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Message-Id: <1446674909-5371-10-git-send-email-mchristi@redhat.com>
Date: Wed, 4 Nov 2015 16:08:06 -0600
From: mchristi@...hat.com
To: linux-fsdevel@...r.kernel.org, dm-devel@...hat.com,
linux-raid@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-scsi@...r.kernel.org, drbd-dev@...ts.linbit.com
Cc: Mike Christie <mchristi@...hat.com>
Subject: [PATCH 09/32] btrfs: prepare for bi_rw split
From: Mike Christie <mchristi@...hat.com>
This patch prepares btrfs's submit_bio use for the next
patches that split bi_rw into a operation and flags field.
Instead of passing in a bitmap with both the operation and
flags mixed in, the callers will now pass them in seperately.
This patch modifies the code related to the submit_bio calls
so the flags and operation are seperated. When this is done
for all code, one of the later patches in the series will
the actual submit_bio call, so the patches are bisectable.
Signed-off-by: Mike Christie <mchristi@...hat.com>
---
fs/btrfs/check-integrity.c | 6 +--
fs/btrfs/check-integrity.h | 2 +-
fs/btrfs/compression.c | 8 ++--
fs/btrfs/ctree.h | 3 +-
fs/btrfs/disk-io.c | 48 +++++++++++----------
fs/btrfs/disk-io.h | 2 +-
fs/btrfs/extent-tree.c | 2 +-
fs/btrfs/extent_io.c | 103 ++++++++++++++++++++++++---------------------
fs/btrfs/extent_io.h | 7 +--
fs/btrfs/inode.c | 65 ++++++++++++++--------------
fs/btrfs/scrub.c | 4 +-
fs/btrfs/volumes.c | 88 ++++++++++++++++++++------------------
fs/btrfs/volumes.h | 4 +-
13 files changed, 177 insertions(+), 165 deletions(-)
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index fd50b2f..515a92e 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -3058,10 +3058,10 @@ leave:
mutex_unlock(&btrfsic_mutex);
}
-void btrfsic_submit_bio(int rw, struct bio *bio)
+void btrfsic_submit_bio(int op, int op_flags, struct bio *bio)
{
- __btrfsic_submit_bio(rw, bio);
- submit_bio(rw, bio);
+ __btrfsic_submit_bio(op | op_flags, bio);
+ submit_bio(op | op_flags, bio);
}
int btrfsic_submit_bio_wait(int op, int op_flags, struct bio *bio)
diff --git a/fs/btrfs/check-integrity.h b/fs/btrfs/check-integrity.h
index 13b0d54..a8edc424 100644
--- a/fs/btrfs/check-integrity.h
+++ b/fs/btrfs/check-integrity.h
@@ -21,7 +21,7 @@
#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
int btrfsic_submit_bh(int rw, struct buffer_head *bh);
-void btrfsic_submit_bio(int rw, struct bio *bio);
+void btrfsic_submit_bio(int op, int op_flags, struct bio *bio);
int btrfsic_submit_bio_wait(int op, int op_flags, struct bio *bio);
#else
#define btrfsic_submit_bh submit_bh
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 57ee8ca..a7b245d 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -401,7 +401,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
BUG_ON(ret); /* -ENOMEM */
}
- ret = btrfs_map_bio(root, WRITE, bio, 0, 1);
+ ret = btrfs_map_bio(root, REQ_OP_WRITE, 0, bio, 0, 1);
BUG_ON(ret); /* -ENOMEM */
bio_put(bio);
@@ -431,7 +431,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
BUG_ON(ret); /* -ENOMEM */
}
- ret = btrfs_map_bio(root, WRITE, bio, 0, 1);
+ ret = btrfs_map_bio(root, REQ_OP_WRITE, 0, bio, 0, 1);
BUG_ON(ret); /* -ENOMEM */
bio_put(bio);
@@ -692,7 +692,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
sums += DIV_ROUND_UP(comp_bio->bi_iter.bi_size,
root->sectorsize);
- ret = btrfs_map_bio(root, READ, comp_bio,
+ ret = btrfs_map_bio(root, REQ_OP_READ, 0, comp_bio,
mirror_num, 0);
if (ret) {
bio->bi_error = ret;
@@ -722,7 +722,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
BUG_ON(ret); /* -ENOMEM */
}
- ret = btrfs_map_bio(root, READ, comp_bio, mirror_num, 0);
+ ret = btrfs_map_bio(root, REQ_OP_READ, 0, comp_bio, mirror_num, 0);
if (ret) {
bio->bi_error = ret;
bio_endio(comp_bio);
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 938efe3..e4489dd1 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3910,8 +3910,7 @@ int btrfs_create_subvol_root(struct btrfs_trans_handle *trans,
struct btrfs_root *parent_root,
u64 new_dirid);
int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset,
- size_t size, struct bio *bio,
- unsigned long bio_flags);
+ size_t size, struct bio *bio, unsigned long bio_flags);
int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
int btrfs_readpage(struct file *file, struct page *page);
void btrfs_evict_inode(struct inode *inode);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 1e60d00..6c17d5d 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -118,7 +118,8 @@ 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 op;
+ int op_flags;
int mirror_num;
unsigned long bio_flags;
/*
@@ -783,9 +784,9 @@ 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,
- async->mirror_num, async->bio_flags,
- async->bio_offset);
+ ret = async->submit_bio_start(async->inode, async->op, async->op_flags,
+ async->bio, async->mirror_num,
+ async->bio_flags, async->bio_offset);
if (ret)
async->error = ret;
}
@@ -813,8 +814,8 @@ 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->submit_bio_done(async->inode, async->op, async->op_flags,
+ async->bio, async->mirror_num, async->bio_flags,
async->bio_offset);
}
@@ -827,7 +828,7 @@ 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,
+ int op, int op_flags, struct bio *bio, int mirror_num,
unsigned long bio_flags,
u64 bio_offset,
extent_submit_bio_hook_t *submit_bio_start,
@@ -840,7 +841,8 @@ int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
return -ENOMEM;
async->inode = inode;
- async->rw = rw;
+ async->op = op;
+ async->op_flags = op_flags;
async->bio = bio;
async->mirror_num = mirror_num;
async->submit_bio_start = submit_bio_start;
@@ -856,7 +858,7 @@ int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
atomic_inc(&fs_info->nr_async_submits);
- if (rw & REQ_SYNC)
+ if (op_flags & REQ_SYNC)
btrfs_set_work_high_priority(&async->work);
btrfs_queue_work(fs_info->workers, &async->work);
@@ -886,7 +888,7 @@ static int btree_csum_one_bio(struct bio *bio)
return ret;
}
-static int __btree_submit_bio_start(struct inode *inode, int rw,
+static int __btree_submit_bio_start(struct inode *inode, int op, int op_flags,
struct bio *bio, int mirror_num,
unsigned long bio_flags,
u64 bio_offset)
@@ -898,9 +900,9 @@ 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,
- int mirror_num, unsigned long bio_flags,
- u64 bio_offset)
+static int __btree_submit_bio_done(struct inode *inode, int op, int op_flags,
+ struct bio *bio, int mirror_num,
+ unsigned long bio_flags, u64 bio_offset)
{
int ret;
@@ -908,7 +910,7 @@ 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, op, op_flags, bio, mirror_num, 1);
if (ret) {
bio->bi_error = ret;
bio_endio(bio);
@@ -927,14 +929,14 @@ 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,
- int mirror_num, unsigned long bio_flags,
- u64 bio_offset)
+static int btree_submit_bio_hook(struct inode *inode, int op, int op_flags,
+ struct bio *bio, int mirror_num,
+ unsigned long bio_flags, u64 bio_offset)
{
int async = check_async_write(inode, bio_flags);
int ret;
- if (!(rw & REQ_WRITE)) {
+ if (!(op == REQ_OP_WRITE)) {
/*
* called for a read, do the setup so that checksum validation
* can happen in the async kernel threads
@@ -943,13 +945,13 @@ 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,
+ ret = btrfs_map_bio(BTRFS_I(inode)->root, op, op_flags, 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,
+ ret = btrfs_map_bio(BTRFS_I(inode)->root, op, op_flags, bio,
mirror_num, 0);
} else {
/*
@@ -957,8 +959,8 @@ static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
* 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,
- bio_offset,
+ inode, op, op_flags, bio, mirror_num,
+ 0, bio_offset,
__btree_submit_bio_start,
__btree_submit_bio_done);
}
@@ -3392,7 +3394,7 @@ static int write_dev_flush(struct btrfs_device *device, int wait)
device->flush_bio = bio;
bio_get(bio);
- btrfsic_submit_bio(WRITE_FLUSH, bio);
+ btrfsic_submit_bio(REQ_OP_WRITE, WRITE_FLUSH, bio);
return 0;
}
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index bdfb479..caa47a3 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -121,7 +121,7 @@ void btrfs_csum_final(u32 crc, char *result);
int btrfs_bio_wq_end_io(struct btrfs_fs_info *info, struct bio *bio,
enum btrfs_wq_endio_type metadata);
int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
- int rw, struct bio *bio, int mirror_num,
+ int op, int op_flags, struct bio *bio, int mirror_num,
unsigned long bio_flags, u64 bio_offset,
extent_submit_bio_hook_t *submit_bio_start,
extent_submit_bio_hook_t *submit_bio_done);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 601d7d4..d28d4b2 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1964,7 +1964,7 @@ 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/extent_io.c b/fs/btrfs/extent_io.c
index 9a68a83..0dc9ec6 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2407,7 +2407,7 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset,
struct inode *inode = page->mapping->host;
struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree;
struct bio *bio;
- int read_mode;
+ int read_mode_flags = READ_SYNC;
int ret;
BUG_ON(failed_bio->bi_rw & REQ_WRITE);
@@ -2423,9 +2423,7 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset,
}
if (failed_bio->bi_vcnt > 1)
- read_mode = READ_SYNC | REQ_FAILFAST_DEV;
- else
- read_mode = READ_SYNC;
+ read_mode_flags |= REQ_FAILFAST_DEV;
phy_offset >>= inode->i_sb->s_blocksize_bits;
bio = btrfs_create_repair_bio(inode, failed_bio, failrec, page,
@@ -2438,10 +2436,10 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset,
}
pr_debug("Repair Read Error: submitting new read[%#x] to this_mirror=%d, in_validation=%d\n",
- read_mode, failrec->this_mirror, failrec->in_validation);
+ read_mode_flags, failrec->this_mirror, failrec->in_validation);
- ret = tree->ops->submit_bio_hook(inode, read_mode, bio,
- failrec->this_mirror,
+ ret = tree->ops->submit_bio_hook(inode, REQ_OP_READ, read_mode_flags,
+ bio, failrec->this_mirror,
failrec->bio_flags, 0);
if (ret) {
free_io_failure(inode, failrec);
@@ -2750,7 +2748,7 @@ struct bio *btrfs_io_bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs)
}
-static int __must_check submit_one_bio(int rw, struct bio *bio,
+static int __must_check submit_one_bio(int op, int op_flags, struct bio *bio,
int mirror_num, unsigned long bio_flags)
{
int ret = 0;
@@ -2766,18 +2764,19 @@ static int __must_check submit_one_bio(int rw, struct bio *bio,
bio_get(bio);
if (tree->ops && tree->ops->submit_bio_hook)
- ret = tree->ops->submit_bio_hook(page->mapping->host, rw, bio,
- mirror_num, bio_flags, start);
+ ret = tree->ops->submit_bio_hook(page->mapping->host, op,
+ op_flags, bio, mirror_num,
+ bio_flags, start);
else
- btrfsic_submit_bio(rw, bio);
+ btrfsic_submit_bio(op, op_flags, bio);
bio_put(bio);
return ret;
}
-static int merge_bio(int rw, struct extent_io_tree *tree, struct page *page,
- unsigned long offset, size_t size, struct bio *bio,
- unsigned long bio_flags)
+static int merge_bio(int rw, struct extent_io_tree *tree,
+ struct page *page, unsigned long offset, size_t size,
+ struct bio *bio, unsigned long bio_flags)
{
int ret = 0;
if (tree->ops && tree->ops->merge_bio_hook)
@@ -2788,7 +2787,7 @@ static int merge_bio(int rw, struct extent_io_tree *tree, struct page *page,
}
-static int submit_extent_page(int rw, struct extent_io_tree *tree,
+static int submit_extent_page(int op, int op_flags, struct extent_io_tree *tree,
struct writeback_control *wbc,
struct page *page, sector_t sector,
size_t size, unsigned long offset,
@@ -2816,9 +2815,10 @@ static int submit_extent_page(int rw, struct extent_io_tree *tree,
if (prev_bio_flags != bio_flags || !contig ||
force_bio_submit ||
- merge_bio(rw, tree, page, offset, page_size, bio, bio_flags) ||
+ merge_bio(op, tree, page, offset, page_size, bio,
+ bio_flags) ||
bio_add_page(bio, page, page_size, offset) < page_size) {
- ret = submit_one_bio(rw, bio, mirror_num,
+ ret = submit_one_bio(op, op_flags, bio, mirror_num,
prev_bio_flags);
if (ret < 0) {
*bio_ret = NULL;
@@ -2848,7 +2848,7 @@ static int submit_extent_page(int rw, struct extent_io_tree *tree,
if (bio_ret)
*bio_ret = bio;
else
- ret = submit_one_bio(rw, bio, mirror_num, bio_flags);
+ ret = submit_one_bio(op, op_flags, bio, mirror_num, bio_flags);
return ret;
}
@@ -2912,7 +2912,7 @@ static int __do_readpage(struct extent_io_tree *tree,
get_extent_t *get_extent,
struct extent_map **em_cached,
struct bio **bio, int mirror_num,
- unsigned long *bio_flags, int rw,
+ unsigned long *bio_flags, int op, int op_flags,
u64 *prev_em_start)
{
struct inode *inode = page->mapping->host;
@@ -3099,7 +3099,7 @@ static int __do_readpage(struct extent_io_tree *tree,
}
pnr -= page->index;
- ret = submit_extent_page(rw, tree, NULL, page,
+ ret = submit_extent_page(op, op_flags, tree, NULL, page,
sector, disk_io_size, pg_offset,
bdev, bio, pnr,
end_bio_extent_readpage, mirror_num,
@@ -3132,7 +3132,7 @@ static inline void __do_contiguous_readpages(struct extent_io_tree *tree,
get_extent_t *get_extent,
struct extent_map **em_cached,
struct bio **bio, int mirror_num,
- unsigned long *bio_flags, int rw,
+ unsigned long *bio_flags,
u64 *prev_em_start)
{
struct inode *inode;
@@ -3153,7 +3153,8 @@ static inline void __do_contiguous_readpages(struct extent_io_tree *tree,
for (index = 0; index < nr_pages; index++) {
__do_readpage(tree, pages[index], get_extent, em_cached, bio,
- mirror_num, bio_flags, rw, prev_em_start);
+ mirror_num, bio_flags, REQ_OP_READ, 0,
+ prev_em_start);
page_cache_release(pages[index]);
}
}
@@ -3163,7 +3164,7 @@ static void __extent_readpages(struct extent_io_tree *tree,
int nr_pages, get_extent_t *get_extent,
struct extent_map **em_cached,
struct bio **bio, int mirror_num,
- unsigned long *bio_flags, int rw,
+ unsigned long *bio_flags,
u64 *prev_em_start)
{
u64 start = 0;
@@ -3185,7 +3186,7 @@ static void __extent_readpages(struct extent_io_tree *tree,
index - first_index, start,
end, get_extent, em_cached,
bio, mirror_num, bio_flags,
- rw, prev_em_start);
+ prev_em_start);
start = page_start;
end = start + PAGE_CACHE_SIZE - 1;
first_index = index;
@@ -3196,7 +3197,7 @@ static void __extent_readpages(struct extent_io_tree *tree,
__do_contiguous_readpages(tree, &pages[first_index],
index - first_index, start,
end, get_extent, em_cached, bio,
- mirror_num, bio_flags, rw,
+ mirror_num, bio_flags,
prev_em_start);
}
@@ -3204,7 +3205,8 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
struct page *page,
get_extent_t *get_extent,
struct bio **bio, int mirror_num,
- unsigned long *bio_flags, int rw)
+ unsigned long *bio_flags, int op,
+ int op_flags)
{
struct inode *inode = page->mapping->host;
struct btrfs_ordered_extent *ordered;
@@ -3223,7 +3225,7 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
}
ret = __do_readpage(tree, page, get_extent, NULL, bio, mirror_num,
- bio_flags, rw, NULL);
+ bio_flags, op, op_flags, NULL);
return ret;
}
@@ -3235,9 +3237,10 @@ int extent_read_full_page(struct extent_io_tree *tree, struct page *page,
int ret;
ret = __extent_read_full_page(tree, page, get_extent, &bio, mirror_num,
- &bio_flags, READ);
+ &bio_flags, REQ_OP_READ, 0);
if (bio)
- ret = submit_one_bio(READ, bio, mirror_num, bio_flags);
+ ret = submit_one_bio(REQ_OP_READ, 0, bio, mirror_num,
+ bio_flags);
return ret;
}
@@ -3249,9 +3252,10 @@ int extent_read_full_page_nolock(struct extent_io_tree *tree, struct page *page,
int ret;
ret = __do_readpage(tree, page, get_extent, NULL, &bio, mirror_num,
- &bio_flags, READ, NULL);
+ &bio_flags, REQ_OP_READ, 0, NULL);
if (bio)
- ret = submit_one_bio(READ, bio, mirror_num, bio_flags);
+ ret = submit_one_bio(REQ_OP_READ, 0, bio, mirror_num,
+ bio_flags);
return ret;
}
@@ -3498,9 +3502,10 @@ static noinline_for_stack int __extent_writepage_io(struct inode *inode,
page->index, cur, end);
}
- ret = submit_extent_page(write_flags, tree, wbc, page,
- sector, iosize, pg_offset,
- bdev, &epd->bio, max_nr,
+ ret = submit_extent_page(REQ_OP_WRITE, write_flags,
+ tree, wbc, page, sector,
+ iosize, pg_offset, bdev,
+ &epd->bio, max_nr,
end_bio_extent_writepage,
0, 0, 0, false);
if (ret)
@@ -3538,13 +3543,11 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
size_t pg_offset = 0;
loff_t i_size = i_size_read(inode);
unsigned long end_index = i_size >> PAGE_CACHE_SHIFT;
- int write_flags;
+ int write_flags = 0;
unsigned long nr_written = 0;
if (wbc->sync_mode == WB_SYNC_ALL)
write_flags = WRITE_SYNC;
- else
- write_flags = WRITE;
trace___extent_writepage(page, inode, wbc);
@@ -3788,7 +3791,7 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
u64 offset = eb->start;
unsigned long i, num_pages;
unsigned long bio_flags = 0;
- int rw = (epd->sync_io ? WRITE_SYNC : WRITE) | REQ_META;
+ int op_flags = (epd->sync_io ? WRITE_SYNC : 0) | REQ_META;
int ret = 0;
clear_bit(EXTENT_BUFFER_WRITE_ERR, &eb->bflags);
@@ -3802,9 +3805,10 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
clear_page_dirty_for_io(p);
set_page_writeback(p);
- ret = submit_extent_page(rw, tree, wbc, p, offset >> 9,
- PAGE_CACHE_SIZE, 0, bdev, &epd->bio,
- -1, end_bio_extent_buffer_writepage,
+ ret = submit_extent_page(REQ_OP_WRITE, op_flags, tree, wbc, p,
+ offset >> 9, PAGE_CACHE_SIZE, 0, bdev,
+ &epd->bio, -1,
+ end_bio_extent_buffer_writepage,
0, epd->bio_flags, bio_flags, false);
epd->bio_flags = bio_flags;
if (ret) {
@@ -4093,13 +4097,14 @@ retry:
static void flush_epd_write_bio(struct extent_page_data *epd)
{
if (epd->bio) {
- int rw = WRITE;
+ int op_flags = 0;
int ret;
if (epd->sync_io)
- rw = WRITE_SYNC;
+ op_flags = WRITE_SYNC;
- ret = submit_one_bio(rw, epd->bio, 0, epd->bio_flags);
+ ret = submit_one_bio(REQ_OP_WRITE, op_flags, epd->bio, 0,
+ epd->bio_flags);
BUG_ON(ret < 0); /* -ENOMEM */
epd->bio = NULL;
}
@@ -4226,19 +4231,19 @@ int extent_readpages(struct extent_io_tree *tree,
if (nr < ARRAY_SIZE(pagepool))
continue;
__extent_readpages(tree, pagepool, nr, get_extent, &em_cached,
- &bio, 0, &bio_flags, READ, &prev_em_start);
+ &bio, 0, &bio_flags, &prev_em_start);
nr = 0;
}
if (nr)
__extent_readpages(tree, pagepool, nr, get_extent, &em_cached,
- &bio, 0, &bio_flags, READ, &prev_em_start);
+ &bio, 0, &bio_flags, &prev_em_start);
if (em_cached)
free_extent_map(em_cached);
BUG_ON(!list_empty(pages));
if (bio)
- return submit_one_bio(READ, bio, 0, bio_flags);
+ return submit_one_bio(REQ_OP_READ, 0, bio, 0, bio_flags);
return 0;
}
@@ -5254,7 +5259,7 @@ int read_extent_buffer_pages(struct extent_io_tree *tree,
err = __extent_read_full_page(tree, page,
get_extent, &bio,
mirror_num, &bio_flags,
- READ | REQ_META);
+ REQ_OP_READ, REQ_META);
if (err)
ret = err;
} else {
@@ -5263,7 +5268,7 @@ int read_extent_buffer_pages(struct extent_io_tree *tree,
}
if (bio) {
- err = submit_one_bio(READ | REQ_META, bio, mirror_num,
+ err = submit_one_bio(REQ_OP_READ, REQ_META, bio, mirror_num,
bio_flags);
if (err)
return err;
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index c668f36..28d8929 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -61,9 +61,10 @@ struct extent_state;
struct btrfs_root;
struct btrfs_io_bio;
-typedef int (extent_submit_bio_hook_t)(struct inode *inode, int rw,
- struct bio *bio, int mirror_num,
- unsigned long bio_flags, u64 bio_offset);
+typedef int (extent_submit_bio_hook_t)(struct inode *inode, int op,
+ int op_flags, struct bio *bio,
+ int mirror_num, unsigned long bio_flags,
+ u64 bio_offset);
struct extent_io_ops {
int (*fill_delalloc)(struct inode *inode, struct page *locked_page,
u64 start, u64 end, int *page_started,
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 0ad8bab..dd0b769 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1785,8 +1785,7 @@ static void btrfs_clear_bit_hook(struct inode *inode,
* we don't create bios that span stripes or chunks
*/
int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset,
- size_t size, struct bio *bio,
- unsigned long bio_flags)
+ size_t size, struct bio *bio, unsigned long bio_flags)
{
struct btrfs_root *root = BTRFS_I(page->mapping->host)->root;
u64 logical = (u64)bio->bi_iter.bi_sector << 9;
@@ -1816,7 +1815,7 @@ int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset,
* At IO completion time the cums attached on the ordered extent record
* are inserted into the btree
*/
-static int __btrfs_submit_bio_start(struct inode *inode, int rw,
+static int __btrfs_submit_bio_start(struct inode *inode, int op, int op_flags,
struct bio *bio, int mirror_num,
unsigned long bio_flags,
u64 bio_offset)
@@ -1837,14 +1836,14 @@ static int __btrfs_submit_bio_start(struct inode *inode, int rw,
* At IO completion time the cums attached on the ordered extent record
* are inserted into the btree
*/
-static int __btrfs_submit_bio_done(struct inode *inode, int rw, struct bio *bio,
- int mirror_num, unsigned long bio_flags,
- u64 bio_offset)
+static int __btrfs_submit_bio_done(struct inode *inode, int op, int op_flags,
+ struct bio *bio, int mirror_num,
+ unsigned long bio_flags, u64 bio_offset)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret;
- ret = btrfs_map_bio(root, rw, bio, mirror_num, 1);
+ ret = btrfs_map_bio(root, op, op_flags, bio, mirror_num, 1);
if (ret) {
bio->bi_error = ret;
bio_endio(bio);
@@ -1856,9 +1855,9 @@ static int __btrfs_submit_bio_done(struct inode *inode, int rw, struct bio *bio,
* extent_io.c submission hook. This does the right thing for csum calculation
* on write, or reading the csums from the tree before a read
*/
-static int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
- int mirror_num, unsigned long bio_flags,
- u64 bio_offset)
+static int btrfs_submit_bio_hook(struct inode *inode, int op, int op_flags,
+ struct bio *bio, int mirror_num,
+ unsigned long bio_flags, u64 bio_offset)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret = 0;
@@ -1871,7 +1870,7 @@ static int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
if (btrfs_is_free_space_inode(inode))
metadata = 2;
- if (!(rw & REQ_WRITE)) {
+ if (!(op == REQ_OP_WRITE)) {
ret = btrfs_bio_wq_end_io(root->fs_info, bio, metadata);
if (ret)
goto out;
@@ -1893,7 +1892,7 @@ static int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
goto mapit;
/* we're doing a write, do the async checksumming */
ret = btrfs_wq_submit_bio(BTRFS_I(inode)->root->fs_info,
- inode, rw, bio, mirror_num,
+ inode, op, op_flags, bio, mirror_num,
bio_flags, bio_offset,
__btrfs_submit_bio_start,
__btrfs_submit_bio_done);
@@ -1905,7 +1904,7 @@ static int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
}
mapit:
- ret = btrfs_map_bio(root, rw, bio, mirror_num, 0);
+ ret = btrfs_map_bio(root, op, op_flags, bio, mirror_num, 0);
out:
if (ret < 0) {
@@ -7613,13 +7612,11 @@ unlock_err:
}
static inline int submit_dio_repair_bio(struct inode *inode, struct bio *bio,
- int rw, int mirror_num)
+ int op_flags, int mirror_num)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret;
- BUG_ON(rw & REQ_WRITE);
-
bio_get(bio);
ret = btrfs_bio_wq_end_io(root->fs_info, bio,
@@ -7627,7 +7624,7 @@ static inline int submit_dio_repair_bio(struct inode *inode, struct bio *bio,
if (ret)
goto err;
- ret = btrfs_map_bio(root, rw, bio, mirror_num, 0);
+ ret = btrfs_map_bio(root, REQ_OP_READ, op_flags, bio, mirror_num, 0);
err:
bio_put(bio);
return ret;
@@ -7939,9 +7936,11 @@ out_test:
bio_put(bio);
}
-static int __btrfs_submit_bio_start_direct_io(struct inode *inode, int rw,
- struct bio *bio, int mirror_num,
- unsigned long bio_flags, u64 offset)
+static int __btrfs_submit_bio_start_direct_io(struct inode *inode, int op,
+ int op_flags, struct bio *bio,
+ int mirror_num,
+ unsigned long bio_flags,
+ u64 offset)
{
int ret;
struct btrfs_root *root = BTRFS_I(inode)->root;
@@ -8032,11 +8031,11 @@ static inline int btrfs_lookup_and_bind_dio_csum(struct btrfs_root *root,
}
static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
- int rw, u64 file_offset, int skip_sum,
- int async_submit)
+ int op, int op_flags, u64 file_offset,
+ int skip_sum, int async_submit)
{
struct btrfs_dio_private *dip = bio->bi_private;
- int write = rw & REQ_WRITE;
+ bool write = op == REQ_OP_WRITE ? true : false;
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret;
@@ -8057,7 +8056,7 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
if (write && async_submit) {
ret = btrfs_wq_submit_bio(root->fs_info,
- inode, rw, bio, 0, 0,
+ inode, op, op_flags, bio, 0, 0,
file_offset,
__btrfs_submit_bio_start_direct_io,
__btrfs_submit_bio_done);
@@ -8077,14 +8076,14 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
goto err;
}
map:
- ret = btrfs_map_bio(root, rw, bio, 0, async_submit);
+ ret = btrfs_map_bio(root, op, op_flags, bio, 0, async_submit);
err:
bio_put(bio);
return ret;
}
-static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
- int skip_sum)
+static int btrfs_submit_direct_hook(int op, int op_flags,
+ struct btrfs_dio_private *dip, int skip_sum)
{
struct inode *inode = dip->inode;
struct btrfs_root *root = BTRFS_I(inode)->root;
@@ -8100,7 +8099,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
int async_submit = 0;
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, op, start_sector << 9,
&map_length, NULL, 0);
if (ret)
return -EIO;
@@ -8137,7 +8136,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
* before we're done setting it up
*/
atomic_inc(&dip->pending_bios);
- ret = __btrfs_submit_dio_bio(bio, inode, rw,
+ ret = __btrfs_submit_dio_bio(bio, inode, op, op_flags,
file_offset, skip_sum,
async_submit);
if (ret) {
@@ -8161,7 +8160,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
btrfs_io_bio(bio)->logical = file_offset;
map_length = orig_bio->bi_iter.bi_size;
- ret = btrfs_map_block(root->fs_info, rw,
+ ret = btrfs_map_block(root->fs_info, op,
start_sector << 9,
&map_length, NULL, 0);
if (ret) {
@@ -8176,8 +8175,8 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
}
submit:
- ret = __btrfs_submit_dio_bio(bio, inode, rw, file_offset, skip_sum,
- async_submit);
+ ret = __btrfs_submit_dio_bio(bio, inode, op, op_flags, file_offset,
+ skip_sum, async_submit);
if (!ret)
return 0;
@@ -8238,7 +8237,7 @@ static void btrfs_submit_direct(int op, int op_flags, struct bio *dio_bio,
dip->subio_endio = btrfs_subio_endio_read;
}
- ret = btrfs_submit_direct_hook(op | op_flags, dip, skip_sum);
+ ret = btrfs_submit_direct_hook(op, op_flags, dip, skip_sum);
if (!ret)
return;
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 9cb6f9a..8b72207 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -1784,7 +1784,7 @@ static void scrub_wr_submit(struct scrub_ctx *sctx)
* orders the requests before sending them to the driver which
* doubled the write performance on spinning disks when measured
* with Linux 3.5 */
- btrfsic_submit_bio(WRITE, sbio->bio);
+ btrfsic_submit_bio(REQ_OP_WRITE, 0, sbio->bio);
}
static void scrub_wr_bio_end_io(struct bio *bio)
@@ -2084,7 +2084,7 @@ static void scrub_submit(struct scrub_ctx *sctx)
sbio = sctx->bios[sctx->curr];
sctx->curr = -1;
scrub_pending_bio_inc(sctx);
- btrfsic_submit_bio(READ, sbio->bio);
+ btrfsic_submit_bio(REQ_OP_READ, 0, sbio->bio);
}
static int scrub_add_page_to_rd_bio(struct scrub_ctx *sctx,
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 6fc73586..3dfac71 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -367,7 +367,7 @@ loop_lock:
sync_pending = 0;
}
- btrfsic_submit_bio(cur->bi_rw, cur);
+ btrfsic_submit_bio(cur->bi_rw, 0, cur);
num_run++;
batch_run++;
@@ -5091,7 +5091,7 @@ 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)
@@ -5169,7 +5169,7 @@ 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;
@@ -5182,7 +5182,7 @@ 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 {
@@ -5205,8 +5205,8 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
btrfs_dev_replace_unlock(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
@@ -5295,15 +5295,17 @@ 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;
@@ -5316,7 +5318,8 @@ 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 || op == REQ_OP_DISCARD ||
+ op == REQ_GET_READ_MIRRORS) {
num_stripes = map->num_stripes;
} else if (mirror_num) {
stripe_index = mirror_num - 1;
@@ -5330,9 +5333,9 @@ 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);
@@ -5350,7 +5353,7 @@ 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,
@@ -5378,8 +5381,8 @@ 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 {
@@ -5396,9 +5399,9 @@ 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;
}
@@ -5413,7 +5416,8 @@ 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;
@@ -5438,7 +5442,7 @@ 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;
@@ -5518,14 +5522,15 @@ 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;
@@ -5560,7 +5565,7 @@ 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;
@@ -5637,8 +5642,8 @@ int btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
u64 logical, u64 *length,
struct btrfs_bio **bbio_ret, int mirror_num)
{
- return __btrfs_map_block(fs_info, rw, logical, length, bbio_ret,
- mirror_num, 0);
+ return __btrfs_map_block(fs_info, rw, logical, length,
+ bbio_ret, mirror_num, 0);
}
/* For Scrub/replace */
@@ -5815,7 +5820,7 @@ static void btrfs_end_bio(struct bio *bio)
*/
static noinline void btrfs_schedule_bio(struct btrfs_root *root,
struct btrfs_device *device,
- int rw, struct bio *bio)
+ int op, int op_flags, struct bio *bio)
{
int should_queue = 1;
struct btrfs_pending_bios *pending_bios;
@@ -5826,9 +5831,9 @@ static noinline void btrfs_schedule_bio(struct btrfs_root *root,
}
/* don't bother with additional async steps for reads, right now */
- if (!(rw & REQ_WRITE)) {
+ if (!(op == REQ_OP_WRITE)) {
bio_get(bio);
- btrfsic_submit_bio(rw, bio);
+ btrfsic_submit_bio(op, op_flags, bio);
bio_put(bio);
return;
}
@@ -5842,7 +5847,7 @@ static noinline void btrfs_schedule_bio(struct btrfs_root *root,
atomic_inc(&root->fs_info->nr_async_bios);
WARN_ON(bio->bi_next);
bio->bi_next = NULL;
- bio->bi_rw |= rw;
+ bio->bi_rw |= op | op_flags;
spin_lock(&device->io_lock);
if (bio->bi_rw & REQ_SYNC)
@@ -5868,7 +5873,7 @@ static noinline void btrfs_schedule_bio(struct btrfs_root *root,
static void submit_stripe_bio(struct btrfs_root *root, struct btrfs_bio *bbio,
struct bio *bio, u64 physical, int dev_nr,
- int rw, int async)
+ int op, int op_flags, int async)
{
struct btrfs_device *dev = bbio->stripes[dev_nr].dev;
@@ -5882,8 +5887,8 @@ static void submit_stripe_bio(struct btrfs_root *root, struct btrfs_bio *bbio,
rcu_read_lock();
name = rcu_dereference(dev->name);
- pr_debug("btrfs_map_bio: rw %d, sector=%llu, dev=%lu "
- "(%s id %llu), size=%u\n", rw,
+ pr_debug("btrfs_map_bio: rw %d,%d, sector=%llu, dev=%lu "
+ "(%s id %llu), size=%u\n", op, op_flags,
(u64)bio->bi_iter.bi_sector, (u_long)dev->bdev->bd_dev,
name->str, dev->devid, bio->bi_iter.bi_size);
rcu_read_unlock();
@@ -5894,9 +5899,9 @@ static void submit_stripe_bio(struct btrfs_root *root, struct btrfs_bio *bbio,
btrfs_bio_counter_inc_noblocked(root->fs_info);
if (async)
- btrfs_schedule_bio(root, dev, rw, bio);
+ btrfs_schedule_bio(root, dev, op, op_flags, bio);
else
- btrfsic_submit_bio(rw, bio);
+ btrfsic_submit_bio(op, op_flags, bio);
}
static void bbio_error(struct btrfs_bio *bbio, struct bio *bio, u64 logical)
@@ -5913,8 +5918,8 @@ static void bbio_error(struct btrfs_bio *bbio, struct bio *bio, u64 logical)
}
}
-int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
- int mirror_num, int async_submit)
+int btrfs_map_bio(struct btrfs_root *root, int op, int op_flags,
+ struct bio *bio, int mirror_num, int async_submit)
{
struct btrfs_device *dev;
struct bio *first_bio = bio;
@@ -5930,8 +5935,8 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
map_length = length;
btrfs_bio_counter_inc_blocked(root->fs_info);
- ret = __btrfs_map_block(root->fs_info, rw, logical, &map_length, &bbio,
- mirror_num, 1);
+ ret = __btrfs_map_block(root->fs_info, op, logical, &map_length, &bbio,
+ mirror_num, 1);
if (ret) {
btrfs_bio_counter_dec(root->fs_info);
return ret;
@@ -5947,7 +5952,7 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
if (bbio->raid_map) {
/* In this case, map_length has been set to the length of
a single stripe; not the whole write */
- if (rw & WRITE) {
+ if (op == REQ_OP_WRITE) {
ret = raid56_parity_write(root, bio, bbio, map_length);
} else {
ret = raid56_parity_recover(root, bio, bbio, map_length,
@@ -5966,7 +5971,8 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
for (dev_nr = 0; dev_nr < total_devs; dev_nr++) {
dev = bbio->stripes[dev_nr].dev;
- if (!dev || !dev->bdev || (rw & WRITE && !dev->writeable)) {
+ if (!dev || !dev->bdev ||
+ (op == REQ_OP_WRITE && !dev->writeable)) {
bbio_error(bbio, first_bio, logical);
continue;
}
@@ -5978,8 +5984,8 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
bio = first_bio;
submit_stripe_bio(root, bbio, bio,
- bbio->stripes[dev_nr].physical, dev_nr, rw,
- async_submit);
+ bbio->stripes[dev_nr].physical, dev_nr, op,
+ op_flags, async_submit);
}
btrfs_bio_counter_dec(root->fs_info);
return 0;
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 595279a..22cd8c3 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -426,8 +426,8 @@ int btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
struct btrfs_root *extent_root, u64 type);
void btrfs_mapping_init(struct btrfs_mapping_tree *tree);
void btrfs_mapping_tree_free(struct btrfs_mapping_tree *tree);
-int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
- int mirror_num, int async_submit);
+int btrfs_map_bio(struct btrfs_root *root, int op, int op_flags,
+ struct bio *bio, int mirror_num, int async_submit);
int btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
fmode_t flags, void *holder);
int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
--
1.8.3.1
--
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