dm thin: display 'needs_check' in status if it is set (e4c78e21) · Commits · 戴 / test

Documentation/device-mapper/thin-provisioning.txt

+8 −1

Original line number	Diff line number	Diff line
		@@ -296,7 +296,7 @@ ii) Status
		underlying device. When this is enabled when loading the table,
		it can get disabled if the underlying device doesn't support it.

		ro\|rw
		ro\|rw\|out_of_data_space
		If the pool encounters certain types of device failures it will
		drop into a read-only metadata mode in which no changes to
		the pool metadata (like allocating new blocks) are permitted.
		@@ -314,6 +314,13 @@ ii) Status
		module parameter can be used to change this timeout -- it
		defaults to 60 seconds but may be disabled using a value of 0.

		needs_check
		A metadata operation has failed, resulting in the needs_check
		flag being set in the metadata's superblock. The metadata
		device must be deactivated and checked/repaired before the
		thin-pool can be made fully operational again. '-' indicates
		needs_check is not set.

		iii) Messages

		create_thin <dev id>

+8 −2

Original line number	Diff line number	Diff line
		@@ -3738,6 +3738,7 @@ static void emit_flags(struct pool_features pf, char result,
		* Status line is:
		* <transaction id> <used metadata sectors>/<total metadata sectors>
		* <used data sectors>/<total data sectors> <held metadata root>
		* <pool mode> <discard config> <no space config> <needs_check>
		*/
		static void pool_status(struct dm_target *ti, status_type_t type,
		unsigned status_flags, char *result, unsigned maxlen)
		@@ -3839,6 +3840,11 @@ static void pool_status(struct dm_target *ti, status_type_t type,
		else
		DMEMIT("queue_if_no_space ");

		if (dm_pool_metadata_needs_check(pool->pmd))
		DMEMIT("needs_check ");
		else
		DMEMIT("- ");

		break;

		case STATUSTYPE_TABLE:
		@@ -3942,7 +3948,7 @@ static struct target_type pool_target = {
		.name = "thin-pool",
		.features = DM_TARGET_SINGLETON \| DM_TARGET_ALWAYS_WRITEABLE \|
		DM_TARGET_IMMUTABLE,
		.version = {1, 15, 0},
		.version = {1, 16, 0},
		.module = THIS_MODULE,
		.ctr = pool_ctr,
		.dtr = pool_dtr,
		@@ -4329,7 +4335,7 @@ static void thin_io_hints(struct dm_target ti, struct queue_limits limits)

		static struct target_type thin_target = {
		.name = "thin",
		.version = {1, 15, 0},
		.version = {1, 16, 0},
		.module = THIS_MODULE,
		.ctr = thin_ctr,
		.dtr = thin_dtr,