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authorMing Lei <ming.lei@canonical.com>2013-11-26 12:43:37 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-12-08 17:56:37 -0800
commit0d6077f8b48ed2dce8f2466a76c0d574a3b4dbe9 (patch)
tree2cee9d850ad7bf0ee2e933ed7259a9267fe7aafa /lib/scatterlist.c
parente05a1fd9468bc99bf67bd81601d46d84d93c21c8 (diff)
downloadlinux-stericsson-0d6077f8b48ed2dce8f2466a76c0d574a3b4dbe9.tar.gz
lib/scatterlist: export sg_miter_skip()
sg_copy_buffer() can't meet demand for some drrivers(such usb mass storage), so we have to use the sg_miter_* APIs to access sg buffer, then need export sg_miter_skip() for these drivers. The API is needed for converting to sg_miter_* APIs in USB storage driver for accessing sg buffer. Acked-by: Andrew Morton <akpm@linux-foundation.org> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Ming Lei <ming.lei@canonical.com> Reviewed-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/scatterlist.c')
-rw-r--r--lib/scatterlist.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/scatterlist.c b/lib/scatterlist.c
index d16fa295ae1d..3a8e8e8fb2a5 100644
--- a/lib/scatterlist.c
+++ b/lib/scatterlist.c
@@ -495,7 +495,7 @@ static bool sg_miter_get_next_page(struct sg_mapping_iter *miter)
* true if @miter contains the valid mapping. false if end of sg
* list is reached.
*/
-static bool sg_miter_skip(struct sg_mapping_iter *miter, off_t offset)
+bool sg_miter_skip(struct sg_mapping_iter *miter, off_t offset)
{
sg_miter_stop(miter);
@@ -513,6 +513,7 @@ static bool sg_miter_skip(struct sg_mapping_iter *miter, off_t offset)
return true;
}
+EXPORT_SYMBOL(sg_miter_skip);
/**
* sg_miter_next - proceed mapping iterator to the next mapping