diff mbox

[v5,5/9] vfs: Copy shouldn't forbid ranges inside the same file

Message ID 1443634014-3026-6-git-send-email-Anna.Schumaker@Netapp.com (mailing list archive)
State New, archived
Headers show

Commit Message

Schumaker, Anna Sept. 30, 2015, 5:26 p.m. UTC 
This is perfectly valid for BTRFS and XFS, so let's leave this up to
filesystems to check.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 fs/read_write.c | 4 ----
 1 file changed, 4 deletions(-)

Comments

Christoph Hellwig Oct. 11, 2015, 2:22 p.m. UTC | #1 
Needs to be folded.
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Schumaker, Anna Oct. 14, 2015, 5:37 p.m. UTC | #2 
I would have folded this and patch 4 earlier if I had written patch 1, but I didn't feel comfortable modifying Zach's work too much.  I can make that change if it's not really a problem.

Anna

On 10/11/2015 10:22 AM, Christoph Hellwig wrote:
> Needs to be folded.
> 

--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Christoph Hellwig Oct. 14, 2015, 6:25 p.m. UTC | #3 
On Wed, Oct 14, 2015 at 01:37:13PM -0400, Anna Schumaker wrote:
> I would have folded this and patch 4 earlier if I had written patch 1,
> but I didn't feel comfortable modifying Zach's work too much.  I can
> make that change if it's not really a problem.

Folding the changes is perfectly fine, just make it clear you changed
it, e.g.

Signed-off-by: Original Author <original@auhor.info>
[anna: fixed foo & bar, rewrote changelog]
Signed-off-by: Anna Schumaker <Anna.Schumaker@netapp.com>
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Schumaker, Anna Oct. 14, 2015, 6:27 p.m. UTC | #4 
On 10/14/2015 02:25 PM, Christoph Hellwig wrote:
> On Wed, Oct 14, 2015 at 01:37:13PM -0400, Anna Schumaker wrote:
>> I would have folded this and patch 4 earlier if I had written patch 1,
>> but I didn't feel comfortable modifying Zach's work too much.  I can
>> make that change if it's not really a problem.
> 
> Folding the changes is perfectly fine, just make it clear you changed
> it, e.g.
> 
> Signed-off-by: Original Author <original@auhor.info>
> [anna: fixed foo & bar, rewrote changelog]
> Signed-off-by: Anna Schumaker <Anna.Schumaker@netapp.com>
> 

Okay, I'll do that.  Thanks!

Anna
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/fs/read_write.c b/fs/read_write.c
index f3d6c48..8e7cb33 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -1371,10 +1371,6 @@  ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in,
 	    file_in->f_path.mnt != file_out->f_path.mnt)
 		return -EXDEV;
 
-	/* forbid ranges in the same file */
-	if (inode_in == inode_out)
-		return -EINVAL;
-
 	if (len == 0)
 		return 0;