cifs: obtain file access during backup intent lookup (resend)

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / fs / cifs / cifsproto.h

diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 3d99fe9afccc7141d7a38d5982fe066470fb4700..5144e9fbeb8cc9d58682dac81b66da81a81a3329 100644 (file)
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -24,6 +24,7 @@
 
 struct statfs;
 struct smb_vol;
+struct smb_rqst;
 
 /*
  *****************************************************************
@@ -35,6 +36,8 @@ extern struct smb_hdr *cifs_buf_get(void);
 extern void cifs_buf_release(void *);
 extern struct smb_hdr *cifs_small_buf_get(void);
 extern void cifs_small_buf_release(void *);
+extern void cifs_rqst_page_to_kvec(struct smb_rqst *rqst, unsigned int idx,
+                                       struct kvec *iov);
 extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
                        unsigned int /* length */);
 extern unsigned int _get_xid(void);
@@ -67,20 +70,20 @@ extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
 extern void cifs_delete_mid(struct mid_q_entry *mid);
 extern void cifs_wake_up_task(struct mid_q_entry *mid);
-extern int cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
-                          unsigned int nvec, mid_receive_t *receive,
-                          mid_callback_t *callback, void *cbdata,
-                          const int flags);
+extern int cifs_call_async(struct TCP_Server_Info *server,
+                       struct smb_rqst *rqst,
+                       mid_receive_t *receive, mid_callback_t *callback,
+                       void *cbdata, const int flags);
 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
                        struct smb_hdr * /* input */ ,
                        struct smb_hdr * /* out */ ,
                        int * /* bytes returned */ , const int);
 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
                            char *in_buf, int flags);
-extern int cifs_setup_request(struct cifs_ses *, struct kvec *, unsigned int,
-                             struct mid_q_entry **);
-extern int cifs_setup_async_request(struct TCP_Server_Info *, struct kvec *,
-                                   unsigned int, struct mid_q_entry **);
+extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
+                               struct smb_rqst *);
+extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
+                                               struct smb_rqst *);
 extern int cifs_check_receive(struct mid_q_entry *mid,
                        struct TCP_Server_Info *server, bool log_error);
 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
@@ -100,7 +103,7 @@ extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
                            unsigned int bytes_written);
 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
-extern unsigned int smbCalcSize(struct smb_hdr *ptr);
+extern unsigned int smbCalcSize(void *buf);
 extern int decode_negTokenInit(unsigned char *security_blob, int length,
                        struct TCP_Server_Info *server);
 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
@@ -121,6 +124,9 @@ extern u64 cifs_UnixTimeToNT(struct timespec);
 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
                                      int offset);
 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
+extern int cifs_unlock_range(struct cifsFileInfo *cfile,
+                            struct file_lock *flock, const unsigned int xid);
+extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
 
 extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
                                              struct file *file,
@@ -134,6 +140,8 @@ void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
                                     FILE_UNIX_BASIC_INFO *info,
                                     struct cifs_sb_info *cifs_sb);
+extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
+                                       struct cifs_sb_info *);
 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
 extern struct inode *cifs_iget(struct super_block *sb,
                               struct cifs_fattr *fattr);
@@ -174,6 +182,17 @@ extern struct smb_vol *cifs_get_volume_info(char *mount_data,
 extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
 extern void cifs_umount(struct cifs_sb_info *);
 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
+extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
+                                   __u64 length, __u8 type,
+                                   struct cifsLockInfo **conf_lock,
+                                   bool rw_check);
+extern void cifs_add_pending_open(struct cifs_fid *fid,
+                                 struct tcon_link *tlink,
+                                 struct cifs_pending_open *open);
+extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
+                                        struct tcon_link *tlink,
+                                        struct cifs_pending_open *open);
+extern void cifs_del_pending_open(struct cifs_pending_open *open);
 
 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
 extern void cifs_dfs_release_automount_timer(void);
@@ -184,6 +203,10 @@ extern void cifs_dfs_release_automount_timer(void);
 void cifs_proc_init(void);
 void cifs_proc_clean(void);
 
+extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
+extern void cifs_free_llist(struct list_head *llist);
+extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
+
 extern int cifs_negotiate_protocol(const unsigned int xid,
                                   struct cifs_ses *ses);
 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
@@ -195,10 +218,10 @@ extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
                    const struct nls_table *);
 
 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
-               const char *searchName, const struct nls_table *nls_codepage,
+               const char *searchName, struct cifs_sb_info *cifs_sb,
                __u16 *searchHandle, __u16 search_flags,
                struct cifs_search_info *psrch_inf,
-               int map, const char dirsep);
+               bool msearch);
 
 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
                __u16 searchHandle, __u16 search_flags,
@@ -394,10 +417,12 @@ extern void sesInfoFree(struct cifs_ses *);
 extern struct cifs_tcon *tconInfoAlloc(void);
 extern void tconInfoFree(struct cifs_tcon *);
 
-extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
+extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
+                  __u32 *pexpected_response_sequence_number);
 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
                          __u32 *);
-extern int cifs_verify_signature(struct kvec *iov, unsigned int nr_iov,
+extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
+extern int cifs_verify_signature(struct smb_rqst *rqst,
                                 struct TCP_Server_Info *server,
                                __u32 expected_sequence_number);
 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,