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btrfs: use bio fields for op and flags

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The bio REQ_OP and bi_rw rq_flag_bits are now always setup, so there is
no need to pass around the rq_flag_bits bits too. btrfs users should
should access the bio insead.

Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Mike Christie
2016-06-05 14:31:54 -05:00
committed by Jens Axboe
parent b3d3fa5199
commit 81a75f6781
9 changed files with 54 additions and 67 deletions
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30
fs/btrfs/disk-io.c
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@@ -124,7 +124,6 @@ struct async_submit_bio {
struct list_head list;
extent_submit_bio_hook_t *submit_bio_start;
extent_submit_bio_hook_t *submit_bio_done;
int rw;
int mirror_num;
unsigned long bio_flags;
/*
@@ -797,7 +796,7 @@ static void run_one_async_start(struct btrfs_work *work)
int ret;
async = container_of(work, struct async_submit_bio, work);
ret = async->submit_bio_start(async->inode, async->rw, async->bio,
ret = async->submit_bio_start(async->inode, async->bio,
async->mirror_num, async->bio_flags,
async->bio_offset);
if (ret)
@@ -830,9 +829,8 @@ static void run_one_async_done(struct btrfs_work *work)
return;
}
async->submit_bio_done(async->inode, async->rw, async->bio,
async->mirror_num, async->bio_flags,
async->bio_offset);
async->submit_bio_done(async->inode, async->bio, async->mirror_num,
async->bio_flags, async->bio_offset);
}
static void run_one_async_free(struct btrfs_work *work)
@@ -844,7 +842,7 @@ static void run_one_async_free(struct btrfs_work *work)
}
int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
int rw, struct bio *bio, int mirror_num,
struct bio *bio, int mirror_num,
unsigned long bio_flags,
u64 bio_offset,
extent_submit_bio_hook_t *submit_bio_start,
@@ -857,7 +855,6 @@ int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
return -ENOMEM;
async->inode = inode;
async->rw = rw;
async->bio = bio;
async->mirror_num = mirror_num;
async->submit_bio_start = submit_bio_start;
@@ -903,9 +900,8 @@ static int btree_csum_one_bio(struct bio *bio)
return ret;
}
static int __btree_submit_bio_start(struct inode *inode, int rw,
struct bio *bio, int mirror_num,
unsigned long bio_flags,
static int __btree_submit_bio_start(struct inode *inode, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
/*
@@ -915,7 +911,7 @@ static int __btree_submit_bio_start(struct inode *inode, int rw,
return btree_csum_one_bio(bio);
}
static int __btree_submit_bio_done(struct inode *inode, int rw, struct bio *bio,
static int __btree_submit_bio_done(struct inode *inode, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
@@ -925,7 +921,7 @@ static int __btree_submit_bio_done(struct inode *inode, int rw, struct bio *bio,
* when we're called for a write, we're already in the async
* submission context. Just jump into btrfs_map_bio
*/
ret = btrfs_map_bio(BTRFS_I(inode)->root, rw, bio, mirror_num, 1);
ret = btrfs_map_bio(BTRFS_I(inode)->root, bio, mirror_num, 1);
if (ret) {
bio->bi_error = ret;
bio_endio(bio);
@@ -944,7 +940,7 @@ static int check_async_write(struct inode *inode, unsigned long bio_flags)
return 1;
}
static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
static int btree_submit_bio_hook(struct inode *inode, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
@@ -960,21 +956,19 @@ static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
bio, BTRFS_WQ_ENDIO_METADATA);
if (ret)
goto out_w_error;
ret = btrfs_map_bio(BTRFS_I(inode)->root, rw, bio,
mirror_num, 0);
ret = btrfs_map_bio(BTRFS_I(inode)->root, bio, mirror_num, 0);
} else if (!async) {
ret = btree_csum_one_bio(bio);
if (ret)
goto out_w_error;
ret = btrfs_map_bio(BTRFS_I(inode)->root, rw, bio,
mirror_num, 0);
ret = btrfs_map_bio(BTRFS_I(inode)->root, bio, mirror_num, 0);
} else {
/*
* kthread helpers are used to submit writes so that
* checksumming can happen in parallel across all CPUs
*/
ret = btrfs_wq_submit_bio(BTRFS_I(inode)->root->fs_info,
inode, rw, bio, mirror_num, 0,
inode, bio, mirror_num, 0,
bio_offset,
__btree_submit_bio_start,
__btree_submit_bio_done);