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authorPavel Shilovsky <pshilovsky@samba.org>2012-05-23 16:14:34 +0400
committerSteve French <smfrench@gmail.com>2012-07-24 00:32:48 -0500
commita891f0f895f4a760fdb99636fab05e60597b8224 (patch)
tree0f911230af82d5b8cbbbbbb423b032ae8f5dc957 /fs/cifs/smb1ops.c
parentCIFS: Move trans2 processing to ops struct (diff)
downloadlinux-dev-a891f0f895f4a760fdb99636fab05e60597b8224.tar.xz
linux-dev-a891f0f895f4a760fdb99636fab05e60597b8224.zip
CIFS: Extend credit mechanism to process request type
Split all requests to echos, oplocks and others - each group uses its own credit slot. This is indicated by new flags CIFS_ECHO_OP and CIFS_OBREAK_OP that are not used now for CIFS. This change is required to support SMB2 protocol because of different processing of these commands. Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/smb1ops.c')
-rw-r--r--fs/cifs/smb1ops.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 28359e789fff..f4f839459e90 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -101,7 +101,8 @@ cifs_find_mid(struct TCP_Server_Info *server, char *buffer)
}
static void
-cifs_add_credits(struct TCP_Server_Info *server, const unsigned int add)
+cifs_add_credits(struct TCP_Server_Info *server, const unsigned int add,
+ const int optype)
{
spin_lock(&server->req_lock);
server->credits += add;
@@ -120,11 +121,17 @@ cifs_set_credits(struct TCP_Server_Info *server, const int val)
}
static int *
-cifs_get_credits_field(struct TCP_Server_Info *server)
+cifs_get_credits_field(struct TCP_Server_Info *server, const int optype)
{
return &server->credits;
}
+static unsigned int
+cifs_get_credits(struct mid_q_entry *mid)
+{
+ return 1;
+}
+
/*
* Find a free multiplex id (SMB mid). Otherwise there could be
* mid collisions which might cause problems, demultiplexing the
@@ -390,6 +397,7 @@ struct smb_version_operations smb1_operations = {
.add_credits = cifs_add_credits,
.set_credits = cifs_set_credits,
.get_credits_field = cifs_get_credits_field,
+ .get_credits = cifs_get_credits,
.get_next_mid = cifs_get_next_mid,
.read_data_offset = cifs_read_data_offset,
.read_data_length = cifs_read_data_length,