author: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> 2008-09-11 18:35:39 +0200
committer: Jens Axboe <jens.axboe@oracle.com> 2008-09-11 18:35:39 +0200
commit: 50bed2e2862a8f3a4f7d683d0d27292e71ef18b9
parent: 2dc75d3c3b49c64fd26b4832a7efb75546cb3fc5
Commit Summary:
Diffstat:
1 file changed, 4 insertions, 0 deletions
diff --git a/lib/scatterlist.c b/lib/scatterlist.c
index 876ba6d5b670..8d2688ff1352 100644
--- a/lib/scatterlist.c
+++ b/lib/scatterlist.c
@@ -422,9 +422,12 @@ static size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents,
{
unsigned int offset = 0;
struct sg_mapping_iter miter;
+ unsigned long flags;
sg_miter_start(&miter, sgl, nents, SG_MITER_ATOMIC);
+ local_irq_save(flags);
+
while (sg_miter_next(&miter) && offset < buflen) {
unsigned int len;
@@ -442,6 +445,7 @@ static size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents,
sg_miter_stop(&miter);
+ local_irq_restore(flags);
return offset;
}