diff options
Diffstat (limited to 'fs/cifs/cifsglob.h')
| -rw-r--r-- | fs/cifs/cifsglob.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 85aa1bc930f1..6ccff44dbd4b 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -1376,6 +1376,11 @@ void cifsFileInfo_put(struct cifsFileInfo *cifs_file); struct cifsInodeInfo { bool can_cache_brlcks; struct list_head llist; /* locks helb by this inode */ + /* + * NOTE: Some code paths call down_read(lock_sem) twice, so + * we must always use use cifs_down_write() instead of down_write() + * for this semaphore to avoid deadlocks. + */ struct rw_semaphore lock_sem; /* protect the fields above */ /* BB add in lists for dirty pages i.e. write caching info for oplock */ struct list_head openFileList; @@ -1504,6 +1509,7 @@ struct mid_q_entry { struct TCP_Server_Info *server; /* server corresponding to this mid */ __u64 mid; /* multiplex id */ __u16 credits; /* number of credits consumed by this mid */ + __u16 credits_received; /* number of credits from the response */ __u32 pid; /* process id */ __u32 sequence_number; /* for CIFS signing */ unsigned long when_alloc; /* when mid was created */ @@ -1515,6 +1521,7 @@ struct mid_q_entry { mid_callback_t *callback; /* call completion callback */ mid_handle_t *handle; /* call handle mid callback */ void *callback_data; /* general purpose pointer for callback */ + struct task_struct *creator; void *resp_buf; /* pointer to received SMB header */ unsigned int resp_buf_size; int mid_state; /* wish this were enum but can not pass to wait_event */ |