netfs: Fix is-caching check in read-retry
The read-retry code checks the NETFS_RREQ_COPY_TO_CACHE flag to determine
if there might be failed reads from the cache that need turning into reads
from the server, with the intention of skipping the complicated part if it
can. The code that set the flag, however, got lost during the read-side
rewrite.
Fix the check to see if the cache_resources are valid instead. The flag
can then be removed.
Fixes: ee4cdf7ba857 ("netfs: Speed up buffered reading")
Signed-off-by: David Howells <dhowe...@redhat.com>
cc: Jeff Layton <jlay...@kernel.org>
cc: ne...@lists.linux.dev
cc: linux-fsde...@vger.kernel.org
---
fs/netfs/read_retry.c | 2 +-
include/linux/netfs.h | 1 -
2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/netfs/read_retry.c b/fs/netfs/read_retry.c
index 0e72e9226fc8..21b4a54e545e 100644
--- a/fs/netfs/read_retry.c
+++ b/fs/netfs/read_retry.c
@@ -49,7 +49,7 @@ static void netfs_retry_read_subrequests(struct
netfs_io_request *rreq)
* up to the first permanently failed one.
*/
if (!rreq->netfs_ops->prepare_read &&
- !test_bit(NETFS_RREQ_COPY_TO_CACHE, &rreq->flags)) {
+ !rreq->cache_resources.ops) {
struct netfs_io_subrequest *subreq;
list_for_each_entry(subreq, &rreq->subrequests, rreq_link) {
diff --git a/include/linux/netfs.h b/include/linux/netfs.h
index 4083d77e3f39..ecdd5ced16a8 100644
--- a/include/linux/netfs.h
+++ b/include/linux/netfs.h
@@ -269,7 +269,6 @@ struct netfs_io_request {
size_t prev_donated; /* Fallback for
subreq->prev_donated */
refcount_t ref;
unsigned long flags;
-#define NETFS_RREQ_COPY_TO_CACHE 1 /* Need to write to the cache */
#define NETFS_RREQ_NO_UNLOCK_FOLIO 2 /* Don't unlock no_unlock_folio
on completion */
#define NETFS_RREQ_DONT_UNLOCK_FOLIOS 3 /* Don't unlock the folios on
completion */
#define NETFS_RREQ_FAILED 4 /* The request failed */
