blk-merge.c (a85b36375b05f70301f15cafb9030cae7c789f76) blk-merge.c (b6dc6198ebe855d70e6f68d279c4015fe5d73e7b)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Functions related to segment and merge handling
4 */
5#include <linux/kernel.h>
6#include <linux/module.h>
7#include <linux/bio.h>
8#include <linux/blkdev.h>

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90 return bio_will_gap(req->q, req, req->biotail, bio);
91}
92
93static inline bool req_gap_front_merge(struct request *req, struct bio *bio)
94{
95 return bio_will_gap(req->q, NULL, bio, req->bio);
96}
97
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Functions related to segment and merge handling
4 */
5#include <linux/kernel.h>
6#include <linux/module.h>
7#include <linux/bio.h>
8#include <linux/blkdev.h>

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90 return bio_will_gap(req->q, req, req->biotail, bio);
91}
92
93static inline bool req_gap_front_merge(struct request *req, struct bio *bio)
94{
95 return bio_will_gap(req->q, NULL, bio, req->bio);
96}
97
98/*
99 * The max size one bio can handle is UINT_MAX becasue bvec_iter.bi_size
100 * is defined as 'unsigned int', meantime it has to be aligned to with the
101 * logical block size, which is the minimum accepted unit by hardware.
102 */
103static unsigned int bio_allowed_max_sectors(struct request_queue *q)
104{
105 return round_down(UINT_MAX, queue_logical_block_size(q)) >> 9;
106}
107
98static struct bio *bio_split_discard(struct bio *bio, struct request_queue *q,
99 unsigned *nsegs, struct bio_set *bs)
100{
101 unsigned int max_discard_sectors, granularity;
102 int alignment;
103 sector_t tmp;
104 unsigned split_sectors;
105

--- 1033 unchanged lines hidden --- 		108static struct bio *bio_split_discard(struct bio *bio, struct request_queue *q,
109 unsigned *nsegs, struct bio_set *bs)
110{
111 unsigned int max_discard_sectors, granularity;
112 int alignment;
113 sector_t tmp;
114 unsigned split_sectors;
115

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