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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
commit8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be (patch)
treee9891aa6c295060d065adffd610c4f49ecf884f3 /include/linux/bio.h
parenta71852147516bc1cb5b0b3cbd13639bfd4022dc8 (diff)
Linux-libre 4.3.2-gnu
Diffstat (limited to 'include/linux/bio.h')
-rw-r--r--include/linux/bio.h38
1 files changed, 24 insertions, 14 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 9f46b625d..e9f0d062e 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -189,17 +189,6 @@ static inline void *bio_data(struct bio *bio)
__BIO_SEG_BOUNDARY(bvec_to_phys((b1)), bvec_to_phys((b2)) + (b2)->bv_len, queue_segment_boundary((q)))
/*
- * Check if adding a bio_vec after bprv with offset would create a gap in
- * the SG list. Most drivers don't care about this, but some do.
- */
-static inline bool bvec_gap_to_prev(struct bio_vec *bprv, unsigned int offset)
-{
- return offset || ((bprv->bv_offset + bprv->bv_len) & (PAGE_SIZE - 1));
-}
-
-#define bio_io_error(bio) bio_endio((bio), -EIO)
-
-/*
* drivers should _never_ use the all version - the bio may have been split
* before it got to the driver and the driver won't own all of it
*/
@@ -308,6 +297,21 @@ static inline void bio_cnt_set(struct bio *bio, unsigned int count)
atomic_set(&bio->__bi_cnt, count);
}
+static inline bool bio_flagged(struct bio *bio, unsigned int bit)
+{
+ return (bio->bi_flags & (1U << bit)) != 0;
+}
+
+static inline void bio_set_flag(struct bio *bio, unsigned int bit)
+{
+ bio->bi_flags |= (1U << bit);
+}
+
+static inline void bio_clear_flag(struct bio *bio, unsigned int bit)
+{
+ bio->bi_flags &= ~(1U << bit);
+}
+
enum bip_flags {
BIP_BLOCK_INTEGRITY = 1 << 0, /* block layer owns integrity data */
BIP_MAPPED_INTEGRITY = 1 << 1, /* ref tag has been remapped */
@@ -428,7 +432,14 @@ static inline struct bio *bio_clone_kmalloc(struct bio *bio, gfp_t gfp_mask)
}
-extern void bio_endio(struct bio *, int);
+extern void bio_endio(struct bio *);
+
+static inline void bio_io_error(struct bio *bio)
+{
+ bio->bi_error = -EIO;
+ bio_endio(bio);
+}
+
struct request_queue;
extern int bio_phys_segments(struct request_queue *, struct bio *);
@@ -442,7 +453,6 @@ void bio_chain(struct bio *, struct bio *);
extern int bio_add_page(struct bio *, struct page *, unsigned int,unsigned int);
extern int bio_add_pc_page(struct request_queue *, struct bio *, struct page *,
unsigned int, unsigned int);
-extern int bio_get_nr_vecs(struct block_device *);
struct rq_map_data;
extern struct bio *bio_map_user_iov(struct request_queue *,
const struct iov_iter *, gfp_t);
@@ -719,7 +729,7 @@ extern void bio_integrity_free(struct bio *);
extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int);
extern bool bio_integrity_enabled(struct bio *bio);
extern int bio_integrity_prep(struct bio *);
-extern void bio_integrity_endio(struct bio *, int);
+extern void bio_integrity_endio(struct bio *);
extern void bio_integrity_advance(struct bio *, unsigned int);
extern void bio_integrity_trim(struct bio *, unsigned int, unsigned int);
extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t);