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fs/buffer: remove bh_submit_read() helper

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bh_submit_read() has no user anymore, just remove it.

Link: https://lkml.kernel.org/r/20220901133505.2510834-15-yi.zhang@huawei.com
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Zhang Yi 2022-09-01 21:35:05 +08:00 committed by Andrew Morton
parent 28cf755910
commit 454552d014
2 changed files with 0 additions and 26 deletions
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25
fs/buffer.c
View File

@ -3025,31 +3025,6 @@ void __bh_read_batch(int nr, struct buffer_head *bhs[],
} }
EXPORT_SYMBOL(__bh_read_batch); EXPORT_SYMBOL(__bh_read_batch);
/**
* bh_submit_read - Submit a locked buffer for reading
* @bh: struct buffer_head
*
* Returns zero on success and -EIO on error.
*/
int bh_submit_read(struct buffer_head *bh)
{
BUG_ON(!buffer_locked(bh));
if (buffer_uptodate(bh)) {
unlock_buffer(bh);
return 0;
}
get_bh(bh);
bh->b_end_io = end_buffer_read_sync;
submit_bh(REQ_OP_READ, bh);
wait_on_buffer(bh);
if (buffer_uptodate(bh))
return 0;
return -EIO;
}
EXPORT_SYMBOL(bh_submit_read);
void __init buffer_init(void) void __init buffer_init(void)
{ {
unsigned long nrpages; unsigned long nrpages;

1
include/linux/buffer_head.h
View File

@ -230,7 +230,6 @@ int submit_bh(blk_opf_t, struct buffer_head *);
void write_boundary_block(struct block_device *bdev, void write_boundary_block(struct block_device *bdev,
sector_t bblock, unsigned blocksize); sector_t bblock, unsigned blocksize);
int bh_uptodate_or_lock(struct buffer_head *bh); int bh_uptodate_or_lock(struct buffer_head *bh);
int bh_submit_read(struct buffer_head *bh);
int __bh_read(struct buffer_head *bh, blk_opf_t op_flags, bool wait); int __bh_read(struct buffer_head *bh, blk_opf_t op_flags, bool wait);
void __bh_read_batch(int nr, struct buffer_head *bhs[], void __bh_read_batch(int nr, struct buffer_head *bhs[],
blk_opf_t op_flags, bool force_lock); blk_opf_t op_flags, bool force_lock);