| Message ID | 164365168321.2045659.15295459927789942552.stgit@warthog.procyon.org.uk |
|---|---|
| State | New |
| Headers | show |
| Series | [1/2] cifs: Fix the readahead conversion to manage the batch when reading from cache | expand |
diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 1b41b6f2a04b..e7af802dcfa6 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -4446,7 +4446,7 @@ static void cifs_readahead(struct readahead_control *ractl) * by the cache. */ page = readahead_page(ractl); - BUG_ON(!page); + last_batch_size = 1 << thp_order(page); if (cifs_readpage_from_fscache(ractl->mapping->host, page) < 0) { /*
Fix the readahead conversion to correctly manage the last batch skipping when reading from cache. This involves a readahead batch of one page or one folio, so set the batch size according to the number of constituent pages (should be 1 for a filesystem that doesn't do multipage folios yet). Signed-off-by: David Howells <dhowells@redhat.com> cc: Steve French <smfrench@gmail.com> cc: Rohith Surabattula <rohiths.msft@gmail.com> cc: Shyam Prasad N <nspmangalore@gmail.com> cc: Jeff Layton <jlayton@kernel.org> cc: linux-cifs@vger.kernel.org --- fs/cifs/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)