The patch titled
Subject: fs/buffer: remove bh_submit_read() helper
has been added to the -mm mm-unstable branch. Its filename is
fs-buffer-remove-bh_submit_read-helper.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/fs-buffer-remove-bh_submit_read-helper.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Zhang Yi <yi.zhang@xxxxxxxxxx>
Subject: fs/buffer: remove bh_submit_read() helper
Date: Thu, 1 Sep 2022 21:35:05 +0800
bh_submit_read() has no user anymore, just remove it.
Link: https://lkml.kernel.org/r/20220901133505.2510834-15-yi.zhang@xxxxxxxxxx
Signed-off-by: Zhang Yi <yi.zhang@xxxxxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/buffer.c | 25 -------------------------
include/linux/buffer_head.h | 1 -
2 files changed, 26 deletions(-)
--- a/fs/buffer.c~fs-buffer-remove-bh_submit_read-helper
+++ a/fs/buffer.c
@@ -3025,31 +3025,6 @@ void __bh_read_batch(int nr, struct buff
}
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)
{
unsigned long nrpages;
--- a/include/linux/buffer_head.h~fs-buffer-remove-bh_submit_read-helper
+++ a/include/linux/buffer_head.h
@@ -230,7 +230,6 @@ int submit_bh(blk_opf_t, struct buffer_h
void write_boundary_block(struct block_device *bdev,
sector_t bblock, unsigned blocksize);
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);
void __bh_read_batch(int nr, struct buffer_head *bhs[],
blk_opf_t op_flags, bool force_lock);
_
Patches currently in -mm which might be from yi.zhang@xxxxxxxxxx are
fs-buffer-remove-__breadahead_gfp.patch
fs-buffer-add-some-new-buffer-read-helpers.patch
fs-buffer-replace-ll_rw_block.patch
gfs2-replace-ll_rw_block.patch
isofs-replace-ll_rw_block.patch
jbd2-replace-ll_rw_block.patch
ntfs3-replace-ll_rw_block.patch
ocfs2-replace-ll_rw_block.patch
reiserfs-replace-ll_rw_block.patch
udf-replace-ll_rw_block.patch
ufs-replace-ll_rw_block.patch
fs-buffer-remove-ll_rw_block-helper.patch
ext2-replace-bh_submit_read-helper-with-bh_read_locked.patch
fs-buffer-remove-bh_submit_read-helper.patch
