From 7af44c42df37094fd95897653fdaaa7b76c0539a Mon Sep 17 00:00:00 2001 From: Ritesh Harjani Date: Fri, 28 Feb 2020 14:56:59 +0530 Subject: [PATCH] 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 Link: https://lore.kernel.org/r/5a00e8d4283d6849e0b8f408c8365b31fbc1d153.1582880246.git.riteshh@linux.ibm.com Signed-off-by: Theodore Ts'o --- Documentation/filesystems/fiemap.txt | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) 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