http://bugzilla.suse.com/show_bug.cgi?id=1025052 Bug ID: 1025052 Summary: [PATCH] btrfs: allow dedupe of same inode Classification: openSUSE Product: openSUSE Distribution Version: Leap 42.1 Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: jeffm@suse.com Reporter: jeffm@suse.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: ---

From 0efa9f48c7e6c15e75946dd2b1c82d3d19e13545 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Tue, 30 Jun 2015 14:42:07 -0700 Subject: [PATCH] btrfs: allow dedupe of same inode Patch-mainline: v4.2 Git-commit: 0efa9f48c7e6c15e75946dd2b1c82d3d19e13545 References: SLE12-SP1 commit d5b3732e107

clone() supports cloning within an inode so extent-same can do the same now. This patch fixes up the locking in extent-same to know about the single-inode case. In addition to that, we add a check for overlapping ranges, which clone does not allow. Signed-off-by: Mark Fasheh Reviewed-by: David Sterba Signed-off-by: Chris Mason --- fs/btrfs/ioctl.c | 78 +++++++++++++++++++++++++++++++++++++++++++------------ 1 file changed, 61 insertions(+), 17 deletions(-) -- You are receiving this mail because: You are on the CC list for the bug.