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buffer: Remove mark_buffer_async_write()

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There are no more callers of this function, so delete it.
end_buffer_async_write() then has only one caller left, so
inline it into bh_end_async_write().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Link: https://patch.msgid.link/20260528173150.1093780-27-willy@infradead.org
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2026-05-28 18:31:39 +01:00 committed by Christian Brauner
parent d755b0a994
commit e6eff92648
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GPG Key ID: 91C61BC06578DCA2
2 changed files with 12 additions and 27 deletions
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38
fs/buffer.c
View File

@ -438,12 +438,19 @@ static void bh_end_async_read(struct bio *bio)
end_buffer_async_read(bh, uptodate);
}
/*
* Completion handler for block_write_full_folio() - folios which are unlocked
* during I/O, and which have the writeback flag cleared upon I/O completion.
/**
* bh_end_async_write - I/O end handler for async folio writes
* @bio: The bio being completed.
*
* Pass this function to bh_submit() if you're doing the equivalent of
* block_write_full_folio(). That is, the folio is unlocked, and will
* have its writeback flag cleared once all async write buffers have
* completed.
*/
static void end_buffer_async_write(struct buffer_head *bh, int uptodate)
void bh_end_async_write(struct bio *bio)
{
struct buffer_head *bh;
bool success = bio_endio_bh(bio, &bh);
unsigned long flags;
struct buffer_head *first;
struct buffer_head *tmp;
@ -452,7 +459,7 @@ static void end_buffer_async_write(struct buffer_head *bh, int uptodate)
BUG_ON(!buffer_async_write(bh));
folio = bh->b_folio;
if (uptodate) {
if (success) {
set_buffer_uptodate(bh);
} else {
buffer_io_error(bh, ", lost async page write");
@ -480,29 +487,8 @@ static void end_buffer_async_write(struct buffer_head *bh, int uptodate)
still_busy:
spin_unlock_irqrestore(&first->b_uptodate_lock, flags);
}
/**
* bh_end_async_write - I/O end handler for async folio writes
* @bio: The bio being completed.
*
* Pass this function to bh_submit() if you're doing the equivalent of
* block_write_full_folio().
*/
void bh_end_async_write(struct bio *bio)
{
struct buffer_head *bh;
bool success = bio_endio_bh(bio, &bh);
end_buffer_async_write(bh, success);
}
EXPORT_SYMBOL(bh_end_async_write);
void mark_buffer_async_write(struct buffer_head *bh)
{
bh->b_end_io = end_buffer_async_write;
set_buffer_async_write(bh);
}
EXPORT_SYMBOL(mark_buffer_async_write);
/*
* fs/buffer.c contains helper functions for buffer-backed address space's

1
include/linux/buffer_head.h
View File

@ -224,7 +224,6 @@ static inline void clean_bdev_bh_alias(struct buffer_head *bh)
clean_bdev_aliases(bh->b_bdev, bh->b_blocknr, 1);
}
void mark_buffer_async_write(struct buffer_head *bh);
void __wait_on_buffer(struct buffer_head *);
wait_queue_head_t *bh_waitq_head(struct buffer_head *bh);
struct buffer_head *__find_get_block(struct block_device *bdev, sector_t block,