diff options
author | David Howells <dhowells@redhat.com> | 2022-02-21 11:38:17 +0000 |
---|---|---|
committer | David Howells <dhowells@redhat.com> | 2023-12-28 09:45:24 +0000 |
commit | 153a9961b551101cd38e94e26cd92fbfd198b19b (patch) | |
tree | 4d45c248dbdaf8ded00848164de353f239f8bac9 /fs/netfs/io.c | |
parent | 016dc8516aec8719641e7aaaacd78d344759178e (diff) |
netfs: Implement unbuffered/DIO write support
Implement support for unbuffered writes and direct I/O writes. If the
write is misaligned with respect to the fscrypt block size, then RMW cycles
are performed if necessary. DIO writes are a special case of unbuffered
writes with extra restriction imposed, such as block size alignment
requirements.
Also provide a field that can tell the code to add some extra space onto
the bounce buffer for use by the filesystem in the case of a
content-encrypted file.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
Diffstat (limited to 'fs/netfs/io.c')
-rw-r--r-- | fs/netfs/io.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/netfs/io.c b/fs/netfs/io.c index c972415c8aad..01c7ff27228e 100644 --- a/fs/netfs/io.c +++ b/fs/netfs/io.c @@ -645,7 +645,7 @@ static bool netfs_rreq_submit_slice(struct netfs_io_request *rreq, subreq->debug_index = (*_debug_index)++; subreq->start = rreq->start + rreq->submitted; - subreq->len = rreq->len - rreq->submitted; + subreq->len = io_iter->count; _debug("slice %llx,%zx,%zx", subreq->start, subreq->len, rreq->submitted); list_add_tail(&subreq->rreq_link, &rreq->subrequests); |