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authorGary King <gking@nvidia.com>2010-09-09 08:59:51 +0800
committerSebastien Jan <s-jan@ti.com>2010-09-10 20:01:00 +0200
commit4d01174085038780d2d7c785edca4597b30970aa (patch)
treeb573992f7126b04481e715d1a0c3330f213f02cc
parent3902fc8545abffdd66ae34e0d8aee9e2592c585d (diff)
bounce: call flush_dcache_page after bounce_copy_vec
the bounced page needs to be flushed after data is copied into it, to ensure that architecture implementations can synchronize instruction and data caches if necessary. Signed-off-by: Gary King <gking@nvidia.com> Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
-rw-r--r--mm/bounce.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/bounce.c b/mm/bounce.c
index 13b6dad1eed2..1481de68184b 100644
--- a/mm/bounce.c
+++ b/mm/bounce.c
@@ -116,8 +116,8 @@ static void copy_to_high_bio_irq(struct bio *to, struct bio *from)
*/
vfrom = page_address(fromvec->bv_page) + tovec->bv_offset;
- flush_dcache_page(tovec->bv_page);
bounce_copy_vec(tovec, vfrom);
+ flush_dcache_page(tovec->bv_page);
}
}