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| author | Ronnie Sahlberg <lsahlber@redhat.com> | 2019-03-08 12:58:20 +1000 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-03-14 19:32:35 -0500 |
| commit | b227d215deef4f3528b8f754accef4db03539a59 (patch) | |
| tree | 99fafcb617c74ccb739dd290be960723091142b2 /fs | |
| parent | 4230cff8c0b7aaee7203e434b05a9acc1635fc04 (diff) | |
| download | linux-b227d215deef4f3528b8f754accef4db03539a59.tar.gz linux-b227d215deef4f3528b8f754accef4db03539a59.tar.bz2 linux-b227d215deef4f3528b8f754accef4db03539a59.zip | |
cifs: wait_for_free_credits() make it possible to wait for >=1 credits
Change wait_for_free_credits() to allow waiting for >=1 credits instead of just
a single credit.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cifs/cifsglob.h | 4 | ||||
| -rw-r--r-- | fs/cifs/smb2ops.c | 2 | ||||
| -rw-r--r-- | fs/cifs/transport.c | 14 |
3 files changed, 10 insertions, 10 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index f293e052e351..ddb299494cd6 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -735,13 +735,13 @@ in_flight(struct TCP_Server_Info *server) } static inline bool -has_credits(struct TCP_Server_Info *server, int *credits) +has_credits(struct TCP_Server_Info *server, int *credits, int num_credits) { int num; spin_lock(&server->req_lock); num = *credits; spin_unlock(&server->req_lock); - return num > 0; + return num >= num_credits; } static inline void diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 085e91436da7..1654d50b8aef 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -185,7 +185,7 @@ smb2_wait_mtu_credits(struct TCP_Server_Info *server, unsigned int size, spin_unlock(&server->req_lock); cifs_num_waiters_inc(server); rc = wait_event_killable(server->request_q, - has_credits(server, &server->credits)); + has_credits(server, &server->credits, 1)); cifs_num_waiters_dec(server); if (rc) return rc; diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 9fcc4a82943d..1951f9f74bb2 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -486,8 +486,8 @@ smb_send(struct TCP_Server_Info *server, struct smb_hdr *smb_buffer, } static int -wait_for_free_credits(struct TCP_Server_Info *server, const int flags, - unsigned int *instance) +wait_for_free_credits(struct TCP_Server_Info *server, const int num_credits, + const int flags, unsigned int *instance) { int rc; int *credits; @@ -513,11 +513,11 @@ wait_for_free_credits(struct TCP_Server_Info *server, const int flags, } while (1) { - if (*credits <= 0) { + if (*credits < num_credits) { spin_unlock(&server->req_lock); cifs_num_waiters_inc(server); rc = wait_event_killable(server->request_q, - has_credits(server, credits)); + has_credits(server, credits, num_credits)); cifs_num_waiters_dec(server); if (rc) return rc; @@ -535,8 +535,8 @@ wait_for_free_credits(struct TCP_Server_Info *server, const int flags, /* update # of requests on the wire to server */ if ((flags & CIFS_TIMEOUT_MASK) != CIFS_BLOCKING_OP) { - *credits -= 1; - server->in_flight++; + *credits -= num_credits; + server->in_flight += num_credits; *instance = server->reconnect_instance; } spin_unlock(&server->req_lock); @@ -550,7 +550,7 @@ static int wait_for_free_request(struct TCP_Server_Info *server, const int flags, unsigned int *instance) { - return wait_for_free_credits(server, flags, instance); + return wait_for_free_credits(server, 1, flags, instance); } int |