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fuse: use iomap helper to mark folio uptodate

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When fuse enables large folios, a large folio will be backed by
iomap_folio_state that keeps track of uptodate and dirty state in an
internal bitmap.

Fuse writethrough and notify store paths currently set folio uptodate
state with folio_mark_uptodate(), which touches only the folio-level
flag, but on an iomap-backed folio, that leaves the uptodate bitmap out
of sync.

Use the iomap_folio_mark_uptodate() helper to update both the folio
uptodate state and the iomap uptodate bitmap.

Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Joanne Koong 2026-07-07 15:04:50 -07:00 committed by Miklos Szeredi
parent 03e1dd35c2
commit 16f4be93c6
2 changed files with 4 additions and 2 deletions
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2
fs/fuse/file.c
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@ -1311,7 +1311,7 @@ static ssize_t fuse_fill_write_pages(struct fuse_io_args *ia,
/* If we copied full folio, mark it uptodate */
if (tmp == folio_size(folio))
folio_mark_uptodate(folio);
iomap_folio_mark_uptodate(folio);
if (folio_test_uptodate(folio)) {
folio_unlock(folio);

4
fs/fuse/notify.c
View File

@ -2,6 +2,8 @@
#include "dev.h"
#include "fuse_i.h"
#include <linux/iomap.h>
#include <linux/pagemap.h>
static int fuse_notify_poll(struct fuse_conn *fc, unsigned int size,
@ -192,7 +194,7 @@ static int fuse_notify_store(struct fuse_conn *fc, unsigned int size,
if (!folio_test_uptodate(folio) && !err && folio_offset == 0 &&
(nr_bytes == folio_size(folio) || file_size == end)) {
folio_zero_segment(folio, nr_bytes, folio_size(folio));
folio_mark_uptodate(folio);
iomap_folio_mark_uptodate(folio);
}
folio_unlock(folio);
folio_put(folio);