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authorPaolo Bonzini <pbonzini@redhat.com>2022-05-20 07:16:27 -0400
committerPaolo Bonzini <pbonzini@redhat.com>2022-05-25 05:09:23 -0400
commit47e8eec83262083c7da220446551eaad614218ea (patch)
tree1bcdf6cb6541441d1042fdf68c2f7982d80a9178 /fs/btrfs/dev-replace.c
parent825be3b5abae1e67db45ff7d4b9a7764a2419bd9 (diff)
parent5c0ad551e9aa6188f2bda0977c1cb6768a2b74ef (diff)
Merge tag 'kvmarm-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 updates for 5.19 - Add support for the ARMv8.6 WFxT extension - Guard pages for the EL2 stacks - Trap and emulate AArch32 ID registers to hide unsupported features - Ability to select and save/restore the set of hypercalls exposed to the guest - Support for PSCI-initiated suspend in collaboration with userspace - GICv3 register-based LPI invalidation support - Move host PMU event merging into the vcpu data structure - GICv3 ITS save/restore fixes - The usual set of small-scale cleanups and fixes [Due to the conflict, KVM_SYSTEM_EVENT_SEV_TERM is relocated from 4 to 6. - Paolo]
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);