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authorDavid Howells <dhowells@redhat.com>2021-02-04 09:15:21 +0300
committerSteve French <stfrench@microsoft.com>2021-02-26 04:08:06 +0300
commitcf0604a686b11175d8beae60281c4ccc95aaa5c2 (patch)
tree62ad782990865ba28f748e9e780925e1cc7a7693 /fs/cifs/cifsproto.h
parent5ff2836ed3a5c24420a7235be25a462594cdc4ea (diff)
downloadlinux-cf0604a686b11175d8beae60281c4ccc95aaa5c2.tar.xz
cifs: use discard iterator to discard unneeded network data more efficiently
The iterator, ITER_DISCARD, that can only be used in READ mode and just discards any data copied to it, was added to allow a network filesystem to discard any unwanted data sent by a server. Convert cifs_discard_from_socket() to use this. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/cifsproto.h')
-rw-r--r--fs/cifs/cifsproto.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 32f7a013402e..75ce6f742b8d 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -232,6 +232,8 @@ extern unsigned int setup_special_user_owner_ACE(struct cifs_ace *pace);
extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
unsigned int to_read);
+extern ssize_t cifs_discard_from_socket(struct TCP_Server_Info *server,
+ size_t to_read);
extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
struct page *page,
unsigned int page_offset,