Messages in this thread Patch in this message | | | From | Naohiro Aota <> | Subject | [RFC PATCH 11/12] btrfs-progs: replace: disable in HMZONED device | Date | Fri, 10 Aug 2018 03:11:04 +0900 |
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As show in the kernel patches, device replace feature needs more works to complete. Disable the feature for now.
Signed-off-by: Naohiro Aota <naota@elisp.net> --- cmds-replace.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
diff --git a/cmds-replace.c b/cmds-replace.c index 1fa80284..642fbd4b 100644 --- a/cmds-replace.c +++ b/cmds-replace.c @@ -116,6 +116,7 @@ static const char *const cmd_replace_start_usage[] = { static int cmd_replace_start(int argc, char **argv) { + struct btrfs_ioctl_feature_flags feature_flags; struct btrfs_ioctl_dev_replace_args start_args = {0}; struct btrfs_ioctl_dev_replace_args status_args = {0}; int ret; @@ -123,6 +124,7 @@ static int cmd_replace_start(int argc, char **argv) int c; int fdmnt = -1; int fddstdev = -1; + int hmzoned; char *path; char *srcdev; char *dstdev = NULL; @@ -200,6 +202,13 @@ static int cmd_replace_start(int argc, char **argv) goto leave_with_error; } + ret = ioctl(fdmnt, BTRFS_IOC_GET_FEATURES, &feature_flags); + if (ret) { + error("error getting feature flags '%s': %m", path); + return 1; + } + hmzoned = feature_flags.incompat_flags & BTRFS_FEATURE_INCOMPAT_HMZONED; + if (string_is_numerical(srcdev)) { struct btrfs_ioctl_fs_info_args fi_args; struct btrfs_ioctl_dev_info_args *di_args = NULL; @@ -238,6 +247,12 @@ static int cmd_replace_start(int argc, char **argv) goto leave_with_error; } + if (hmzoned) { + error("cannot replace device on HMZONED file system '%s'", + dstdev); + goto leave_with_error; + } + ret = test_dev_for_mkfs(dstdev, force_using_targetdev); if (ret) goto leave_with_error; -- 2.18.0
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