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mm: remove test_set_page_writeback()

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Patch series "Make folio_start_writeback return void".

Most of the folio flag-setting functions return void. 
folio_start_writeback is gratuitously different; the only two filesystems
that do anything with the return value emit debug messages if it's already
set, and we can (and should) do that internally without bothering the
filesystem to do it.


This patch (of 4):

There are no more callers of this wrapper.

Link: https://lkml.kernel.org/r/20231108204605.745109-1-willy@infradead.org
Link: https://lkml.kernel.org/r/20231108204605.745109-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Steve French <sfrench@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2023-11-08 20:46:02 +00:00 committed by Andrew Morton
parent 78c3c11268
commit c36f9d3d2c
1 changed files with 0 additions and 5 deletions
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5
include/linux/page-flags.h
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@ -780,11 +780,6 @@ bool set_page_writeback(struct page *page);
#define folio_start_writeback_keepwrite(folio) \
__folio_start_writeback(folio, true)
static inline bool test_set_page_writeback(struct page *page)
{
return set_page_writeback(page);
}
static __always_inline bool folio_test_head(struct folio *folio)
{
return test_bit(PG_head, folio_flags(folio, FOLIO_PF_ANY));