[PATCH 09/35] btrfs: update __btrfs_map_block for bi_op transition
From: <hidden>
Date: 2016-02-24 19:47:46
Also in:
dm-devel, linux-bcache, linux-btrfs, linux-f2fs-devel, linux-fsdevel, linux-raid, linux-scsi, linux-xfs, lkml, ocfs2-devel
Subsystem:
btrfs file system, filesystems (vfs and infrastructure), the rest · Maintainers:
Chris Mason, David Sterba, Alexander Viro, Christian Brauner, Linus Torvalds
From: Mike Christie <redacted> We no longer pass in a bitmap of rq_flag_bits bits to __btrfs_map_block. It will always be a REQ_OP, or the btrfs specific REQ_GET_READ_MIRRORS, so this drops the bit tests. Signed-off-by: Mike Christie <redacted> --- fs/btrfs/extent-tree.c | 2 +- fs/btrfs/inode.c | 2 +- fs/btrfs/volumes.c | 55 +++++++++++++++++++++++++++----------------------- fs/btrfs/volumes.h | 4 ++-- 4 files changed, 34 insertions(+), 29 deletions(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 083783b..1db6bd0 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c@@ -2043,7 +2043,7 @@ int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr, /* Tell the block device(s) that the sectors can be discarded */ - ret = btrfs_map_block(root->fs_info, REQ_DISCARD, + ret = btrfs_map_block(root->fs_info, REQ_OP_DISCARD, bytenr, &num_bytes, &bbio, 0); /* Error condition is -ENOMEM */ if (!ret) {
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 19f38f5..49842d2 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c@@ -8279,7 +8279,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip, int i; map_length = orig_bio->bi_iter.bi_size; - ret = btrfs_map_block(root->fs_info, rw, start_sector << 9, + ret = btrfs_map_block(root->fs_info, orig_bio->bi_op, start_sector << 9, &map_length, NULL, 0); if (ret) return -EIO;
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 2be39f6..62fcbd2 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c@@ -5207,7 +5207,7 @@ void btrfs_put_bbio(struct btrfs_bio *bbio) kfree(bbio); } -static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, +static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int op, u64 logical, u64 *length, struct btrfs_bio **bbio_ret, int mirror_num, int need_raid_map)
@@ -5285,7 +5285,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, raid56_full_stripe_start *= full_stripe_len; } - if (rw & REQ_DISCARD) { + if (op == REQ_OP_DISCARD) { /* we don't discard raid56 yet */ if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) { ret = -EOPNOTSUPP;
@@ -5298,7 +5298,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, For other RAID types and for RAID[56] reads, just allow a single stripe (on a single disk). */ if ((map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) && - (rw & REQ_WRITE)) { + (op == REQ_OP_WRITE)) { max_len = stripe_len * nr_data_stripes(map) - (offset - raid56_full_stripe_start); } else {
@@ -5323,8 +5323,8 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, btrfs_dev_replace_set_lock_blocking(dev_replace); if (dev_replace_is_ongoing && mirror_num == map->num_stripes + 1 && - !(rw & (REQ_WRITE | REQ_DISCARD | REQ_GET_READ_MIRRORS)) && - dev_replace->tgtdev != NULL) { + op != REQ_OP_WRITE && op != REQ_OP_DISCARD && + op != REQ_GET_READ_MIRRORS && dev_replace->tgtdev != NULL) { /* * in dev-replace case, for repair case (that's the only * case where the mirror is selected explicitly when
@@ -5411,15 +5411,17 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, (offset + *length); if (map->type & BTRFS_BLOCK_GROUP_RAID0) { - if (rw & REQ_DISCARD) + if (op == REQ_OP_DISCARD) num_stripes = min_t(u64, map->num_stripes, stripe_nr_end - stripe_nr_orig); stripe_nr = div_u64_rem(stripe_nr, map->num_stripes, &stripe_index); - if (!(rw & (REQ_WRITE | REQ_DISCARD | REQ_GET_READ_MIRRORS))) + if (op != REQ_OP_WRITE && op != REQ_OP_DISCARD && + op != REQ_GET_READ_MIRRORS) mirror_num = 1; } else if (map->type & BTRFS_BLOCK_GROUP_RAID1) { - if (rw & (REQ_WRITE | REQ_DISCARD | REQ_GET_READ_MIRRORS)) + if (op == REQ_OP_WRITE || op == REQ_OP_DISCARD || + op == REQ_GET_READ_MIRRORS) num_stripes = map->num_stripes; else if (mirror_num) stripe_index = mirror_num - 1;
@@ -5432,7 +5434,8 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, } } else if (map->type & BTRFS_BLOCK_GROUP_DUP) { - if (rw & (REQ_WRITE | REQ_DISCARD | REQ_GET_READ_MIRRORS)) { + if (op == REQ_OP_WRITE || REQ_OP_DISCARD || + op == REQ_GET_READ_MIRRORS) { num_stripes = map->num_stripes; } else if (mirror_num) { stripe_index = mirror_num - 1;
@@ -5446,9 +5449,9 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, stripe_nr = div_u64_rem(stripe_nr, factor, &stripe_index); stripe_index *= map->sub_stripes; - if (rw & (REQ_WRITE | REQ_GET_READ_MIRRORS)) + if (op == REQ_OP_WRITE || op == REQ_GET_READ_MIRRORS) num_stripes = map->sub_stripes; - else if (rw & REQ_DISCARD) + else if (op == REQ_OP_DISCARD) num_stripes = min_t(u64, map->sub_stripes * (stripe_nr_end - stripe_nr_orig), map->num_stripes);
@@ -5466,7 +5469,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, } else if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) { if (need_raid_map && - ((rw & (REQ_WRITE | REQ_GET_READ_MIRRORS)) || + (op == REQ_OP_WRITE || op == REQ_GET_READ_MIRRORS || mirror_num > 1)) { /* push stripe_nr back to the start of the full stripe */ stripe_nr = div_u64(raid56_full_stripe_start,
@@ -5494,8 +5497,8 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, /* We distribute the parity blocks across stripes */ div_u64_rem(stripe_nr + stripe_index, map->num_stripes, &stripe_index); - if (!(rw & (REQ_WRITE | REQ_DISCARD | - REQ_GET_READ_MIRRORS)) && mirror_num <= 1) + if ((op != REQ_OP_WRITE && op != REQ_OP_DISCARD && + op != REQ_GET_READ_MIRRORS) && mirror_num <= 1) mirror_num = 1; } } else {
@@ -5512,9 +5515,9 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, num_alloc_stripes = num_stripes; if (dev_replace_is_ongoing) { - if (rw & (REQ_WRITE | REQ_DISCARD)) + if (op == REQ_OP_WRITE || op == REQ_OP_DISCARD) num_alloc_stripes <<= 1; - if (rw & REQ_GET_READ_MIRRORS) + if (op == REQ_GET_READ_MIRRORS) num_alloc_stripes++; tgtdev_indexes = num_stripes; }
@@ -5529,7 +5532,8 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, /* build raid_map */ if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK && - need_raid_map && ((rw & (REQ_WRITE | REQ_GET_READ_MIRRORS)) || + need_raid_map && + ((op == REQ_OP_WRITE || op == REQ_GET_READ_MIRRORS) || mirror_num > 1)) { u64 tmp; unsigned rot;
@@ -5554,7 +5558,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, RAID6_Q_STRIPE; } - if (rw & REQ_DISCARD) { + if (op == REQ_OP_DISCARD) { u32 factor = 0; u32 sub_stripes = 0; u64 stripes_per_dev = 0;
@@ -5634,14 +5638,15 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, } } - if (rw & (REQ_WRITE | REQ_GET_READ_MIRRORS)) + if (op == REQ_OP_WRITE || op == REQ_GET_READ_MIRRORS) max_errors = btrfs_chunk_max_errors(map); if (bbio->raid_map) sort_parity_stripes(bbio, num_stripes); tgtdev_indexes = 0; - if (dev_replace_is_ongoing && (rw & (REQ_WRITE | REQ_DISCARD)) && + if (dev_replace_is_ongoing && + (op == REQ_OP_WRITE || op == REQ_OP_DISCARD) && dev_replace->tgtdev != NULL) { int index_where_to_add; u64 srcdev_devid = dev_replace->srcdev->devid;
@@ -5676,7 +5681,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, } } num_stripes = index_where_to_add; - } else if (dev_replace_is_ongoing && (rw & REQ_GET_READ_MIRRORS) && + } else if (dev_replace_is_ongoing && (op == REQ_GET_READ_MIRRORS) && dev_replace->tgtdev != NULL) { u64 srcdev_devid = dev_replace->srcdev->devid; int index_srcdev = 0;
@@ -5751,21 +5756,21 @@ out: return ret; } -int btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, +int btrfs_map_block(struct btrfs_fs_info *fs_info, int op, u64 logical, u64 *length, struct btrfs_bio **bbio_ret, int mirror_num) { - return __btrfs_map_block(fs_info, rw, logical, length, bbio_ret, + return __btrfs_map_block(fs_info, op, logical, length, bbio_ret, mirror_num, 0); } /* For Scrub/replace */ -int btrfs_map_sblock(struct btrfs_fs_info *fs_info, int rw, +int btrfs_map_sblock(struct btrfs_fs_info *fs_info, int op, u64 logical, u64 *length, struct btrfs_bio **bbio_ret, int mirror_num, int need_raid_map) { - return __btrfs_map_block(fs_info, rw, logical, length, bbio_ret, + return __btrfs_map_block(fs_info, op, logical, length, bbio_ret, mirror_num, need_raid_map); }
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index febdb7b..c64229e 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h@@ -421,10 +421,10 @@ int btrfs_account_dev_extents_size(struct btrfs_device *device, u64 start, u64 end, u64 *length); void btrfs_get_bbio(struct btrfs_bio *bbio); void btrfs_put_bbio(struct btrfs_bio *bbio); -int btrfs_map_block(struct btrfs_fs_info *fs_info, int rw, +int btrfs_map_block(struct btrfs_fs_info *fs_info, int op, u64 logical, u64 *length, struct btrfs_bio **bbio_ret, int mirror_num); -int btrfs_map_sblock(struct btrfs_fs_info *fs_info, int rw, +int btrfs_map_sblock(struct btrfs_fs_info *fs_info, int op, u64 logical, u64 *length, struct btrfs_bio **bbio_ret, int mirror_num, int need_raid_map);
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1.8.3.1