netfs: Fix unbuffered/DIO write partial transfer error return

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Fix unbuffered/DIO write to return the amount of data transferred in
preference to an error if a partial transfer has been achieved, and to
prefer an error stashed in the request over the one returned by
netfs_unbuffered_write() (likely -EINTR or -ERESTARTSYS).

Fixes: a0b4c7a491 ("netfs: Fix unbuffered/DIO writes to dispatch subrequests in strict sequence")
Link: https://sashiko.dev/#/patchset/20260824120224.504575-1-dhowells%40redhat.com
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/20260827134304.2075713-3-dhowells@redhat.com
Acked-by: Paulo Alcantara <pc@manguebit.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>

...

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David Howells 2026-08-27 14:42:55 +01:00 • committed by Christian Brauner

parent f18e8774f4

commit c753a33664

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1 changed files with 5 additions and 7 deletions

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fs/netfs/direct_write.c

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