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mm: bounce: Use local_irq_save_nort 

kmap_atomic() is preemptible on RT.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2013-01-09 10:33:09 +01:00 committed by Alibek Omarov
parent 3026662099
commit d269738358
1 changed files with 2 additions and 2 deletions
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4
mm/bounce.c
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@ -51,11 +51,11 @@ static void bounce_copy_vec(struct bio_vec *to, unsigned char *vfrom)
unsigned long flags;
unsigned char *vto;
local_irq_save(flags);
local_irq_save_nort(flags);
vto = kmap_atomic(to->bv_page);
memcpy(vto + to->bv_offset, vfrom, to->bv_len);
kunmap_atomic(vto);
local_irq_restore(flags);
local_irq_restore_nort(flags);
}
#else /* CONFIG_HIGHMEM */