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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-05-02 13:49:24 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-05-02 13:49:24 +0200
commit35a7609639c49f76f13f206402cbf692c4ae3e4e (patch)
tree55c8cf59f8bac0754eff06a3f102d2d819dc39ed /fs/btrfs/dev-replace.c
parente918c10265ef2bc82ce8a6fed6d8123d09ec1db3 (diff)
parent672c0c5173427e6b3e2a9bbb7be51ceeec78093a (diff)
Merge 5.18-rc5 into char-misc-next
We need the char-misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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);