tree a1df1766525168a19ffb7e90190ce709413187a6
parent 6596910c2f512604bed634c25553c09ea6603721
author Darrick J. Wong <darrick.wong@oracle.com> 1593467238 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1598000521 +0200

xfs: fix reflink quota reservation accounting error

[ Upstream commit 83895227aba1ade33e81f586aa7b6b1e143096a5 ]

Quota reservations are supposed to account for the blocks that might be
allocated due to a bmap btree split.  Reflink doesn't do this, so fix
this to make the quota accounting more accurate before we start
rearranging things.

Fixes: 862bb360ef56 ("xfs: reflink extents from one file to another")
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>