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authorChristoph Lameter <clameter@sgi.com>2006-01-08 12:00:47 +0300
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-09 07:12:41 +0300
commit930d915252edda7042c944ed3c30194a2f9fe163 (patch)
tree620452f11a9949943765b7a28e5b919f40f32b12 /include/linux/sched.h
parent21eac81f252fe31c3cf64b805a1e8652192f3a3b (diff)
downloadlinux-930d915252edda7042c944ed3c30194a2f9fe163.tar.xz
[PATCH] Swap Migration V5: PF_SWAPWRITE to allow writing to swap
Add PF_SWAPWRITE to control a processes permission to write to swap. - Use PF_SWAPWRITE in may_write_to_queue() instead of checking for kswapd and pdflush - Set PF_SWAPWRITE flag for kswapd and pdflush Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/sched.h')
-rw-r--r--include/linux/sched.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 7da33619d5d0..a74662077d60 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -895,6 +895,7 @@ do { if (atomic_dec_and_test(&(tsk)->usage)) __put_task_struct(tsk); } while(0)
#define PF_SYNCWRITE 0x00200000 /* I am doing a sync write */
#define PF_BORROWED_MM 0x00400000 /* I am a kthread doing use_mm */
#define PF_RANDOMIZE 0x00800000 /* randomize virtual address space */
+#define PF_SWAPWRITE 0x01000000 /* Allowed to write to swap */
/*
* Only the _current_ task can read/write to tsk->flags, but other