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3 Commits

Author SHA1 Message Date
Linus Torvalds
f6fdd7d9c2 Don't allow normal users to set idle IO priority 
It has all the normal priority inversion problems.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 2005-08-20 18:51:29 -07:00
Anton Blanchard
cf36680887 [PATCH] move ioprio syscalls into syscalls.h 
- Make ioprio syscalls return long, like set/getpriority syscalls.
- Move function prototypes into syscalls.h so we can pick them up in the
  32/64bit compat code.

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 2005-07-07 18:23:37 -07:00
Jens Axboe
22e2c507c3 [PATCH] Update cfq io scheduler to time sliced design 
This updates the CFQ io scheduler to the new time sliced design (cfq
v3).  It provides full process fairness, while giving excellent
aggregate system throughput even for many competing processes.  It
supports io priorities, either inherited from the cpu nice value or set
directly with the ioprio_get/set syscalls.  The latter closely mimic
set/getpriority.

This import is based on my latest from -mm.

Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 2005-06-27 14:33:29 -07:00