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-rw-r--r--fs/btrfs/compression.c8
-rw-r--r--fs/btrfs/extent_io.c150
2 files changed, 81 insertions, 77 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 5422a00214b0..193168214eeb 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -264,7 +264,7 @@ void btrfs_free_compr_page(struct page *page)
put_page(page);
}
-static void end_compressed_bio_read(struct btrfs_bio *bbio)
+static void end_bbio_comprssed_read(struct btrfs_bio *bbio)
{
struct compressed_bio *cb = to_compressed_bio(bbio);
blk_status_t status = bbio->bio.bi_status;
@@ -337,7 +337,7 @@ static void btrfs_finish_compressed_write_work(struct work_struct *work)
* This also calls the writeback end hooks for the file pages so that metadata
* and checksums can be updated in the file.
*/
-static void end_compressed_bio_write(struct btrfs_bio *bbio)
+static void end_bbio_comprssed_write(struct btrfs_bio *bbio)
{
struct compressed_bio *cb = to_compressed_bio(bbio);
struct btrfs_fs_info *fs_info = bbio->inode->root->fs_info;
@@ -384,7 +384,7 @@ void btrfs_submit_compressed_write(struct btrfs_ordered_extent *ordered,
cb = alloc_compressed_bio(inode, ordered->file_offset,
REQ_OP_WRITE | write_flags,
- end_compressed_bio_write);
+ end_bbio_comprssed_write);
cb->start = ordered->file_offset;
cb->len = ordered->num_bytes;
cb->compressed_pages = compressed_pages;
@@ -589,7 +589,7 @@ void btrfs_submit_compressed_read(struct btrfs_bio *bbio)
compressed_len = em->block_len;
cb = alloc_compressed_bio(inode, file_offset, REQ_OP_READ,
- end_compressed_bio_read);
+ end_bbio_comprssed_read);
cb->start = em->orig_start;
em_len = em->len;
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 4c8e14ce21a8..423861e5e8f5 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -451,44 +451,48 @@ static void end_page_read(struct page *page, bool uptodate, u64 start, u32 len)
}
/*
- * after a writepage IO is done, we need to:
- * clear the uptodate bits on error
- * clear the writeback bits in the extent tree for this IO
- * end_page_writeback if the page has no more pending IO
+ * After a write IO is done, we need to:
+ *
+ * - clear the uptodate bits on error
+ * - clear the writeback bits in the extent tree for the range
+ * - filio_end_writeback() if there is no more pending io for the folio
*
* Scheduling is not allowed, so the extent state tree is expected
* to have one and only one object corresponding to this IO.
*/
-static void end_bio_extent_writepage(struct btrfs_bio *bbio)
+static void end_bbio_data_write(struct btrfs_bio *bbio)
{
struct bio *bio = &bbio->bio;
int error = blk_status_to_errno(bio->bi_status);
- struct bio_vec *bvec;
- struct bvec_iter_all iter_all;
+ struct folio_iter fi;
ASSERT(!bio_flagged(bio, BIO_CLONED));
- bio_for_each_segment_all(bvec, bio, iter_all) {
- struct page *page = bvec->bv_page;
- struct inode *inode = page->mapping->host;
+ bio_for_each_folio_all(fi, bio) {
+ struct folio *folio = fi.folio;
+ struct inode *inode = folio->mapping->host;
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
const u32 sectorsize = fs_info->sectorsize;
- u64 start = page_offset(page) + bvec->bv_offset;
- u32 len = bvec->bv_len;
+ u64 start = folio_pos(folio) + fi.offset;
+ u32 len = fi.length;
+
+ /* Only order 0 (single page) folios are allowed for data. */
+ ASSERT(folio_order(folio) == 0);
/* Our read/write should always be sector aligned. */
- if (!IS_ALIGNED(bvec->bv_offset, sectorsize))
+ if (!IS_ALIGNED(fi.offset, sectorsize))
btrfs_err(fs_info,
- "partial page write in btrfs with offset %u and length %u",
- bvec->bv_offset, bvec->bv_len);
- else if (!IS_ALIGNED(bvec->bv_len, sectorsize))
+ "partial page write in btrfs with offset %zu and length %zu",
+ fi.offset, fi.length);
+ else if (!IS_ALIGNED(fi.length, sectorsize))
btrfs_info(fs_info,
- "incomplete page write with offset %u and length %u",
- bvec->bv_offset, bvec->bv_len);
+ "incomplete page write with offset %zu and length %zu",
+ fi.offset, fi.length);
- btrfs_finish_ordered_extent(bbio->ordered, page, start, len, !error);
+ btrfs_finish_ordered_extent(bbio->ordered,
+ folio_page(folio, 0), start, len, !error);
if (error)
- mapping_set_error(page->mapping, error);
- btrfs_folio_clear_writeback(fs_info, page_folio(page), start, len);
+ mapping_set_error(folio->mapping, error);
+ btrfs_folio_clear_writeback(fs_info, folio, start, len);
}
bio_put(bio);
@@ -576,89 +580,91 @@ static void begin_page_read(struct btrfs_fs_info *fs_info, struct page *page)
}
/*
- * after a readpage IO is done, we need to:
- * clear the uptodate bits on error
- * set the uptodate bits if things worked
- * set the page up to date if all extents in the tree are uptodate
- * clear the lock bit in the extent tree
- * unlock the page if there are no other extents locked for it
+ * After a data read IO is done, we need to:
+ *
+ * - clear the uptodate bits on error
+ * - set the uptodate bits if things worked
+ * - set the folio up to date if all extents in the tree are uptodate
+ * - clear the lock bit in the extent tree
+ * - unlock the folio if there are no other extents locked for it
*
* Scheduling is not allowed, so the extent state tree is expected
* to have one and only one object corresponding to this IO.
*/
-static void end_bio_extent_readpage(struct btrfs_bio *bbio)
+static void end_bbio_data_read(struct btrfs_bio *bbio)
{
struct bio *bio = &bbio->bio;
- struct bio_vec *bvec;
struct processed_extent processed = { 0 };
+ struct folio_iter fi;
/*
* The offset to the beginning of a bio, since one bio can never be
* larger than UINT_MAX, u32 here is enough.
*/
u32 bio_offset = 0;
- struct bvec_iter_all iter_all;
ASSERT(!bio_flagged(bio, BIO_CLONED));
- bio_for_each_segment_all(bvec, bio, iter_all) {
+ bio_for_each_folio_all(fi, &bbio->bio) {
bool uptodate = !bio->bi_status;
- struct page *page = bvec->bv_page;
- struct inode *inode = page->mapping->host;
+ struct folio *folio = fi.folio;
+ struct inode *inode = folio->mapping->host;
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
const u32 sectorsize = fs_info->sectorsize;
u64 start;
u64 end;
u32 len;
+ /* For now only order 0 folios are supported for data. */
+ ASSERT(folio_order(folio) == 0);
btrfs_debug(fs_info,
- "end_bio_extent_readpage: bi_sector=%llu, err=%d, mirror=%u",
- bio->bi_iter.bi_sector, bio->bi_status,
+ "%s: bi_sector=%llu, err=%d, mirror=%u",
+ __func__, bio->bi_iter.bi_sector, bio->bi_status,
bbio->mirror_num);
/*
* We always issue full-sector reads, but if some block in a
- * page fails to read, blk_update_request() will advance
+ * folio fails to read, blk_update_request() will advance
* bv_offset and adjust bv_len to compensate. Print a warning
* for unaligned offsets, and an error if they don't add up to
* a full sector.
*/
- if (!IS_ALIGNED(bvec->bv_offset, sectorsize))
+ if (!IS_ALIGNED(fi.offset, sectorsize))
btrfs_err(fs_info,
- "partial page read in btrfs with offset %u and length %u",
- bvec->bv_offset, bvec->bv_len);
- else if (!IS_ALIGNED(bvec->bv_offset + bvec->bv_len,
- sectorsize))
+ "partial page read in btrfs with offset %zu and length %zu",
+ fi.offset, fi.length);
+ else if (!IS_ALIGNED(fi.offset + fi.length, sectorsize))
btrfs_info(fs_info,
- "incomplete page read with offset %u and length %u",
- bvec->bv_offset, bvec->bv_len);
+ "incomplete page read with offset %zu and length %zu",
+ fi.offset, fi.length);
- start = page_offset(page) + bvec->bv_offset;
- end = start + bvec->bv_len - 1;
- len = bvec->bv_len;
+ start = folio_pos(folio) + fi.offset;
+ end = start + fi.length - 1;
+ len = fi.length;
if (likely(uptodate)) {
loff_t i_size = i_size_read(inode);
- pgoff_t end_index = i_size >> PAGE_SHIFT;
+ pgoff_t end_index = i_size >> folio_shift(folio);
/*
* Zero out the remaining part if this range straddles
* i_size.
*
- * Here we should only zero the range inside the bvec,
+ * Here we should only zero the range inside the folio,
* not touch anything else.
*
* NOTE: i_size is exclusive while end is inclusive.
*/
- if (page->index == end_index && i_size <= end) {
- u32 zero_start = max(offset_in_page(i_size),
- offset_in_page(start));
+ if (folio_index(folio) == end_index && i_size <= end) {
+ u32 zero_start = max(offset_in_folio(folio, i_size),
+ offset_in_folio(folio, start));
+ u32 zero_len = offset_in_folio(folio, end) + 1 -
+ zero_start;
- zero_user_segment(page, zero_start,
- offset_in_page(end) + 1);
+ folio_zero_range(folio, zero_start, zero_len);
}
}
/* Update page status and unlock. */
- end_page_read(page, uptodate, start, len);
+ end_page_read(folio_page(folio, 0), uptodate, start, len);
endio_readpage_release_extent(&processed, BTRFS_I(inode),
start, end, uptodate);
@@ -1030,7 +1036,7 @@ static int btrfs_do_readpage(struct page *page, struct extent_map **em_cached,
memzero_page(page, zero_offset, iosize);
}
}
- bio_ctrl->end_io_func = end_bio_extent_readpage;
+ bio_ctrl->end_io_func = end_bbio_data_read;
begin_page_read(fs_info, page);
while (cur <= end) {
enum btrfs_compression_type compress_type = BTRFS_COMPRESS_NONE;
@@ -1334,7 +1340,7 @@ static noinline_for_stack int __extent_writepage_io(struct btrfs_inode *inode,
return 1;
}
- bio_ctrl->end_io_func = end_bio_extent_writepage;
+ bio_ctrl->end_io_func = end_bbio_data_write;
while (cur <= end) {
u32 len = end - cur + 1;
u64 disk_bytenr;
@@ -1636,24 +1642,23 @@ static struct extent_buffer *find_extent_buffer_nolock(
return NULL;
}
-static void extent_buffer_write_end_io(struct btrfs_bio *bbio)
+static void end_bbio_meta_write(struct btrfs_bio *bbio)
{
struct extent_buffer *eb = bbio->private;
struct btrfs_fs_info *fs_info = eb->fs_info;
bool uptodate = !bbio->bio.bi_status;
- struct bvec_iter_all iter_all;
- struct bio_vec *bvec;
+ struct folio_iter fi;
u32 bio_offset = 0;
if (!uptodate)
set_btree_ioerr(eb);
- bio_for_each_segment_all(bvec, &bbio->bio, iter_all) {
+ bio_for_each_folio_all(fi, &bbio->bio) {
u64 start = eb->start + bio_offset;
- struct page *page = bvec->bv_page;
- u32 len = bvec->bv_len;
+ struct folio *folio = fi.folio;
+ u32 len = fi.length;
- btrfs_folio_clear_writeback(fs_info, page_folio(page), start, len);
+ btrfs_folio_clear_writeback(fs_info, folio, start, len);
bio_offset += len;
}
@@ -1702,7 +1707,7 @@ static noinline_for_stack void write_one_eb(struct extent_buffer *eb,
bbio = btrfs_bio_alloc(INLINE_EXTENT_BUFFER_PAGES,
REQ_OP_WRITE | REQ_META | wbc_to_write_flags(wbc),
- eb->fs_info, extent_buffer_write_end_io, eb);
+ eb->fs_info, end_bbio_meta_write, eb);
bbio->bio.bi_iter.bi_sector = eb->start >> SECTOR_SHIFT;
bio_set_dev(&bbio->bio, fs_info->fs_devices->latest_dev->bdev);
wbc_init_bio(wbc, &bbio->bio);
@@ -4036,13 +4041,12 @@ void set_extent_buffer_uptodate(struct extent_buffer *eb)
}
}
-static void extent_buffer_read_end_io(struct btrfs_bio *bbio)
+static void end_bbio_meta_read(struct btrfs_bio *bbio)
{
struct extent_buffer *eb = bbio->private;
struct btrfs_fs_info *fs_info = eb->fs_info;
bool uptodate = !bbio->bio.bi_status;
- struct bvec_iter_all iter_all;
- struct bio_vec *bvec;
+ struct folio_iter fi;
u32 bio_offset = 0;
eb->read_mirror = bbio->mirror_num;
@@ -4058,15 +4062,15 @@ static void extent_buffer_read_end_io(struct btrfs_bio *bbio)
set_bit(EXTENT_BUFFER_READ_ERR, &eb->bflags);
}
- bio_for_each_segment_all(bvec, &bbio->bio, iter_all) {
+ bio_for_each_folio_all(fi, &bbio->bio) {
+ struct folio *folio = fi.folio;
u64 start = eb->start + bio_offset;
- struct page *page = bvec->bv_page;
- u32 len = bvec->bv_len;
+ u32 len = fi.length;
if (uptodate)
- btrfs_folio_set_uptodate(fs_info, page_folio(page), start, len);
+ btrfs_folio_set_uptodate(fs_info, folio, start, len);
else
- btrfs_folio_clear_uptodate(fs_info, page_folio(page), start, len);
+ btrfs_folio_clear_uptodate(fs_info, folio, start, len);
bio_offset += len;
}
@@ -4107,7 +4111,7 @@ int read_extent_buffer_pages(struct extent_buffer *eb, int wait, int mirror_num,
bbio = btrfs_bio_alloc(INLINE_EXTENT_BUFFER_PAGES,
REQ_OP_READ | REQ_META, eb->fs_info,
- extent_buffer_read_end_io, eb);
+ end_bbio_meta_read, eb);
bbio->bio.bi_iter.bi_sector = eb->start >> SECTOR_SHIFT;
bbio->inode = BTRFS_I(eb->fs_info->btree_inode);
bbio->file_offset = eb->start;
generated by cgit v1.2.3 (git 2.39.0) at 2024-10-19 17:45:27 +0300