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mm/fs: convert inode_attach_wb() to take a folio

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Patch series "Writeback folio conversions".

Remove more calls to compound_head() by passing folios around instead of
pages.


This patch (of 2):

The only caller of inode_attach_wb() which doesn't pass NULL already has a
folio, so convert the whole call-chain to take folios.

Link: https://lkml.kernel.org/r/20230116192507.2146150-1-willy@infradead.org
Link: https://lkml.kernel.org/r/20230116192507.2146150-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle)
2023-01-16 19:25:06 +00:00
committed by Andrew Morton
parent 14ddee4126
commit 9cfb816b1c
3 changed files with 10 additions and 10 deletions
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12
include/linux/writeback.h
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@@ -207,7 +207,7 @@ static inline void wait_on_inode(struct inode *inode)
#include <linux/cgroup.h>
#include <linux/bio.h>
void __inode_attach_wb(struct inode *inode, struct page *page);
void __inode_attach_wb(struct inode *inode, struct folio *folio);
void wbc_attach_and_unlock_inode(struct writeback_control *wbc,
struct inode *inode)
__releases(&inode->i_lock);
@@ -222,16 +222,16 @@ bool cleanup_offline_cgwb(struct bdi_writeback *wb);
/**
* inode_attach_wb - associate an inode with its wb
* @inode: inode of interest
* @page: page being dirtied (may be NULL)
* @folio: folio being dirtied (may be NULL)
*
* If @inode doesn't have its wb, associate it with the wb matching the
* memcg of @page or, if @page is NULL, %current. May be called w/ or w/o
* memcg of @folio or, if @folio is NULL, %current. May be called w/ or w/o
* @inode->i_lock.
*/
static inline void inode_attach_wb(struct inode *inode, struct page *page)
static inline void inode_attach_wb(struct inode *inode, struct folio *folio)
{
if (!inode->i_wb)
__inode_attach_wb(inode, page);
__inode_attach_wb(inode, folio);
}
/**
@@ -290,7 +290,7 @@ static inline void wbc_init_bio(struct writeback_control *wbc, struct bio *bio)
#else /* CONFIG_CGROUP_WRITEBACK */
static inline void inode_attach_wb(struct inode *inode, struct page *page)
static inline void inode_attach_wb(struct inode *inode, struct folio *folio)
{
}