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| author | Christoph Lameter <clameter@sgi.com> | 2006-01-08 01:00:47 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-08 20:12:41 -0800 |
| commit | 930d915252edda7042c944ed3c30194a2f9fe163 (patch) | |
| tree | 620452f11a9949943765b7a28e5b919f40f32b12 /include/linux/sched.h | |
| parent | 21eac81f252fe31c3cf64b805a1e8652192f3a3b (diff) | |
| download | linux-930d915252edda7042c944ed3c30194a2f9fe163.tar.gz linux-930d915252edda7042c944ed3c30194a2f9fe163.tar.bz2 linux-930d915252edda7042c944ed3c30194a2f9fe163.zip | |
[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.h | 1 |
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 |