diff options
Diffstat (limited to 'fs/cifs/cifsglob.h')
| -rw-r--r-- | fs/cifs/cifsglob.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 68da230c7f11..d589e687611d 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -16,6 +16,7 @@ #include <linux/mempool.h> #include <linux/workqueue.h> #include <linux/utsname.h> +#include <linux/sched/mm.h> #include <linux/netfs.h> #include "cifs_fs_sb.h" #include "cifsacl.h" @@ -628,7 +629,8 @@ struct TCP_Server_Info { unsigned int in_flight; /* number of requests on the wire to server */ unsigned int max_in_flight; /* max number of requests that were on wire */ spinlock_t req_lock; /* protect the two values above */ - struct mutex srv_mutex; + struct mutex _srv_mutex; + unsigned int nofs_flag; struct task_struct *tsk; char server_GUID[16]; __u16 sec_mode; @@ -743,6 +745,22 @@ struct TCP_Server_Info { #endif }; +static inline void cifs_server_lock(struct TCP_Server_Info *server) +{ + unsigned int nofs_flag = memalloc_nofs_save(); + + mutex_lock(&server->_srv_mutex); + server->nofs_flag = nofs_flag; +} + +static inline void cifs_server_unlock(struct TCP_Server_Info *server) +{ + unsigned int nofs_flag = server->nofs_flag; + + mutex_unlock(&server->_srv_mutex); + memalloc_nofs_restore(nofs_flag); +} + struct cifs_credits { unsigned int value; unsigned int instance; |