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authorMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2022-05-11 20:22:22 +0200
committerMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2022-05-11 20:22:22 +0200
commitb7c15a3ce6fea5da3aa836c897a78ac628467d54 (patch)
tree0e941036165a7d6261e77a756693f5d0b13bbbe4 /fs/btrfs/dev-replace.c
parentef3a6b70507a2add2cd2e01f5eb9b54d561bacb9 (diff)
parentc5eb0a61238dd6faf37f58c9ce61c9980aaffd7a (diff)
Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes
Requested by Zack for vmwgfx fixes. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'fs/btrfs/dev-replace.c')
-rw-r--r--fs/btrfs/dev-replace.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 71fd99b48283..f26202621989 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -734,7 +734,12 @@ static int btrfs_dev_replace_start(struct btrfs_fs_info *fs_info,
btrfs_wait_ordered_roots(fs_info, U64_MAX, 0, (u64)-1);
- /* Commit dev_replace state and reserve 1 item for it. */
+ /*
+ * Commit dev_replace state and reserve 1 item for it.
+ * This is crucial to ensure we won't miss copying extents for new block
+ * groups that are allocated after we started the device replace, and
+ * must be done after setting up the device replace state.
+ */
trans = btrfs_start_transaction(root, 1);
if (IS_ERR(trans)) {
ret = PTR_ERR(trans);