This is a note to let you know that I've just added the patch titled
xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
xfs-map-unwritten-blocks-in-xfs_ioc_-alloc-free-sp-just-like-fallocate.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 983d8e60f50806f90534cc5373d0ce867e5aaf79 Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <djwong@xxxxxxxxxx>
Date: Wed, 22 Dec 2021 14:19:18 -0800
Subject: xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate
From: Darrick J. Wong <djwong@xxxxxxxxxx>
commit 983d8e60f50806f90534cc5373d0ce867e5aaf79 upstream.
The old ALLOCSP/FREESP ioctls in XFS can be used to preallocate space at
the end of files, just like fallocate and RESVSP. Make the behavior
consistent with the other ioctls.
Reported-by: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Reviewed-by: Eric Sandeen <sandeen@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/xfs/xfs_ioctl.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -687,7 +687,8 @@ xfs_ioc_space(
if (bf->l_start > XFS_ISIZE(ip)) {
error = xfs_alloc_file_space(ip, XFS_ISIZE(ip),
- bf->l_start - XFS_ISIZE(ip), 0);
+ bf->l_start - XFS_ISIZE(ip),
+ XFS_BMAPI_PREALLOC);
if (error)
goto out_unlock;
}
Patches currently in stable-queue which might be from djwong@xxxxxxxxxx are
queue-5.15/xfs-map-unwritten-blocks-in-xfs_ioc_-alloc-free-sp-just-like-fallocate.patch
