Re: [PATCHv5 6/6] Documentation: Correct the description of FIEMAP_EXTENT_LAST

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On Mon, Mar 02, 2020 at 01:40:06PM +0530, Ritesh Harjani wrote:
> 
> Thanks for the review.
> Will make the suggested changes and send a v6.

I didn't see a v6, so I revised this patch to read:

commit 499800830ae5d44ae29f69c98ab9893f0425cb51
Author: Ritesh Harjani <riteshh@xxxxxxxxxxxxx>
Date:   Fri Feb 28 14:56:59 2020 +0530

    Documentation: correct the description of FIEMAP_EXTENT_LAST
    
    Currently FIEMAP_EXTENT_LAST is not working consistently across
    different filesystem's fiemap implementations. So add more information
    about how else this flag could set in other implementation.
    
    Signed-off-by: Ritesh Harjani <riteshh@xxxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/5a00e8d4283d6849e0b8f408c8365b31fbc1d153.1582880246.git.riteshh@xxxxxxxxxxxxx
    Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>

diff --git a/Documentation/filesystems/fiemap.txt b/Documentation/filesystems/fiemap.txt
index f6d9c99103a4..ac87e6fda842 100644
--- a/Documentation/filesystems/fiemap.txt
+++ b/Documentation/filesystems/fiemap.txt
@@ -115,8 +115,10 @@ data. Note that the opposite is not true - it would be valid for
 FIEMAP_EXTENT_NOT_ALIGNED to appear alone.
 
 * FIEMAP_EXTENT_LAST
-This is the last extent in the file. A mapping attempt past this
-extent will return nothing.
+This is generally the last extent in the file. A mapping attempt past
+this extent may return nothing. Some implementations set this flag to
+indicate this extent is the last one in the range queried by the user
+(via fiemap->fm_length).
 
 * FIEMAP_EXTENT_UNKNOWN
 The location of this extent is currently unknown. This may indicate

     	      	      	     		  	   - Ted



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