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exfat: add swap_activate support

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Commit 07d67f3e9083 ("exfat: add iomap buffered I/O support")
converted exfat buffered I/O to iomap, but did not add a
.swap_activate handler to the address_space_operations.

swapon(2) on an exfat swapfile then fails with EINVAL, which causes
LTP swap tests to fail.

Add exfat_iomap_swap_activate() and hook it into exfat_aops so exfat
uses iomap_swapfile_activate() for swapfile activation.

Fixes: 614f71ca1bdf ("exfat: add iomap buffered I/O support")
Closes: https://lore.kernel.org/all/20260603110212.3020276-1-japo@linux.ibm.com/
Signed-off-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
This commit is contained in:
Jan Polensky 2026-06-09 18:21:49 +09:00 committed by Namjae Jeon
parent 942296784b
commit 03a43677ca
3 changed files with 10 additions and 0 deletions
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1
fs/exfat/inode.c
View File

@ -309,6 +309,7 @@ static const struct address_space_operations exfat_aops = {
.error_remove_folio = generic_error_remove_folio,
.release_folio = iomap_release_folio,
.invalidate_folio = iomap_invalidate_folio,
.swap_activate = exfat_iomap_swap_activate,
};
static inline unsigned long exfat_hash(loff_t i_pos)

6
fs/exfat/iomap.c
View File

@ -263,3 +263,9 @@ const struct iomap_read_ops exfat_iomap_bio_read_ops = {
.read_folio_range = iomap_bio_read_folio_range,
.submit_read = exfat_iomap_bio_submit_read,
};
int exfat_iomap_swap_activate(struct swap_info_struct *sis,
struct file *file, sector_t *span)
{
return iomap_swapfile_activate(sis, file, span, &exfat_iomap_ops);
}

3
fs/exfat/iomap.h
View File

@ -12,4 +12,7 @@ extern const struct iomap_ops exfat_write_iomap_ops;
extern const struct iomap_writeback_ops exfat_writeback_ops;
extern const struct iomap_read_ops exfat_iomap_bio_read_ops;
int exfat_iomap_swap_activate(struct swap_info_struct *sis,
struct file *file, sector_t *span);
#endif /* _LINUX_EXFAT_IOMAP_H */