diff options
| author | David Howells <dhowells@redhat.com> | 2026-09-09 08:20:56 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2026-10-06 15:32:34 +0200 |
| commit | 9f40ea2aac9e8ba0770d4661a9214601b50b36dd (patch) | |
| tree | f587b44a6b10fd57e834751450fa89bd5bbe0d05 /include/linux | |
| parent | a288bad9c0a8d52113f7e013d56f1c631a2dedd4 (diff) | |
netfs: Remove the writethrough code
Remove the netfs writethrough code as it's very tricky to get the locking
right and it will probably deadlock if used in conjunction with Ceph
snapshots because it excludes writeback for the duration, but to flush out
old snapshots, it does a synchronous flush that invokes writeback.
Instead, O_SYNC writes do a flush after performing the write - which is
already there as the callers of netfs_perform_write() all call
generic_write_sync().
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/20260909072105.1663687-3-dhowells@redhat.com
Reviewed-by: 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>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/netfs.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/netfs.h b/include/linux/netfs.h index 12dd286e65c8..0fb4884daf6d 100644 --- a/include/linux/netfs.h +++ b/include/linux/netfs.h @@ -208,7 +208,6 @@ enum netfs_io_origin { NETFS_DIO_READ, /* This is a direct I/O read */ NETFS_WRITEBACK, /* This write was triggered by writepages */ NETFS_WRITEBACK_SINGLE, /* This monolithic write was triggered by writepages */ - NETFS_WRITETHROUGH, /* This write was made by netfs_perform_write() */ NETFS_UNBUFFERED_WRITE, /* This is an unbuffered write */ NETFS_DIO_WRITE, /* This is a direct I/O write */ NETFS_PGPRIV2_COPY_TO_CACHE, /* [DEPRECATED] This is writing read data to the cache */ |