From: Christoph Hellwig <hch@lst.de>
To: Chris Mason <clm@fb.com>, Josef Bacik <josef@toxicpanda.com>,
David Sterba <dsterba@suse.com>
Cc: linux-btrfs@vger.kernel.org
Subject: [PATCH 3/6] btrfs: pass a btrfs_bio to btrfs_repair_one_sector
Date: Thu, 7 Jul 2022 07:33:28 +0200 [thread overview]
Message-ID: <20220707053331.211259-4-hch@lst.de> (raw)
In-Reply-To: <20220707053331.211259-1-hch@lst.de>
Pass the btrfs_bio instead of the plain bio to btrfs_repair_one_sector,
an remove the start and failed_mirror arguments in favor of deriving
them from the btrfs_bio. For this to work ensure that the file_offset
field is also initialized for buffered I/O.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/btrfs/extent_io.c | 47 ++++++++++++++++++++++++--------------------
fs/btrfs/extent_io.h | 8 ++++----
fs/btrfs/inode.c | 5 ++---
3 files changed, 32 insertions(+), 28 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 3778d58092dea..ec7bdb3fa0921 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -182,6 +182,7 @@ static int add_extent_changeset(struct extent_state *state, u32 bits,
static void submit_one_bio(struct btrfs_bio_ctrl *bio_ctrl)
{
struct bio *bio;
+ struct bio_vec *bv;
struct inode *inode;
int mirror_num;
@@ -189,12 +190,15 @@ static void submit_one_bio(struct btrfs_bio_ctrl *bio_ctrl)
return;
bio = bio_ctrl->bio;
- inode = bio_first_page_all(bio)->mapping->host;
+ bv = bio_first_bvec_all(bio);
+ inode = bv->bv_page->mapping->host;
mirror_num = bio_ctrl->mirror_num;
/* Caller should ensure the bio has at least some range added */
ASSERT(bio->bi_iter.bi_size);
+ btrfs_bio(bio)->file_offset = page_offset(bv->bv_page) + bv->bv_offset;
+
if (!is_data_inode(inode))
btrfs_submit_metadata_bio(inode, bio, mirror_num);
else if (btrfs_op(bio) == BTRFS_MAP_WRITE)
@@ -2533,10 +2537,11 @@ void btrfs_free_io_failure_record(struct btrfs_inode *inode, u64 start, u64 end)
}
static struct io_failure_record *btrfs_get_io_failure_record(struct inode *inode,
- u64 start,
- int failed_mirror)
+ struct btrfs_bio *bbio,
+ unsigned int bio_offset)
{
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ u64 start = bbio->file_offset + bio_offset;
struct io_failure_record *failrec;
struct extent_map *em;
struct extent_io_tree *failure_tree = &BTRFS_I(inode)->io_failure_tree;
@@ -2556,7 +2561,7 @@ static struct io_failure_record *btrfs_get_io_failure_record(struct inode *inode
* (e.g. with a list for failed_mirror) to make
* clean_io_failure() clean all those errors at once.
*/
- ASSERT(failrec->this_mirror == failed_mirror);
+ ASSERT(failrec->this_mirror == bbio->mirror_num);
ASSERT(failrec->len == fs_info->sectorsize);
return failrec;
}
@@ -2567,7 +2572,7 @@ static struct io_failure_record *btrfs_get_io_failure_record(struct inode *inode
failrec->start = start;
failrec->len = sectorsize;
- failrec->failed_mirror = failrec->this_mirror = failed_mirror;
+ failrec->failed_mirror = failrec->this_mirror = bbio->mirror_num;
failrec->compress_type = BTRFS_COMPRESS_NONE;
read_lock(&em_tree->lock);
@@ -2632,17 +2637,17 @@ static struct io_failure_record *btrfs_get_io_failure_record(struct inode *inode
return failrec;
}
-int btrfs_repair_one_sector(struct inode *inode,
- struct bio *failed_bio, u32 bio_offset,
- struct page *page, unsigned int pgoff,
- u64 start, int failed_mirror,
+int btrfs_repair_one_sector(struct inode *inode, struct btrfs_bio *failed_bbio,
+ u32 bio_offset, struct page *page,
+ unsigned int pgoff,
submit_bio_hook_t *submit_bio_hook)
{
+ u64 start = failed_bbio->file_offset + bio_offset;
struct io_failure_record *failrec;
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree;
struct extent_io_tree *failure_tree = &BTRFS_I(inode)->io_failure_tree;
- struct btrfs_bio *failed_bbio = btrfs_bio(failed_bio);
+ struct bio *failed_bio = &failed_bbio->bio;
const int icsum = bio_offset >> fs_info->sectorsize_bits;
struct bio *repair_bio;
struct btrfs_bio *repair_bbio;
@@ -2652,7 +2657,7 @@ int btrfs_repair_one_sector(struct inode *inode,
BUG_ON(bio_op(failed_bio) == REQ_OP_WRITE);
- failrec = btrfs_get_io_failure_record(inode, start, failed_mirror);
+ failrec = btrfs_get_io_failure_record(inode, failed_bbio, bio_offset);
if (IS_ERR(failrec))
return PTR_ERR(failrec);
@@ -2750,9 +2755,10 @@ static void end_sector_io(struct page *page, u64 offset, bool uptodate)
offset + sectorsize - 1, &cached);
}
-static void submit_data_read_repair(struct inode *inode, struct bio *failed_bio,
+static void submit_data_read_repair(struct inode *inode,
+ struct btrfs_bio *failed_bbio,
u32 bio_offset, const struct bio_vec *bvec,
- int failed_mirror, unsigned int error_bitmap)
+ unsigned int error_bitmap)
{
const unsigned int pgoff = bvec->bv_offset;
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
@@ -2763,7 +2769,7 @@ static void submit_data_read_repair(struct inode *inode, struct bio *failed_bio,
const int nr_bits = (end + 1 - start) >> fs_info->sectorsize_bits;
int i;
- BUG_ON(bio_op(failed_bio) == REQ_OP_WRITE);
+ BUG_ON(bio_op(&failed_bbio->bio) == REQ_OP_WRITE);
/* This repair is only for data */
ASSERT(is_data_inode(inode));
@@ -2775,7 +2781,7 @@ static void submit_data_read_repair(struct inode *inode, struct bio *failed_bio,
* We only get called on buffered IO, thus page must be mapped and bio
* must not be cloned.
*/
- ASSERT(page->mapping && !bio_flagged(failed_bio, BIO_CLONED));
+ ASSERT(page->mapping && !bio_flagged(&failed_bbio->bio, BIO_CLONED));
/* Iterate through all the sectors in the range */
for (i = 0; i < nr_bits; i++) {
@@ -2792,10 +2798,9 @@ static void submit_data_read_repair(struct inode *inode, struct bio *failed_bio,
goto next;
}
- ret = btrfs_repair_one_sector(inode, failed_bio,
- bio_offset + offset,
- page, pgoff + offset, start + offset,
- failed_mirror, btrfs_submit_data_read_bio);
+ ret = btrfs_repair_one_sector(inode, failed_bbio,
+ bio_offset + offset, page, pgoff + offset,
+ btrfs_submit_data_read_bio);
if (!ret) {
/*
* We have submitted the read repair, the page release
@@ -3127,8 +3132,8 @@ static void end_bio_extent_readpage(struct bio *bio)
* submit_data_read_repair() will handle all the good
* and bad sectors, we just continue to the next bvec.
*/
- submit_data_read_repair(inode, bio, bio_offset, bvec,
- mirror, error_bitmap);
+ submit_data_read_repair(inode, bbio, bio_offset, bvec,
+ error_bitmap);
} else {
/* Update page status and unlock */
end_page_read(page, uptodate, start, len);
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 280af70c04953..a78051c7627c4 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -57,6 +57,7 @@ enum {
#define BITMAP_LAST_BYTE_MASK(nbits) \
(BYTE_MASK >> (-(nbits) & (BITS_PER_BYTE - 1)))
+struct btrfs_bio;
struct btrfs_root;
struct btrfs_inode;
struct btrfs_io_bio;
@@ -266,10 +267,9 @@ struct io_failure_record {
int num_copies;
};
-int btrfs_repair_one_sector(struct inode *inode,
- struct bio *failed_bio, u32 bio_offset,
- struct page *page, unsigned int pgoff,
- u64 start, int failed_mirror,
+int btrfs_repair_one_sector(struct inode *inode, struct btrfs_bio *failed_bbio,
+ u32 bio_offset, struct page *page,
+ unsigned int pgoff,
submit_bio_hook_t *submit_bio_hook);
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 784c1ad4a9634..a627b2af9e243 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7953,9 +7953,8 @@ static blk_status_t btrfs_check_read_dio_bio(struct btrfs_dio_private *dip,
} else {
int ret;
- ret = btrfs_repair_one_sector(inode, &bbio->bio, offset,
- bv.bv_page, bv.bv_offset, start,
- bbio->mirror_num,
+ ret = btrfs_repair_one_sector(inode, bbio, offset,
+ bv.bv_page, bv.bv_offset,
submit_dio_repair_bio);
if (ret)
err = errno_to_blk_status(ret);
--
2.30.2
next prev parent reply other threads:[~2022-07-07 5:33 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-07 5:33 fix read repair on compressed extents v3 Christoph Hellwig
2022-07-07 5:33 ` [PATCH 1/6] btrfs: repair all known bad mirrors Christoph Hellwig
2022-07-07 5:33 ` [PATCH 2/6] btrfs: simplify the pending I/O counting in struct compressed_bio Christoph Hellwig
2022-07-07 5:33 ` Christoph Hellwig [this message]
2022-08-12 11:21 ` [PATCH 3/6] btrfs: pass a btrfs_bio to btrfs_repair_one_sector Qu Wenruo
2022-08-13 5:33 ` Qu Wenruo
2022-07-07 5:33 ` [PATCH 4/6] btrfs: remove the start argument to check_data_csum Christoph Hellwig
2022-07-19 18:21 ` David Sterba
2022-07-07 5:33 ` [PATCH 5/6] btrfs: fix repair of compressed extents Christoph Hellwig
2022-07-07 5:33 ` [PATCH 6/6] btrfs: don't call btrfs_page_set_checked in finish_compressed_bio_read Christoph Hellwig
2022-07-07 13:08 ` Nikolay Borisov
2022-07-08 9:37 ` fix read repair on compressed extents v3 Nikolay Borisov
2022-07-19 18:19 ` David Sterba
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