diff options
| author | David Howells <dhowells@redhat.com> | 2023-11-22 17:18:17 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2023-12-28 09:45:25 +0000 |
| commit | e0ace6ca98bef0d8d354040f13ffc0a498813ee9 (patch) | |
| tree | bf426f6aa6e3c0fa9f4b186eb79857675b7148ae /fs/cachefiles/ondemand.c | |
| parent | 80645bd4aa33a5c325f11b8dc6b38b38410ad5c0 (diff) | |
| download | lwn-e0ace6ca98bef0d8d354040f13ffc0a498813ee9.tar.gz lwn-e0ace6ca98bef0d8d354040f13ffc0a498813ee9.zip | |
netfs, cachefiles: Pass upper bound length to allow expansion
Make netfslib pass the maximum length to the ->prepare_write() op to tell
the cache how much it can expand the length of a write to. This allows a
write to the server at the end of a file to be limited to a few bytes
whilst writing an entire block to the cache (something required by direct
I/O).
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/cachefiles/ondemand.c')
| -rw-r--r-- | fs/cachefiles/ondemand.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/cachefiles/ondemand.c b/fs/cachefiles/ondemand.c index 0254ed39f68c..9301d1eb0504 100644 --- a/fs/cachefiles/ondemand.c +++ b/fs/cachefiles/ondemand.c @@ -52,7 +52,7 @@ static ssize_t cachefiles_ondemand_fd_write_iter(struct kiocb *kiocb, return -ENOBUFS; cachefiles_begin_secure(cache, &saved_cred); - ret = __cachefiles_prepare_write(object, file, &pos, &len, true); + ret = __cachefiles_prepare_write(object, file, &pos, &len, len, true); cachefiles_end_secure(cache, saved_cred); if (ret < 0) return ret; |