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iomap: export iomap_writeback_folio 

Allow fuse to use iomap_writeback_folio for folio laundering.  Note
that the caller needs to manually submit the pending writeback context.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/20250710133343.399917-11-hch@lst.de
Reviewed-by: Joanne Koong <joannelkoong@gmail.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christoph Hellwig 2025-07-10 15:33:34 +02:00 committed by Christian Brauner
parent f8b6a94a4c
commit 8b217cf779
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
2 changed files with 3 additions and 2 deletions
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4
fs/iomap/buffered-io.c
View File

@ -1634,8 +1634,7 @@ static bool iomap_writeback_handle_eof(struct folio *folio, struct inode *inode,
return true; return true;
} }
static int iomap_writeback_folio(struct iomap_writepage_ctx *wpc, int iomap_writeback_folio(struct iomap_writepage_ctx *wpc, struct folio *folio)
struct folio *folio)
{ {
struct iomap_folio_state *ifs = folio->private; struct iomap_folio_state *ifs = folio->private;
struct inode *inode = wpc->inode; struct inode *inode = wpc->inode;
@ -1717,6 +1716,7 @@ static int iomap_writeback_folio(struct iomap_writepage_ctx *wpc,
mapping_set_error(inode->i_mapping, error); mapping_set_error(inode->i_mapping, error);
return error; return error;
} }
EXPORT_SYMBOL_GPL(iomap_writeback_folio);
int int
iomap_writepages(struct iomap_writepage_ctx *wpc) iomap_writepages(struct iomap_writepage_ctx *wpc)

1
include/linux/iomap.h
View File

@ -466,6 +466,7 @@ void iomap_start_folio_write(struct inode *inode, struct folio *folio,
void iomap_finish_folio_write(struct inode *inode, struct folio *folio, void iomap_finish_folio_write(struct inode *inode, struct folio *folio,
size_t len); size_t len);
int iomap_writeback_folio(struct iomap_writepage_ctx *wpc, struct folio *folio);
int iomap_writepages(struct iomap_writepage_ctx *wpc); int iomap_writepages(struct iomap_writepage_ctx *wpc);
/* /*