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fs: Convert drop_buffers() to use a folio 

All callers now have a folio.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2022-05-01 06:39:50 -04:00
parent 68189fef88
commit 6439476311
1 changed files with 8 additions and 8 deletions
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16
fs/buffer.c
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@ -3180,10 +3180,10 @@ static inline int buffer_busy(struct buffer_head *bh)
(bh->b_state & ((1 << BH_Dirty) | (1 << BH_Lock)));
}
static int
drop_buffers(struct page *page, struct buffer_head **buffers_to_free)
static bool
drop_buffers(struct folio *folio, struct buffer_head **buffers_to_free)
{
struct buffer_head *head = page_buffers(page);
struct buffer_head *head = folio_buffers(folio);
struct buffer_head *bh;
bh = head;
@ -3201,10 +3201,10 @@ drop_buffers(struct page *page, struct buffer_head **buffers_to_free)
bh = next;
} while (bh != head);
*buffers_to_free = head;
detach_page_private(page);
return 1;
folio_detach_private(folio);
return true;
failed:
return 0;
return false;
}
bool try_to_free_buffers(struct folio *folio)
@ -3218,12 +3218,12 @@ bool try_to_free_buffers(struct folio *folio)
return false;
if (mapping == NULL) { /* can this still happen? */
ret = drop_buffers(&folio->page, &buffers_to_free);
ret = drop_buffers(folio, &buffers_to_free);
goto out;
}
spin_lock(&mapping->private_lock);
ret = drop_buffers(&folio->page, &buffers_to_free);
ret = drop_buffers(folio, &buffers_to_free);
/*
* If the filesystem writes its buffers by hand (eg ext3)