netfs: Fix i_size update for partial transfer

Fix netfs_unbuffered_write_done() to pass the amount written to
netfs_update_i_size() in the event of a partial transfer that ends in an
error.

That said, it might be better for the filesystem to mark the inode data as
invalid and recheck it in case something like a network error occurred that
prevented the reply from the server from being received.

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/20260827134304.2075713-5-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>
This commit is contained in:
David Howells 2026-08-27 14:42:57 +01:00 • committed by Christian Brauner
commit 741416a800
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