ceph: convert ceph_submit_write() to folios

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Convert the request assembly loop and error path in ceph_submit_write()
to folios. This drops ceph's uses of the set_page_writeback(),
redirty_page_for_writepage(), and unlock_page() compatibility wrappers
in the writeback submission path.

Add ceph_folio_start_fscache(), a folio counterpart of
ceph_set_page_fscache(). The remaining caller of the latter in
write_folio_nounlock() will be converted separately.

In total, this removes eight calls to compound_head() hidden in the
page-based APIs and one explicit page_folio() call in
ceph_undo_wrbuffer_claim()'s caller, while adding four explicit
page_folio() calls.

Note that get_writepages_data_length() must still be passed the
possibly-bounce folio, not the unwrapped pagecache folio, as it checks
fscrypt_is_bounce_folio() to round encrypted lengths up to the fscrypt
block size.

No functional change.

Signed-off-by: Tal Zussman <tz2294@columbia.edu>
Reviewed-by: Alex Markuze <amarkuze@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

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Tal Zussman 2026-09-02 12:11:30 -04:00 • committed by Ilya Dryomov

parent 2352e50d97

commit 00da1176cc

1 changed files with 26 additions and 17 deletions

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fs/ceph/addr.c

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