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block: remove blkdev_write_begin() and blkdev_write_end()

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Remove blkdev_write_begin(), blkdev_write_end(), and their entries in
def_blk_aops. These have been unreachable since commit 487c607df7
("block: use iomap for writes to block devices") switched block device
buffered writes from generic_perform_write() to
iomap_file_buffered_write(), which bypasses aops->write_begin/end.

Signed-off-by: Tal Zussman <tz2294@columbia.edu>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://patch.msgid.link/20260525-blk-write-cleanup-v1-1-391c073e3831@columbia.edu
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Tal Zussman 2026-05-25 14:25:55 -04:00 committed by Jens Axboe
parent 7817bdf8ee
commit ee9895ae5a
1 changed files with 0 additions and 24 deletions
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24
block/fops.c
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@ -499,36 +499,12 @@ static void blkdev_readahead(struct readahead_control *rac)
mpage_readahead(rac, blkdev_get_block);
}
static int blkdev_write_begin(const struct kiocb *iocb,
struct address_space *mapping, loff_t pos,
unsigned len, struct folio **foliop,
void **fsdata)
{
return block_write_begin(mapping, pos, len, foliop, blkdev_get_block);
}
static int blkdev_write_end(const struct kiocb *iocb,
struct address_space *mapping,
loff_t pos, unsigned len, unsigned copied,
struct folio *folio, void *fsdata)
{
int ret;
ret = block_write_end(pos, len, copied, folio);
folio_unlock(folio);
folio_put(folio);
return ret;
}
const struct address_space_operations def_blk_aops = {
.dirty_folio = block_dirty_folio,
.invalidate_folio = block_invalidate_folio,
.read_folio = blkdev_read_folio,
.readahead = blkdev_readahead,
.writepages = blkdev_writepages,
.write_begin = blkdev_write_begin,
.write_end = blkdev_write_end,
.migrate_folio = buffer_migrate_folio_norefs,
.is_dirty_writeback = buffer_check_dirty_writeback,
};