mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

buffer: use b_folio in end_buffer_async_write() 

Save 76 bytes from avoiding the call to compound_head() in SetPageError().
Also avoid the call to compound_head() in end_page_writeback().

Link: https://lkml.kernel.org/r/20221215214402.3522366-6-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2022-12-15 21:43:55 +00:00 committed by Andrew Morton
parent 2e2dba15d1
commit 743ed81ec1
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
fs/buffer.c
View File

@ -344,21 +344,21 @@ void end_buffer_async_write(struct buffer_head *bh, int uptodate)
unsigned long flags;
struct buffer_head *first;
struct buffer_head *tmp;
struct page *page;
struct folio *folio;
BUG_ON(!buffer_async_write(bh));
page = bh->b_page;
folio = bh->b_folio;
if (uptodate) {
set_buffer_uptodate(bh);
} else {
buffer_io_error(bh, ", lost async page write");
mark_buffer_write_io_error(bh);
clear_buffer_uptodate(bh);
SetPageError(page);
folio_set_error(folio);
}
first = page_buffers(page);
first = folio_buffers(folio);
spin_lock_irqsave(&first->b_uptodate_lock, flags);
clear_buffer_async_write(bh);
@ -372,7 +372,7 @@ void end_buffer_async_write(struct buffer_head *bh, int uptodate)
tmp = tmp->b_this_page;
}
spin_unlock_irqrestore(&first->b_uptodate_lock, flags);
end_page_writeback(page);
folio_end_writeback(folio);
return;
still_busy: