> On Jul 22, 2016, at 01:43, Phil Turnbull <[email protected]> wrote:
> 
> ceph_llseek does not correctly return NXIO errors because the 'out' path
> always returns 'offset'.
> 
> Fixes: 06222e491e66 ("fs: handle SEEK_HOLE/SEEK_DATA properly in all fs's 
> that define their own llseek")
> Signed-off-by: Phil Turnbull <[email protected]>
> ---
> fs/ceph/file.c | 12 +++++-------
> 1 file changed, 5 insertions(+), 7 deletions(-)
> 
> diff --git a/fs/ceph/file.c b/fs/ceph/file.c
> index ce2f5795e44b..13adb5b2ef29 100644
> --- a/fs/ceph/file.c
> +++ b/fs/ceph/file.c
> @@ -1448,16 +1448,14 @@ static loff_t ceph_llseek(struct file *file, loff_t 
> offset, int whence)
> {
>       struct inode *inode = file->f_mapping->host;
>       loff_t i_size;
> -     int ret;
> +     loff_t ret;
> 
>       inode_lock(inode);
> 
>       if (whence == SEEK_END || whence == SEEK_DATA || whence == SEEK_HOLE) {
>               ret = ceph_do_getattr(inode, CEPH_STAT_CAP_SIZE, false);
> -             if (ret < 0) {
> -                     offset = ret;
> +             if (ret < 0)
>                       goto out;
> -             }
>       }
> 
>       i_size = i_size_read(inode);
> @@ -1473,7 +1471,7 @@ static loff_t ceph_llseek(struct file *file, loff_t 
> offset, int whence)
>                * write() or lseek() might have altered it
>                */
>               if (offset == 0) {
> -                     offset = file->f_pos;
> +                     ret = file->f_pos;
>                       goto out;
>               }
>               offset += file->f_pos;
> @@ -1493,11 +1491,11 @@ static loff_t ceph_llseek(struct file *file, loff_t 
> offset, int whence)
>               break;
>       }
> 
> -     offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes);
> +     ret = vfs_setpos(file, offset, inode->i_sb->s_maxbytes);
> 
> out:
>       inode_unlock(inode);
> -     return offset;
> +     return ret;
> }
> 
> static inline void ceph_zero_partial_page(

applied, thanks

Yan, Zheng

> -- 
> 2.9.0.rc2
> 

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