block: Abstract out bvec iterator

[mirror_ubuntu-bionic-kernel.git] / fs / btrfs / raid56.c

diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index d0ecfbd9cc9fc5e07a23173b0d1482d5eb9fb75d..9af0b25d991a8c64653b4fa20f4dc31c2794b943 100644 (file)
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -33,7 +33,6 @@
 #include <linux/raid/xor.h>
 #include <linux/vmalloc.h>
 #include <asm/div64.h>
-#include "compat.h"
 #include "ctree.h"
 #include "extent_map.h"
 #include "disk-io.h"
@@ -1033,8 +1032,8 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio,
 
        /* see if we can add this page onto our existing bio */
        if (last) {
-               last_end = (u64)last->bi_sector << 9;
-               last_end += last->bi_size;
+               last_end = (u64)last->bi_iter.bi_sector << 9;
+               last_end += last->bi_iter.bi_size;
 
                /*
                 * we can't merge these if they are from different
@@ -1054,9 +1053,9 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio,
        if (!bio)
                return -ENOMEM;
 
-       bio->bi_size = 0;
+       bio->bi_iter.bi_size = 0;
        bio->bi_bdev = stripe->dev->bdev;
-       bio->bi_sector = disk_start >> 9;
+       bio->bi_iter.bi_sector = disk_start >> 9;
        set_bit(BIO_UPTODATE, &bio->bi_flags);
 
        bio_add_page(bio, page, PAGE_CACHE_SIZE, 0);
@@ -1112,7 +1111,7 @@ static void index_rbio_pages(struct btrfs_raid_bio *rbio)
 
        spin_lock_irq(&rbio->bio_list_lock);
        bio_list_for_each(bio, &rbio->bio_list) {
-               start = (u64)bio->bi_sector << 9;
+               start = (u64)bio->bi_iter.bi_sector << 9;
                stripe_offset = start - rbio->raid_map[0];
                page_index = stripe_offset >> PAGE_CACHE_SHIFT;
 
@@ -1273,7 +1272,7 @@ cleanup:
 static int find_bio_stripe(struct btrfs_raid_bio *rbio,
                           struct bio *bio)
 {
-       u64 physical = bio->bi_sector;
+       u64 physical = bio->bi_iter.bi_sector;
        u64 stripe_start;
        int i;
        struct btrfs_bio_stripe *stripe;
@@ -1299,7 +1298,7 @@ static int find_bio_stripe(struct btrfs_raid_bio *rbio,
 static int find_logical_bio_stripe(struct btrfs_raid_bio *rbio,
                                   struct bio *bio)
 {
-       u64 logical = bio->bi_sector;
+       u64 logical = bio->bi_iter.bi_sector;
        u64 stripe_start;
        int i;
 
@@ -1603,8 +1602,8 @@ static int plug_cmp(void *priv, struct list_head *a, struct list_head *b)
                                                 plug_list);
        struct btrfs_raid_bio *rb = container_of(b, struct btrfs_raid_bio,
                                                 plug_list);
-       u64 a_sector = ra->bio_list.head->bi_sector;
-       u64 b_sector = rb->bio_list.head->bi_sector;
+       u64 a_sector = ra->bio_list.head->bi_iter.bi_sector;
+       u64 b_sector = rb->bio_list.head->bi_iter.bi_sector;
 
        if (a_sector < b_sector)
                return -1;
@@ -1692,7 +1691,7 @@ int raid56_parity_write(struct btrfs_root *root, struct bio *bio,
        if (IS_ERR(rbio))
                return PTR_ERR(rbio);
        bio_list_add(&rbio->bio_list, bio);
-       rbio->bio_list_bytes = bio->bi_size;
+       rbio->bio_list_bytes = bio->bi_iter.bi_size;
 
        /*
         * don't plug on full rbios, just get them out the door
@@ -2045,7 +2044,7 @@ int raid56_parity_recover(struct btrfs_root *root, struct bio *bio,
 
        rbio->read_rebuild = 1;
        bio_list_add(&rbio->bio_list, bio);
-       rbio->bio_list_bytes = bio->bi_size;
+       rbio->bio_list_bytes = bio->bi_iter.bi_size;
 
        rbio->faila = find_logical_bio_stripe(rbio, bio);
        if (rbio->faila == -1) {