git://git.infradead.org/users/dhowells/linux-headers: UAPI: (Scripted) Disintegrate include/linux/byteorder UAPI: (Scripted) Disintegrate include/linux UAPI: Unexport linux/blk_types.h UAPI: Unexport part of linux/ppp-comp.h
Diffstat (limited to 'include/uapi/linux/mempolicy.h')
-rw-r--r--include/uapi/linux/mempolicy.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/include/uapi/linux/mempolicy.h b/include/uapi/linux/mempolicy.h
new file mode 100644
index 000000000000..23e62e0537e2
--- /dev/null
+++ b/include/uapi/linux/mempolicy.h
@@ -0,0 +1,64 @@
+/*
+ * NUMA memory policies for Linux.
+ * Copyright 2003,2004 Andi Kleen SuSE Labs
+ */
+#ifndef _UAPI_LINUX_MEMPOLICY_H
+#define _UAPI_LINUX_MEMPOLICY_H
+
+#include <linux/errno.h>
+
+
+/*
+ * Both the MPOL_* mempolicy mode and the MPOL_F_* optional mode flags are
+ * passed by the user to either set_mempolicy() or mbind() in an 'int' actual.
+ * The MPOL_MODE_FLAGS macro determines the legal set of optional mode flags.
+ */
+
+/* Policies */
+enum {
+ MPOL_DEFAULT,
+ MPOL_PREFERRED,
+ MPOL_BIND,
+ MPOL_INTERLEAVE,
+ MPOL_MAX, /* always last member of enum */
+};
+
+enum mpol_rebind_step {
+ MPOL_REBIND_ONCE, /* do rebind work at once(not by two step) */
+ MPOL_REBIND_STEP1, /* first step(set all the newly nodes) */
+ MPOL_REBIND_STEP2, /* second step(clean all the disallowed nodes)*/
+ MPOL_REBIND_NSTEP,
+};
+
+/* Flags for set_mempolicy */
+#define MPOL_F_STATIC_NODES (1 << 15)
+#define MPOL_F_RELATIVE_NODES (1 << 14)
+
+/*
+ * MPOL_MODE_FLAGS is the union of all possible optional mode flags passed to
+ * either set_mempolicy() or mbind().
+ */
+#define MPOL_MODE_FLAGS (MPOL_F_STATIC_NODES | MPOL_F_RELATIVE_NODES)
+
+/* Flags for get_mempolicy */
+#define MPOL_F_NODE (1<<0) /* return next IL mode instead of node mask */
+#define MPOL_F_ADDR (1<<1) /* look up vma using address */
+#define MPOL_F_MEMS_ALLOWED (1<<2) /* return allowed memories */
+
+/* Flags for mbind */
+#define MPOL_MF_STRICT (1<<0) /* Verify existing pages in the mapping */
+#define MPOL_MF_MOVE (1<<1) /* Move pages owned by this process to conform to mapping */
+#define MPOL_MF_MOVE_ALL (1<<2) /* Move every page to conform to mapping */
+#define MPOL_MF_INTERNAL (1<<3) /* Internal flags start here */
+
+/*
+ * Internal flags that share the struct mempolicy flags word with
+ * "mode flags". These flags are allocated from bit 0 up, as they
+ * are never OR'ed into the mode in mempolicy API arguments.
+ */
+#define MPOL_F_SHARED (1 << 0) /* identify shared policies */
+#define MPOL_F_LOCAL (1 << 1) /* preferred local allocation */
+#define MPOL_F_REBINDING (1 << 2) /* identify policies in rebinding */
+
+
+#endif /* _UAPI_LINUX_MEMPOLICY_H */