lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

sched: No need for bootmem special cases

Browse Source 
As of commit dcce284 ("mm: Extend gfp masking to the page
allocator") and commit 7e85ee0 ("slab,slub: don't enable
interrupts during early boot"), the slab allocator makes
sure we don't attempt to sleep during boot.

Therefore, remove bootmem special cases from the scheduler
and use plain GFP_KERNEL instead.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1279225102-2572-1-git-send-email-penberg@cs.helsinki.fi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Pekka Enberg
2010-07-15 23:18:22 +03:00
committed by Ingo Molnar
parent bbc8cb5bae
commit 68c38fc3cb
3 changed files with 10 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
kernel/sched_cpupri.c
View File

@ -166,14 +166,10 @@ void cpupri_set(struct cpupri *cp, int cpu, int newpri)
*
* Returns: -ENOMEM if memory fails.
*/
int cpupri_init(struct cpupri *cp, bool bootmem)
int cpupri_init(struct cpupri *cp)
{
gfp_t gfp = GFP_KERNEL;
int i;
if (bootmem)
gfp = GFP_NOWAIT;
memset(cp, 0, sizeof(*cp));
for (i = 0; i < CPUPRI_NR_PRIORITIES; i++) {
@ -181,7 +177,7 @@ int cpupri_init(struct cpupri *cp, bool bootmem)
raw_spin_lock_init(&vec->lock);
vec->count = 0;
if (!zalloc_cpumask_var(&vec->mask, gfp))
if (!zalloc_cpumask_var(&vec->mask, GFP_KERNEL))
goto cleanup;
}