On Mon, 29 Nov 2010 16:36:43 +0300
Pavel Shilovsky <[email protected]> wrote:

> Remove filemap_write_and_wait call because it is previously called from
> vfs_fsync_range and invalidate inode if we don't have at least Level II
> oplock and strcit cache mode switched on.
> 
> Signed-off-by: Pavel Shilovsky <[email protected]>
> ---
>  fs/cifs/cifsfs.h |    1 +
>  fs/cifs/file.c   |   14 +++++++-------
>  fs/cifs/inode.c  |    2 +-
>  3 files changed, 9 insertions(+), 8 deletions(-)
> 
> diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
> index 897b2b2..b8d783c 100644
> --- a/fs/cifs/cifsfs.h
> +++ b/fs/cifs/cifsfs.h
> @@ -61,6 +61,7 @@ extern int cifs_rename(struct inode *, struct dentry *, 
> struct inode *,
>                      struct dentry *);
>  extern int cifs_revalidate_file(struct file *filp);
>  extern int cifs_revalidate_dentry(struct dentry *);
> +extern void cifs_invalidate_mapping(struct inode *inode);
>  extern int cifs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
>  extern int cifs_setattr(struct dentry *, struct iattr *);
>  
> diff --git a/fs/cifs/file.c b/fs/cifs/file.c
> index f853bf0..d216879 100644
> --- a/fs/cifs/file.c
> +++ b/fs/cifs/file.c
> @@ -1595,20 +1595,20 @@ int cifs_fsync(struct file *file, int datasync)
>       struct cifsTconInfo *tcon;
>       struct cifsFileInfo *smbfile = file->private_data;
>       struct inode *inode = file->f_path.dentry->d_inode;
> +     struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
>  
>       xid = GetXid();
>  
>       cFYI(1, "Sync file - name: %s datasync: 0x%x",
>               file->f_path.dentry->d_name.name, datasync);
>  
> -     rc = filemap_write_and_wait(inode->i_mapping);
> -     if (rc == 0) {
> -             struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
> +     if (!CIFS_I(inode)->clientCanCacheRead &&
> +         (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO))
> +             cifs_invalidate_mapping(inode);
>  
> -             tcon = tlink_tcon(smbfile->tlink);
> -             if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC))
> -                     rc = CIFSSMBFlush(xid, tcon, smbfile->netfid);
> -     }
> +     tcon = tlink_tcon(smbfile->tlink);
> +     if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC))
> +             rc = CIFSSMBFlush(xid, tcon, smbfile->netfid);
>  
>       FreeXid(xid);
>       return rc;
> diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
> index ff7d299..f90a40a 100644
> --- a/fs/cifs/inode.c
> +++ b/fs/cifs/inode.c
> @@ -1671,7 +1671,7 @@ cifs_inode_needs_reval(struct inode *inode)
>  }
>  
>  /* check invalid_mapping flag and zap the cache if it's set */
> -static void
> +void
>  cifs_invalidate_mapping(struct inode *inode)
>  {
>       int rc;

Looks reasonable, but I'll withhold the reviewed-by until the previous
patches are fixed.

-- 
Jeff Layton <[email protected]>
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