From: "Theodore Y. Ts'o" <tytso@mit.edu>
To: Ritesh Harjani <riteshh@linux.ibm.com>
Cc: Matthew Wilcox <willy@infradead.org>,
linux-ext4@vger.kernel.org, jack@suse.cz,
adilger.kernel@dilger.ca, linux-fsdevel@vger.kernel.org,
darrick.wong@oracle.com, hch@infradead.org, cmaiolino@redhat.com,
david@fromorbit.com
Subject: Re: [PATCHv5 6/6] Documentation: Correct the description of FIEMAP_EXTENT_LAST
Date: Fri, 13 Mar 2020 23:48:59 -0400 [thread overview]
Message-ID: <20200314034859.GM225435@mit.edu> (raw)
In-Reply-To: <20200302081007.8B710A4070@d06av23.portsmouth.uk.ibm.com>
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@linux.ibm.com>
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@linux.ibm.com>
Link: https://lore.kernel.org/r/5a00e8d4283d6849e0b8f408c8365b31fbc1d153.1582880246.git.riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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
prev parent reply other threads:[~2020-03-14 3:49 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-28 9:26 [PATCHv5 0/6] ext4: bmap & fiemap conversion to use iomap Ritesh Harjani
2020-02-28 9:26 ` [PATCHv5 1/6] ext4: Add IOMAP_F_MERGED for non-extent based mapping Ritesh Harjani
2020-02-28 15:26 ` Darrick J. Wong
2020-03-13 19:52 ` Theodore Y. Ts'o
2020-02-28 9:26 ` [PATCHv5 2/6] ext4: Optimize ext4_ext_precache for 0 depth Ritesh Harjani
2020-03-13 20:05 ` Theodore Y. Ts'o
2020-02-28 9:26 ` [PATCHv5 3/6] ext4: Move ext4 bmap to use iomap infrastructure Ritesh Harjani
2020-02-28 15:25 ` Darrick J. Wong
2020-03-02 8:58 ` Ritesh Harjani
2020-03-03 15:47 ` Darrick J. Wong
2020-03-04 12:42 ` Jan Kara
2020-03-04 15:37 ` Darrick J. Wong
2020-03-07 2:32 ` Theodore Y. Ts'o
2020-03-06 17:49 ` Ritesh Harjani
2020-03-07 0:51 ` Darrick J. Wong
2020-03-07 5:50 ` Ritesh Harjani
2020-03-13 20:16 ` Theodore Y. Ts'o
2020-02-28 9:26 ` [PATCHv5 4/6] ext4: Make ext4_ind_map_blocks work with fiemap Ritesh Harjani
2020-03-13 20:18 ` Theodore Y. Ts'o
2020-02-28 9:26 ` [PATCHv5 5/6] ext4: Move ext4_fiemap to use iomap framework Ritesh Harjani
2020-02-28 15:21 ` Darrick J. Wong
2020-03-14 3:03 ` Theodore Y. Ts'o
2020-02-28 9:26 ` [PATCHv5 6/6] Documentation: Correct the description of FIEMAP_EXTENT_LAST Ritesh Harjani
2020-02-28 15:20 ` Darrick J. Wong
2020-02-28 15:36 ` Matthew Wilcox
2020-03-02 8:10 ` Ritesh Harjani
2020-03-14 3:48 ` Theodore Y. Ts'o [this message]
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