On Thu, 25 Nov 2010 17:44:58 +0300
Pavel Shilovsky <[email protected]> wrote:

> Make the code more general for use in posix and non-posix open.
> 
> Signed-off-by: Pavel Shilovsky <[email protected]>
> ---
>  fs/cifs/file.c |   54 +++++++++++++++++++++++-------------------------------
>  1 files changed, 23 insertions(+), 31 deletions(-)
> 
> diff --git a/fs/cifs/file.c b/fs/cifs/file.c
> index c7d642f..2e21cd1 100644
> --- a/fs/cifs/file.c
> +++ b/fs/cifs/file.c
> @@ -335,6 +335,7 @@ int cifs_open(struct inode *inode, struct file *file)
>       struct cifsFileInfo *pCifsFile = NULL;
>       struct cifsInodeInfo *pCifsInode;
>       char *full_path = NULL;
> +     bool posix_open_ok = false;
>       __u16 netfid;
>  
>       xid = GetXid();
> @@ -373,17 +374,7 @@ int cifs_open(struct inode *inode, struct file *file)
>                               file->f_flags, &oplock, &netfid, xid);
>               if (rc == 0) {
>                       cFYI(1, "posix open succeeded");
> -
> -                     pCifsFile = cifs_new_fileinfo(netfid, file, tlink,
> -                                                   oplock);
> -                     if (pCifsFile == NULL) {
> -                             CIFSSMBClose(xid, tcon, netfid);
> -                             rc = -ENOMEM;
> -                     }
> -
> -                     cifs_fscache_set_inode_cookie(inode, file);
> -
> -                     goto out;
> +                     posix_open_ok = true;
>               } else if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) {
>                       if (tcon->ses->serverNOS)
>                               cERROR(1, "server %s of type %s returned"
> @@ -400,37 +391,38 @@ int cifs_open(struct inode *inode, struct file *file)
>                  or DFS errors */
>       }
>  
> -     rc = cifs_nt_open(full_path, &inode, cifs_sb, tcon, file->f_flags,
> -                       &oplock, &netfid, xid);
> -     if (rc)
> -             goto out;
> +     if (!posix_open_ok) {
> +             rc = cifs_nt_open(full_path, &inode, cifs_sb, tcon,
> +                               file->f_flags, &oplock, &netfid, xid);
> +             if (rc)
> +                     goto out;
> +     }
>  
>       pCifsFile = cifs_new_fileinfo(netfid, file, tlink, oplock);
>       if (pCifsFile == NULL) {
> +             CIFSSMBClose(xid, tcon, netfid);
>               rc = -ENOMEM;
>               goto out;
>       }
>  
>       cifs_fscache_set_inode_cookie(inode, file);
>  
> -     if (oplock & CIFS_CREATE_ACTION) {
> +     if ((oplock & CIFS_CREATE_ACTION) && !posix_open_ok && tcon->unix_ext) {
>               /* time to set mode which we can not set earlier due to
>                  problems creating new read-only files */
> -             if (tcon->unix_ext) {
> -                     struct cifs_unix_set_info_args args = {
> -                             .mode   = inode->i_mode,
> -                             .uid    = NO_CHANGE_64,
> -                             .gid    = NO_CHANGE_64,
> -                             .ctime  = NO_CHANGE_64,
> -                             .atime  = NO_CHANGE_64,
> -                             .mtime  = NO_CHANGE_64,
> -                             .device = 0,
> -                     };
> -                     CIFSSMBUnixSetPathInfo(xid, tcon, full_path, &args,
> -                                            cifs_sb->local_nls,
> -                                            cifs_sb->mnt_cifs_flags &
> -                                             CIFS_MOUNT_MAP_SPECIAL_CHR);
> -             }
> +             struct cifs_unix_set_info_args args = {
> +                     .mode   = inode->i_mode,
> +                     .uid    = NO_CHANGE_64,
> +                     .gid    = NO_CHANGE_64,
> +                     .ctime  = NO_CHANGE_64,
> +                     .atime  = NO_CHANGE_64,
> +                     .mtime  = NO_CHANGE_64,
> +                     .device = 0,
> +             };
> +             CIFSSMBUnixSetPathInfo(xid, tcon, full_path, &args,
> +                                    cifs_sb->local_nls,
> +                                    cifs_sb->mnt_cifs_flags &
> +                                     CIFS_MOUNT_MAP_SPECIAL_CHR);

Hmm...we have a fid so we probably ought to switch the above call to a
SetFileInfo call. That's outside the scope of this patch though.


>       }
>  
>  out:

Looks good to me. Nice cleanup.

Reviewed-by: Jeff Layton <[email protected]>
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