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| author |   Shyam Prasad N <sprasad@microsoft.com> | 2021-07-19 13:54:16 +0000 |
|---|---|---|
| committer |   Steve French <stfrench@microsoft.com> | 2022-01-02 20:38:46 -0600 |
| commit | f486ef8e2003f6c308d0db81ea116c880a760d4f (patch) | |
| tree | 2155ed49bc0f7375733c96186fd90a5c99e8201a /fs/cifs/smb2proto.h | |
| parent | cifs: track individual channel status using chans_need_reconnect (diff) | |
| download | linux-dev-f486ef8e2003f6c308d0db81ea116c880a760d4f.tar.xz linux-dev-f486ef8e2003f6c308d0db81ea116c880a760d4f.zip | |
cifs: use the chans_need_reconnect bitmap for reconnect status
We use the concept of "binding" when one of the secondary channel
is in the process of connecting/reconnecting to the server. Till this
binding process completes, and the channel is bound to an existing session,
we redirect traffic from other established channels on the binding channel,
effectively blocking all traffic till individual channels get reconnected.
With my last set of commits, we can get rid of this binding serialization.
We now have a bitmap of connection states for each channel. We will use
this bitmap instead for tracking channel status.
Having a bitmap also now enables us to keep the session alive, as long
as even a single channel underneath is alive.
Unfortunately, this also meant that we need to supply the tcp connection
info for the channel during all negotiate and session setup functions.
These changes have resulted in a slightly bigger code churn.
However, I expect perf and robustness improvements in the mchan scenario
after this change.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/smb2proto.h')
| -rw-r--r-- | fs/cifs/smb2proto.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h index 096fada16ebd..4a7062fd1c26 100644 --- a/fs/cifs/smb2proto.h +++ b/fs/cifs/smb2proto.h @@ -123,8 +123,11 @@ extern void smb2_set_related(struct smb_rqst *rqst); * SMB2 Worker functions - most of protocol specific implementation details * are contained within these calls. */ -extern int SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses); +extern int SMB2_negotiate(const unsigned int xid, + struct cifs_ses *ses, + struct TCP_Server_Info *server); extern int SMB2_sess_setup(const unsigned int xid, struct cifs_ses *ses, + struct TCP_Server_Info *server, const struct nls_table *nls_cp); extern int SMB2_logoff(const unsigned int xid, struct cifs_ses *ses); extern int SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, @@ -276,6 +279,7 @@ extern void smb2_copy_fs_info_to_kstatfs( struct kstatfs *kst); extern int smb311_crypto_shash_allocate(struct TCP_Server_Info *server); extern int smb311_update_preauth_hash(struct cifs_ses *ses, + struct TCP_Server_Info *server, struct kvec *iov, int nvec); extern int smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon, |