All callers are passing end_buffer_async_write as this argument, so we
can hardcode references to it within __block_write_full_folio().
That lets us make end_buffer_async_write() static.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
fs/buffer.c | 22 ++++++++++------------
fs/gfs2/aops.c | 2 +-
include/linux/buffer_head.h | 4 +---
3 files changed, 12 insertions(+), 16 deletions(-)
diff --git a/fs/buffer.c b/fs/buffer.c
index 2e69f0ddca37..d5ce6b29c893 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -372,10 +372,10 @@ static void end_buffer_async_read_io(struct buffer_head *bh, int uptodate)
}
/*
- * Completion handler for block_write_full_folio() - pages which are unlocked
- * during I/O, and which have PageWriteback cleared upon I/O completion.
+ * 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.
*/
-void end_buffer_async_write(struct buffer_head *bh, int uptodate)
+static void end_buffer_async_write(struct buffer_head *bh, int uptodate)
{
unsigned long flags;
struct buffer_head *first;
@@ -415,7 +415,6 @@ void end_buffer_async_write(struct buffer_head *bh, int uptodate)
spin_unlock_irqrestore(&first->b_uptodate_lock, flags);
return;
}
-EXPORT_SYMBOL(end_buffer_async_write);
/*
* If a page's buffers are under async readin (end_buffer_async_read
@@ -1787,8 +1786,7 @@ static struct buffer_head *folio_create_buffers(struct folio *folio,
* causes the writes to be flagged as synchronous writes.
*/
int __block_write_full_folio(struct inode *inode, struct folio *folio,
- get_block_t *get_block, struct writeback_control *wbc,
- bh_end_io_t *handler)
+ get_block_t *get_block, struct writeback_control *wbc)
{
int err;
sector_t block;
@@ -1867,7 +1865,8 @@ int __block_write_full_folio(struct inode *inode, struct folio *folio,
continue;
}
if (test_clear_buffer_dirty(bh)) {
- mark_buffer_async_write_endio(bh, handler);
+ mark_buffer_async_write_endio(bh,
+ end_buffer_async_write);
} else {
unlock_buffer(bh);
}
@@ -1920,7 +1919,8 @@ int __block_write_full_folio(struct inode *inode, struct folio *folio,
if (buffer_mapped(bh) && buffer_dirty(bh) &&
!buffer_delay(bh)) {
lock_buffer(bh);
- mark_buffer_async_write_endio(bh, handler);
+ mark_buffer_async_write_endio(bh,
+ end_buffer_async_write);
} else {
/*
* The buffer may have been set dirty during
@@ -2704,8 +2704,7 @@ int block_write_full_folio(struct folio *folio, struct writeback_control *wbc,
/* Is the folio fully inside i_size? */
if (folio_pos(folio) + folio_size(folio) <= i_size)
- return __block_write_full_folio(inode, folio, get_block, wbc,
- end_buffer_async_write);
+ return __block_write_full_folio(inode, folio, get_block, wbc);
/* Is the folio fully outside i_size? (truncate in progress) */
if (folio_pos(folio) >= i_size) {
@@ -2722,8 +2721,7 @@ int block_write_full_folio(struct folio *folio, struct writeback_control *wbc,
*/
folio_zero_segment(folio, offset_in_folio(folio, i_size),
folio_size(folio));
- return __block_write_full_folio(inode, folio, get_block, wbc,
- end_buffer_async_write);
+ return __block_write_full_folio(inode, folio, get_block, wbc);
}
sector_t generic_block_bmap(struct address_space *mapping, sector_t block,
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index f986cd032b76..9914d7f54f7d 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -108,7 +108,7 @@ static int gfs2_write_jdata_folio(struct folio *folio,
folio_size(folio));
return __block_write_full_folio(inode, folio, gfs2_get_block_noalloc,
- wbc, end_buffer_async_write);
+ wbc);
}
/**
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 396b2adf24bf..d78454a4dd1f 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -205,7 +205,6 @@ struct buffer_head *create_empty_buffers(struct folio *folio,
unsigned long blocksize, unsigned long b_state);
void end_buffer_read_sync(struct buffer_head *bh, int uptodate);
void end_buffer_write_sync(struct buffer_head *bh, int uptodate);
-void end_buffer_async_write(struct buffer_head *bh, int uptodate);
/* Things to do with buffers at mapping->private_list */
void mark_buffer_dirty_inode(struct buffer_head *bh, struct inode *inode);
@@ -255,8 +254,7 @@ void block_invalidate_folio(struct folio *folio, size_t offset, size_t length);
int block_write_full_folio(struct folio *folio, struct writeback_control *wbc,
void *get_block);
int __block_write_full_folio(struct inode *inode, struct folio *folio,
- get_block_t *get_block, struct writeback_control *wbc,
- bh_end_io_t *handler);
+ get_block_t *get_block, struct writeback_control *wbc);
int block_read_full_folio(struct folio *, get_block_t *);
bool block_is_partially_uptodate(struct folio *, size_t from, size_t count);
int block_write_begin(struct address_space *mapping, loff_t pos, unsigned len,
--
2.42.0
