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authorThomas Zimmermann <tzimmermann@suse.de>2023-03-13 09:27:50 +0100
committerThomas Zimmermann <tzimmermann@suse.de>2023-03-13 09:27:50 +0100
commita1eccc574f977bd21a4ec8ac54bd73a2756bd281 (patch)
tree4bf81d9f35b36aebb150128e865193bf8984bf8c /include/linux/bvec.h
parent3e853b9f89e4bcc8aa342fa350d83ff0df67d7e9 (diff)
parentfe15c26ee26efa11741a7b632e9f23b01aca4cc6 (diff)
Merge drm/drm-next into drm-misc-next
Backmerging to get v6.3-rc1 and sync with the other DRM trees. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'include/linux/bvec.h')
-rw-r--r--include/linux/bvec.h41
1 files changed, 40 insertions, 1 deletions
diff --git a/include/linux/bvec.h b/include/linux/bvec.h
index 35c25dff651a..555aae5448ae 100644
--- a/include/linux/bvec.h
+++ b/include/linux/bvec.h
@@ -12,7 +12,6 @@
#include <linux/errno.h>
#include <linux/limits.h>
#include <linux/minmax.h>
-#include <linux/mm.h>
#include <linux/types.h>
struct page;
@@ -35,6 +34,46 @@ struct bio_vec {
unsigned int bv_offset;
};
+/**
+ * bvec_set_page - initialize a bvec based off a struct page
+ * @bv: bvec to initialize
+ * @page: page the bvec should point to
+ * @len: length of the bvec
+ * @offset: offset into the page
+ */
+static inline void bvec_set_page(struct bio_vec *bv, struct page *page,
+ unsigned int len, unsigned int offset)
+{
+ bv->bv_page = page;
+ bv->bv_len = len;
+ bv->bv_offset = offset;
+}
+
+/**
+ * bvec_set_folio - initialize a bvec based off a struct folio
+ * @bv: bvec to initialize
+ * @folio: folio the bvec should point to
+ * @len: length of the bvec
+ * @offset: offset into the folio
+ */
+static inline void bvec_set_folio(struct bio_vec *bv, struct folio *folio,
+ unsigned int len, unsigned int offset)
+{
+ bvec_set_page(bv, &folio->page, len, offset);
+}
+
+/**
+ * bvec_set_virt - initialize a bvec based on a virtual address
+ * @bv: bvec to initialize
+ * @vaddr: virtual address to set the bvec to
+ * @len: length of the bvec
+ */
+static inline void bvec_set_virt(struct bio_vec *bv, void *vaddr,
+ unsigned int len)
+{
+ bvec_set_page(bv, virt_to_page(vaddr), len, offset_in_page(vaddr));
+}
+
struct bvec_iter {
sector_t bi_sector; /* device address in 512 byte
sectors */