diff options
Diffstat (limited to 'fs/cachefiles/io.c')
| -rw-r--r-- | fs/cachefiles/io.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/cachefiles/io.c b/fs/cachefiles/io.c index 5b82ba7785cd..6a821a959b59 100644 --- a/fs/cachefiles/io.c +++ b/fs/cachefiles/io.c @@ -648,6 +648,7 @@ static void cachefiles_issue_write(struct netfs_io_subrequest *subreq) struct netfs_cache_resources *cres = &wreq->cache_resources; struct cachefiles_object *object = cachefiles_cres_object(cres); struct cachefiles_cache *cache = object->volume->cache; + struct netfs_io_stream *stream = &wreq->io_streams[subreq->stream_nr]; const struct cred *saved_cred; size_t off, pre, post, len = subreq->len; loff_t start = subreq->start; @@ -661,6 +662,7 @@ static void cachefiles_issue_write(struct netfs_io_subrequest *subreq) if (off) { pre = CACHEFILES_DIO_BLOCK_SIZE - off; if (pre >= len) { + fscache_count_dio_misfit(); netfs_write_subrequest_terminated(subreq, len, false); return; } @@ -671,10 +673,22 @@ static void cachefiles_issue_write(struct netfs_io_subrequest *subreq) } /* We also need to end on the cache granularity boundary */ + if (start + len == wreq->i_size) { + size_t part = len % CACHEFILES_DIO_BLOCK_SIZE; + size_t need = CACHEFILES_DIO_BLOCK_SIZE - part; + + if (part && stream->submit_extendable_to >= need) { + len += need; + subreq->len += need; + subreq->io_iter.count += need; + } + } + post = len & (CACHEFILES_DIO_BLOCK_SIZE - 1); if (post) { len -= post; if (len == 0) { + fscache_count_dio_misfit(); netfs_write_subrequest_terminated(subreq, post, false); return; } |