Make CIFSSMBOpen take share_flags as a parm that allows us
to pass new O_DENY* flags to the server.

Signed-off-by: Pavel Shilovsky <pias...@etersoft.ru>
---
 fs/cifs/cifsacl.c   |  6 ++++--
 fs/cifs/cifsglob.h  | 12 +++++++++++-
 fs/cifs/cifsproto.h |  9 +++++----
 fs/cifs/cifssmb.c   | 47 +++++++++++++++++++++++++----------------------
 fs/cifs/dir.c       | 13 ++++++++-----
 fs/cifs/file.c      | 12 ++++++++----
 fs/cifs/inode.c     | 11 ++++++-----
 fs/cifs/link.c      | 10 +++++-----
 fs/cifs/readdir.c   |  2 +-
 fs/cifs/smb1ops.c   | 15 ++++++++-------
 fs/cifs/smb2file.c  | 10 +++++-----
 fs/cifs/smb2inode.c |  4 ++--
 fs/cifs/smb2ops.c   | 10 ++++++----
 fs/cifs/smb2pdu.c   |  6 +++---
 fs/cifs/smb2proto.h | 14 ++++++++------
 15 files changed, 105 insertions(+), 76 deletions(-)

diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index 5cbd00e..222b989 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -891,7 +891,8 @@ static struct cifs_ntsd *get_cifs_acl_by_path(struct 
cifs_sb_info *cifs_sb,
                create_options |= CREATE_OPEN_BACKUP_INTENT;
 
        rc = CIFSSMBOpen(xid, tcon, path, FILE_OPEN, READ_CONTROL,
-                       create_options, &fid, &oplock, NULL, cifs_sb->local_nls,
+                       FILE_SHARE_ALL, create_options, &fid, &oplock,
+                       NULL, cifs_sb->local_nls,
                        cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
        if (!rc) {
                rc = CIFSSMBGetCIFSACL(xid, tcon, fid, &pntsd, pacllen);
@@ -952,7 +953,8 @@ int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
                access_flags = WRITE_DAC;
 
        rc = CIFSSMBOpen(xid, tcon, path, FILE_OPEN, access_flags,
-                       create_options, &fid, &oplock, NULL, cifs_sb->local_nls,
+                       FILE_SHARE_ALL, create_options, &fid, &oplock,
+                       NULL, cifs_sb->local_nls,
                        cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
        if (rc) {
                cERROR(1, "Unable to open file to set ACL");
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index e6899ce..f1d62ed 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -310,7 +310,7 @@ struct smb_version_operations {
                               struct cifs_sb_info *);
        /* open a file for non-posix mounts */
        int (*open)(const unsigned int, struct cifs_tcon *, const char *, int,
-                   int, int, struct cifs_fid *, __u32 *, FILE_ALL_INFO *,
+                   int, int, int, struct cifs_fid *, __u32 *, FILE_ALL_INFO *,
                    struct cifs_sb_info *);
        /* set fid protocol-specific info */
        void (*set_fid)(struct cifsFileInfo *, struct cifs_fid *, __u32);
@@ -947,6 +947,16 @@ struct cifsFileInfo {
        struct work_struct oplock_break; /* work for oplock breaks */
 };
 
+#define CIFS_DENY_RW_FLAGS_SHIFT       22
+#define CIFS_DENY_DEL_FLAG_SHIFT       23
+
+static inline int cifs_get_share_flags(unsigned int flags)
+{
+       return (flags & O_DENYMAND) ?
+               (((~(flags >> CIFS_DENY_RW_FLAGS_SHIFT)) & 3) |
+                ((~(flags >> CIFS_DENY_DEL_FLAG_SHIFT)) & 4)) : FILE_SHARE_ALL;
+}
+
 struct cifs_io_parms {
        __u16 netfid;
 #ifdef CONFIG_CIFS_SMB2
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 1988c1b..9661607 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -361,10 +361,11 @@ extern int CIFSSMBQueryReparseLinkInfo(const unsigned int 
xid,
                        const struct nls_table *nls_codepage);
 #endif /* temporarily unused until cifs_symlink fixed */
 extern int CIFSSMBOpen(const unsigned int xid, struct cifs_tcon *tcon,
-                       const char *fileName, const int disposition,
-                       const int access_flags, const int omode,
-                       __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
-                       const struct nls_table *nls_codepage, int remap);
+                       const char *file_name, const int disposition,
+                       const int access_flags, const int share_flags,
+                       const int omode, __u16 *netfid, int *oplock,
+                       FILE_ALL_INFO *, const struct nls_table *nls_codepage,
+                       int remap);
 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
                        const char *fileName, const int disposition,
                        const int access_flags, const int omode,
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 76d0d29..9c4632f 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1289,10 +1289,11 @@ OldOpenRetry:
 
 int
 CIFSSMBOpen(const unsigned int xid, struct cifs_tcon *tcon,
-           const char *fileName, const int openDisposition,
-           const int access_flags, const int create_options, __u16 *netfid,
-           int *pOplock, FILE_ALL_INFO *pfile_info,
-           const struct nls_table *nls_codepage, int remap)
+           const char *file_name, const int disposition,
+           const int access_flags, const int share_flags,
+           const int create_options, __u16 *netfid, int *oplock,
+           FILE_ALL_INFO *file_info, const struct nls_table *nls_codepage,
+           int remap)
 {
        int rc = -EACCES;
        OPEN_REQ *pSMB = NULL;
@@ -1313,26 +1314,28 @@ openRetry:
                count = 1;      /* account for one byte pad to word boundary */
                name_len =
                    cifsConvertToUTF16((__le16 *) (pSMB->fileName + 1),
-                                      fileName, PATH_MAX, nls_codepage, remap);
+                                      file_name, PATH_MAX, nls_codepage,
+                                      remap);
                name_len++;     /* trailing null */
                name_len *= 2;
                pSMB->NameLength = cpu_to_le16(name_len);
        } else {                /* BB improve check for buffer overruns BB */
                count = 0;      /* no pad */
-               name_len = strnlen(fileName, PATH_MAX);
+               name_len = strnlen(file_name, PATH_MAX);
                name_len++;     /* trailing null */
                pSMB->NameLength = cpu_to_le16(name_len);
-               strncpy(pSMB->fileName, fileName, name_len);
+               strncpy(pSMB->fileName, file_name, name_len);
        }
-       if (*pOplock & REQ_OPLOCK)
+       if (*oplock & REQ_OPLOCK)
                pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK);
-       else if (*pOplock & REQ_BATCHOPLOCK)
+       else if (*oplock & REQ_BATCHOPLOCK)
                pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK);
        pSMB->DesiredAccess = cpu_to_le32(access_flags);
        pSMB->AllocationSize = 0;
-       /* set file as system file if special file such
-          as fifo and server expecting SFU style and
-          no Unix extensions */
+       /*
+        * set file as system file if special file such as fifo and server
+        * expecting SFU style and no Unix extensions
+        */
        if (create_options & CREATE_OPTION_SPECIAL)
                pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM);
        else
@@ -1347,8 +1350,8 @@ openRetry:
        if (create_options & CREATE_OPTION_READONLY)
                pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);
 
-       pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL);
-       pSMB->CreateDisposition = cpu_to_le32(openDisposition);
+       pSMB->ShareAccess = cpu_to_le32(share_flags);
+       pSMB->CreateDisposition = cpu_to_le32(disposition);
        pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK);
        /* BB Expirement with various impersonation levels and verify */
        pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION);
@@ -1366,20 +1369,20 @@ openRetry:
        if (rc) {
                cFYI(1, "Error in Open = %d", rc);
        } else {
-               *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */
+               *oplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */
                *netfid = pSMBr->Fid;   /* cifs fid stays in le */
                /* Let caller know file was created so we can set the mode. */
                /* Do we care about the CreateAction in any other cases? */
                if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction)
-                       *pOplock |= CIFS_CREATE_ACTION;
-               if (pfile_info) {
-                       memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime,
+                       *oplock |= CIFS_CREATE_ACTION;
+               if (file_info) {
+                       memcpy((char *)file_info, (char *)&pSMBr->CreationTime,
                                36 /* CreationTime to Attributes */);
                        /* the file_info buf is endian converted by caller */
-                       pfile_info->AllocationSize = pSMBr->AllocationSize;
-                       pfile_info->EndOfFile = pSMBr->EndOfFile;
-                       pfile_info->NumberOfLinks = cpu_to_le32(1);
-                       pfile_info->DeletePending = 0;
+                       file_info->AllocationSize = pSMBr->AllocationSize;
+                       file_info->EndOfFile = pSMBr->EndOfFile;
+                       file_info->NumberOfLinks = cpu_to_le32(1);
+                       file_info->DeletePending = 0;
                }
        }
 
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 8719bbe..6975072 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -203,6 +203,7 @@ cifs_do_create(struct inode *inode, struct dentry 
*direntry, unsigned int xid,
        FILE_ALL_INFO *buf = NULL;
        struct inode *newinode = NULL;
        int disposition;
+       int share_access;
        struct TCP_Server_Info *server = tcon->ses->server;
 
        *oplock = 0;
@@ -293,6 +294,8 @@ cifs_do_create(struct inode *inode, struct dentry 
*direntry, unsigned int xid,
        else
                cFYI(1, "Create flag not set in create function");
 
+       share_access = cifs_get_share_flags(oflags);
+
        /*
         * BB add processing to set equivalent of mode - e.g. via CreateX with
         * ACLs
@@ -320,8 +323,8 @@ cifs_do_create(struct inode *inode, struct dentry 
*direntry, unsigned int xid,
                create_options |= CREATE_OPEN_BACKUP_INTENT;
 
        rc = server->ops->open(xid, tcon, full_path, disposition,
-                              desired_access, create_options, fid, oplock,
-                              buf, cifs_sb);
+                              desired_access, share_access, create_options,
+                              fid, oplock, buf, cifs_sb);
        if (rc) {
                cFYI(1, "cifs_create returned 0x%x", rc);
                goto out;
@@ -626,9 +629,9 @@ int cifs_mknod(struct inode *inode, struct dentry 
*direntry, umode_t mode,
        if (backup_cred(cifs_sb))
                create_options |= CREATE_OPEN_BACKUP_INTENT;
 
-       rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_CREATE,
-                        GENERIC_WRITE, create_options,
-                        &fileHandle, &oplock, buf, cifs_sb->local_nls,
+       rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_CREATE, GENERIC_WRITE,
+                        FILE_SHARE_ALL, create_options, &fileHandle, &oplock,
+                        buf, cifs_sb->local_nls,
                         cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
        if (rc)
                goto mknod_out;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 8ea6ca5..3ad484c 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -174,6 +174,7 @@ cifs_nt_open(char *full_path, struct inode *inode, struct 
cifs_sb_info *cifs_sb,
 {
        int rc;
        int desired_access;
+       int share_access;
        int disposition;
        int create_options = CREATE_NOT_DIR;
        FILE_ALL_INFO *buf;
@@ -209,6 +210,7 @@ cifs_nt_open(char *full_path, struct inode *inode, struct 
cifs_sb_info *cifs_sb,
  *********************************************************************/
 
        disposition = cifs_get_disposition(f_flags);
+       share_access = cifs_get_share_flags(f_flags);
 
        /* BB pass O_SYNC flag through on file attributes .. BB */
 
@@ -220,8 +222,8 @@ cifs_nt_open(char *full_path, struct inode *inode, struct 
cifs_sb_info *cifs_sb,
                create_options |= CREATE_OPEN_BACKUP_INTENT;
 
        rc = server->ops->open(xid, tcon, full_path, disposition,
-                              desired_access, create_options, fid, oplock, buf,
-                              cifs_sb);
+                              desired_access, share_access, create_options,
+                              fid, oplock, buf, cifs_sb);
 
        if (rc)
                goto out;
@@ -579,6 +581,7 @@ cifs_reopen_file(struct cifsFileInfo *cfile, bool can_flush)
        struct inode *inode;
        char *full_path = NULL;
        int desired_access;
+       int share_access;
        int disposition = FILE_OPEN;
        int create_options = CREATE_NOT_DIR;
        struct cifs_fid fid;
@@ -643,6 +646,7 @@ cifs_reopen_file(struct cifsFileInfo *cfile, bool can_flush)
        }
 
        desired_access = cifs_convert_flags(cfile->f_flags);
+       share_access = cifs_get_share_flags(cfile->f_flags);
 
        if (backup_cred(cifs_sb))
                create_options |= CREATE_OPEN_BACKUP_INTENT;
@@ -658,8 +662,8 @@ cifs_reopen_file(struct cifsFileInfo *cfile, bool can_flush)
         * not dirty locally we could do this.
         */
        rc = server->ops->open(xid, tcon, full_path, disposition,
-                              desired_access, create_options, &fid, &oplock,
-                              NULL, cifs_sb);
+                              desired_access, share_access, create_options,
+                              &fid, &oplock, NULL, cifs_sb);
        if (rc) {
                mutex_unlock(&cfile->fh_mutex);
                cFYI(1, "cifs_reopen returned 0x%x", rc);
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index ed6208f..a497dfa 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -396,8 +396,8 @@ cifs_sfu_type(struct cifs_fattr *fattr, const unsigned char 
*path,
        tcon = tlink_tcon(tlink);
 
        rc = CIFSSMBOpen(xid, tcon, path, FILE_OPEN, GENERIC_READ,
-                        CREATE_NOT_DIR, &netfid, &oplock, NULL,
-                        cifs_sb->local_nls,
+                        FILE_SHARE_ALL, CREATE_NOT_DIR, &netfid, &oplock,
+                        NULL, cifs_sb->local_nls,
                         cifs_sb->mnt_cifs_flags &
                                CIFS_MOUNT_MAP_SPECIAL_CHR);
        if (rc == 0) {
@@ -987,8 +987,9 @@ cifs_rename_pending_delete(const char *full_path, struct 
dentry *dentry,
        tcon = tlink_tcon(tlink);
 
        rc = CIFSSMBOpen(xid, tcon, full_path, FILE_OPEN,
-                        DELETE|FILE_WRITE_ATTRIBUTES, CREATE_NOT_DIR,
-                        &netfid, &oplock, NULL, cifs_sb->local_nls,
+                        DELETE|FILE_WRITE_ATTRIBUTES, FILE_SHARE_ALL,
+                        CREATE_NOT_DIR, &netfid, &oplock, NULL,
+                        cifs_sb->local_nls,
                         cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
        if (rc != 0)
                goto out;
@@ -1509,7 +1510,7 @@ cifs_do_rename(const unsigned int xid, struct dentry 
*from_dentry,
 
        /* open the file to be renamed -- we need DELETE perms */
        rc = CIFSSMBOpen(xid, tcon, from_path, FILE_OPEN, DELETE,
-                        CREATE_NOT_DIR, &srcfid, &oplock, NULL,
+                        FILE_SHARE_ALL, CREATE_NOT_DIR, &srcfid, &oplock, NULL,
                         cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
                                CIFS_MOUNT_MAP_SPECIAL_CHR);
        if (rc == 0) {
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 51dc2fb..9b4f0db 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -212,7 +212,7 @@ CIFSCreateMFSymLink(const unsigned int xid, struct 
cifs_tcon *tcon,
                create_options |= CREATE_OPEN_BACKUP_INTENT;
 
        rc = CIFSSMBOpen(xid, tcon, fromName, FILE_CREATE, GENERIC_WRITE,
-                        create_options, &netfid, &oplock, NULL,
+                        FILE_SHARE_ALL, create_options, &netfid, &oplock, NULL,
                         nls_codepage, remap);
        if (rc != 0) {
                kfree(buf);
@@ -254,8 +254,8 @@ CIFSQueryMFSymLink(const unsigned int xid, struct cifs_tcon 
*tcon,
        FILE_ALL_INFO file_info;
 
        rc = CIFSSMBOpen(xid, tcon, searchName, FILE_OPEN, GENERIC_READ,
-                        CREATE_NOT_DIR, &netfid, &oplock, &file_info,
-                        nls_codepage, remap);
+                        FILE_SHARE_ALL, CREATE_NOT_DIR, &netfid, &oplock,
+                        &file_info, nls_codepage, remap);
        if (rc != 0)
                return rc;
 
@@ -332,8 +332,8 @@ CIFSCheckMFSymlink(struct cifs_fattr *fattr,
        pTcon = tlink_tcon(tlink);
 
        rc = CIFSSMBOpen(xid, pTcon, path, FILE_OPEN, GENERIC_READ,
-                        CREATE_NOT_DIR, &netfid, &oplock, &file_info,
-                        cifs_sb->local_nls,
+                        FILE_SHARE_ALL, CREATE_NOT_DIR, &netfid, &oplock,
+                        &file_info, cifs_sb->local_nls,
                         cifs_sb->mnt_cifs_flags &
                                CIFS_MOUNT_MAP_SPECIAL_CHR);
        if (rc != 0)
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index cdd6ff4..726b52e 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -224,7 +224,7 @@ int get_symlink_reparse_path(char *full_path, struct 
cifs_sb_info *cifs_sb,
        char *tmpbuffer;
 
        rc = CIFSSMBOpen(xid, ptcon, full_path, FILE_OPEN, GENERIC_READ,
-                       OPEN_REPARSE_POINT, &fid, &oplock, NULL,
+                       FILE_SHARE_ALL, OPEN_REPARSE_POINT, &fid, &oplock, NULL,
                        cifs_sb->local_nls,
                        cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
        if (!rc) {
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 47bc5a8..d782209 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -671,9 +671,9 @@ cifs_mkdir_setinfo(struct inode *inode, const char 
*full_path,
 
 static int
 cifs_open_file(const unsigned int xid, struct cifs_tcon *tcon, const char 
*path,
-              int disposition, int desired_access, int create_options,
-              struct cifs_fid *fid, __u32 *oplock, FILE_ALL_INFO *buf,
-              struct cifs_sb_info *cifs_sb)
+              int disposition, int desired_access, int share_access,
+              int create_options, struct cifs_fid *fid, __u32 *oplock,
+              FILE_ALL_INFO *buf, struct cifs_sb_info *cifs_sb)
 {
        if (!(tcon->ses->capabilities & CAP_NT_SMBS))
                return SMBLegacyOpen(xid, tcon, path, disposition,
@@ -682,8 +682,8 @@ cifs_open_file(const unsigned int xid, struct cifs_tcon 
*tcon, const char *path,
                                     cifs_sb->local_nls, cifs_sb->mnt_cifs_flags
                                                & CIFS_MOUNT_MAP_SPECIAL_CHR);
        return CIFSSMBOpen(xid, tcon, path, disposition, desired_access,
-                          create_options, &fid->netfid, oplock, buf,
-                          cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+                          share_access, create_options, &fid->netfid, oplock,
+                          buf, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
                                                CIFS_MOUNT_MAP_SPECIAL_CHR);
 }
 
@@ -779,8 +779,9 @@ smb_set_file_info(struct inode *inode, const char 
*full_path,
        cFYI(1, "calling SetFileInfo since SetPathInfo for times not supported "
                "by this server");
        rc = CIFSSMBOpen(xid, tcon, full_path, FILE_OPEN,
-                        SYNCHRONIZE | FILE_WRITE_ATTRIBUTES, CREATE_NOT_DIR,
-                        &netfid, &oplock, NULL, cifs_sb->local_nls,
+                        SYNCHRONIZE | FILE_WRITE_ATTRIBUTES, FILE_SHARE_ALL,
+                        CREATE_NOT_DIR, &netfid, &oplock, NULL,
+                        cifs_sb->local_nls,
                         cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
 
        if (rc != 0) {
diff --git a/fs/cifs/smb2file.c b/fs/cifs/smb2file.c
index 71e6aed..7dfb50c 100644
--- a/fs/cifs/smb2file.c
+++ b/fs/cifs/smb2file.c
@@ -58,9 +58,9 @@ smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 
oplock)
 
 int
 smb2_open_file(const unsigned int xid, struct cifs_tcon *tcon, const char 
*path,
-              int disposition, int desired_access, int create_options,
-              struct cifs_fid *fid, __u32 *oplock, FILE_ALL_INFO *buf,
-              struct cifs_sb_info *cifs_sb)
+              int disposition, int desired_access, int share_access,
+              int create_options, struct cifs_fid *fid, __u32 *oplock,
+              FILE_ALL_INFO *buf, struct cifs_sb_info *cifs_sb)
 {
        int rc;
        __le16 *smb2_path;
@@ -87,8 +87,8 @@ smb2_open_file(const unsigned int xid, struct cifs_tcon 
*tcon, const char *path,
                memcpy(smb2_oplock + 1, fid->lease_key, SMB2_LEASE_KEY_SIZE);
 
        rc = SMB2_open(xid, tcon, smb2_path, &fid->persistent_fid,
-                      &fid->volatile_fid, desired_access, disposition,
-                      0, 0, smb2_oplock, smb2_data);
+                      &fid->volatile_fid, desired_access, share_access,
+                      disposition, 0, 0, smb2_oplock, smb2_data);
        if (rc)
                goto out;
 
diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
index 7064824..6af174a 100644
--- a/fs/cifs/smb2inode.c
+++ b/fs/cifs/smb2inode.c
@@ -54,8 +54,8 @@ smb2_open_op_close(const unsigned int xid, struct cifs_tcon 
*tcon,
                return -ENOMEM;
 
        rc = SMB2_open(xid, tcon, utf16_path, &persistent_fid, &volatile_fid,
-                      desired_access, create_disposition, file_attributes,
-                      create_options, &oplock, NULL);
+                      desired_access, FILE_SHARE_ALL, create_disposition,
+                      file_attributes, create_options, &oplock, NULL);
        if (rc) {
                kfree(utf16_path);
                return rc;
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index c9c7aa7..dc38434 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -222,7 +222,8 @@ smb2_is_path_accessible(const unsigned int xid, struct 
cifs_tcon *tcon,
                return -ENOMEM;
 
        rc = SMB2_open(xid, tcon, utf16_path, &persistent_fid, &volatile_fid,
-                      FILE_READ_ATTRIBUTES, FILE_OPEN, 0, 0, &oplock, NULL);
+                      FILE_READ_ATTRIBUTES, FILE_SHARE_ALL, FILE_OPEN, 0, 0,
+                      &oplock, NULL);
        if (rc) {
                kfree(utf16_path);
                return rc;
@@ -432,8 +433,8 @@ smb2_query_dir_first(const unsigned int xid, struct 
cifs_tcon *tcon,
                return -ENOMEM;
 
        rc = SMB2_open(xid, tcon, utf16_path, &persistent_fid, &volatile_fid,
-                      FILE_READ_ATTRIBUTES | FILE_READ_DATA, FILE_OPEN, 0, 0,
-                      &oplock, NULL);
+                      FILE_READ_ATTRIBUTES | FILE_READ_DATA, FILE_SHARE_ALL,
+                      FILE_OPEN, 0, 0, &oplock, NULL);
        kfree(utf16_path);
        if (rc) {
                cERROR(1, "open dir failed");
@@ -515,7 +516,8 @@ smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon,
        u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
 
        rc = SMB2_open(xid, tcon, &srch_path, &persistent_fid, &volatile_fid,
-                      FILE_READ_ATTRIBUTES, FILE_OPEN, 0, 0, &oplock, NULL);
+                      FILE_READ_ATTRIBUTES, FILE_SHARE_ALL, FILE_OPEN, 0, 0,
+                      &oplock, NULL);
        if (rc)
                return rc;
        buf->f_type = SMB2_MAGIC_NUMBER;
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 41d9d07..45fa2dc 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -910,8 +910,8 @@ parse_lease_state(struct smb2_create_rsp *rsp)
 int
 SMB2_open(const unsigned int xid, struct cifs_tcon *tcon, __le16 *path,
          u64 *persistent_fid, u64 *volatile_fid, __u32 desired_access,
-         __u32 create_disposition, __u32 file_attributes, __u32 create_options,
-         __u8 *oplock, struct smb2_file_all_info *buf)
+         __u32 share_access, __u32 create_disposition, __u32 file_attributes,
+         __u32 create_options,  __u8 *oplock, struct smb2_file_all_info *buf)
 {
        struct smb2_create_req *req;
        struct smb2_create_rsp *rsp;
@@ -940,7 +940,7 @@ SMB2_open(const unsigned int xid, struct cifs_tcon *tcon, 
__le16 *path,
        req->DesiredAccess = cpu_to_le32(desired_access);
        /* File attributes ignored on open (used in create though) */
        req->FileAttributes = cpu_to_le32(file_attributes);
-       req->ShareAccess = FILE_SHARE_ALL_LE;
+       req->ShareAccess = cpu_to_le32(share_access);
        req->CreateDisposition = cpu_to_le32(create_disposition);
        req->CreateOptions = cpu_to_le32(create_options);
        uni_path_len = (2 * UniStrnlen((wchar_t *)path, PATH_MAX)) + 2;
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 2aa3535..edff8f6 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -86,9 +86,10 @@ extern int smb2_create_hardlink(const unsigned int xid, 
struct cifs_tcon *tcon,
 
 extern int smb2_open_file(const unsigned int xid, struct cifs_tcon *tcon,
                          const char *full_path, int disposition,
-                         int desired_access, int create_options,
-                         struct cifs_fid *fid, __u32 *oplock,
-                         FILE_ALL_INFO *buf, struct cifs_sb_info *cifs_sb);
+                         int desired_access, int share_access,
+                         int create_options,  struct cifs_fid *fid,
+                         __u32 *oplock, FILE_ALL_INFO *buf,
+                         struct cifs_sb_info *cifs_sb);
 extern void smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
 extern int smb2_unlock_range(struct cifsFileInfo *cfile,
                             struct file_lock *flock, const unsigned int xid);
@@ -108,9 +109,10 @@ extern int SMB2_tcon(const unsigned int xid, struct 
cifs_ses *ses,
 extern int SMB2_tdis(const unsigned int xid, struct cifs_tcon *tcon);
 extern int SMB2_open(const unsigned int xid, struct cifs_tcon *tcon,
                     __le16 *path, u64 *persistent_fid, u64 *volatile_fid,
-                    __u32 desired_access, __u32 create_disposition,
-                    __u32 file_attributes, __u32 create_options,
-                    __u8 *oplock, struct smb2_file_all_info *buf);
+                    __u32 desired_access, __u32 share_access,
+                    __u32 create_disposition, __u32 file_attributes,
+                    __u32 create_options, __u8 *oplock,
+                    struct smb2_file_all_info *buf);
 extern int SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
                      u64 persistent_file_id, u64 volatile_file_id);
 extern int SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon,
-- 
1.8.1.2



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