AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

[S390] qdio: make sure qdr is aligned to page size

Browse Source 
kzalloc does not guarantee the required alignment of qdr to page size,
use get_zeroed_page instead.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
This commit is contained in:
Jan Glauber 2008-08-01 16:39:17 +02:00 committed by Martin Schwidefsky
parent 7e9238fbc1
commit 3b8e3004ae
2 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/s390/cio/qdio_main.c
View File

@ -1355,7 +1355,7 @@ int qdio_allocate(struct qdio_initialize *init_data)
goto out_rel;
/* qdr is used in ccw1.cda which is u32 */
irq_ptr->qdr = kzalloc(sizeof(struct qdr), GFP_KERNEL | GFP_DMA);
irq_ptr->qdr = (struct qdr *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
if (!irq_ptr->qdr)
goto out_rel;
WARN_ON((unsigned long)irq_ptr->qdr & 0xfff);

2
drivers/s390/cio/qdio_setup.c
View File

@ -325,7 +325,7 @@ void qdio_release_memory(struct qdio_irq *irq_ptr)
kmem_cache_free(qdio_q_cache, q);
}
}
kfree(irq_ptr->qdr);
free_page((unsigned long) irq_ptr->qdr);
free_page(irq_ptr->chsc_page);
free_page((unsigned long) irq_ptr);
}