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From: David Sterba <dsterba@suse.com>
To: linux-btrfs@vger.kernel.org
Cc: David Sterba <dsterba@suse.com>, anand.jain@oracle.com
Subject: [PATCH 12/15] btrfs: indtroduce raid-type to error-code table, for minimum device constraint
Date: Mon, 15 Feb 2016 18:34:36 +0100	[thread overview]
Message-ID: <d05a46053f82b1b716cad4178c91242ed515b166.1455556900.git.dsterba@suse.com> (raw)
In-Reply-To: <cover.1455556900.git.dsterba@suse.com>

Signed-off-by: David Sterba <dsterba@suse.com>
---
 fs/btrfs/volumes.c | 15 +++++++++++++++
 fs/btrfs/volumes.h |  2 +-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index ae94e06f3e61..a67249582a6f 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -118,6 +118,21 @@ const u64 btrfs_raid_group[BTRFS_NR_RAID_TYPES] = {
 	[BTRFS_RAID_RAID6]  = BTRFS_BLOCK_GROUP_RAID6,
 };
 
+/*
+ * Table to convert BTRFS_RAID_* to the error code if minimum number of devices
+ * condition is not met. Zero means there's no corresponding
+ * BTRFS_ERROR_DEV_*_NOT_MET value.
+ */
+const int btrfs_raid_mindev_error[BTRFS_NR_RAID_TYPES] = {
+	[BTRFS_RAID_RAID10] = BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET,
+	[BTRFS_RAID_RAID1]  = BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET,
+	[BTRFS_RAID_DUP]    = 0,
+	[BTRFS_RAID_RAID0]  = 0,
+	[BTRFS_RAID_SINGLE] = 0,
+	[BTRFS_RAID_RAID5]  = BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET,
+	[BTRFS_RAID_RAID6]  = BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET,
+};
+
 static int init_first_rw_device(struct btrfs_trans_handle *trans,
 				struct btrfs_root *root,
 				struct btrfs_device *device);
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index c73d027e2f8b..a13a538cb01e 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -340,7 +340,7 @@ struct btrfs_raid_attr {
 };
 
 extern const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES];
-
+extern const int btrfs_raid_mindev_error[BTRFS_NR_RAID_TYPES];
 extern const u64 btrfs_raid_group[BTRFS_NR_RAID_TYPES];
 
 struct map_lookup {
-- 
2.7.1


  parent reply	other threads:[~2016-02-15 17:34 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-15 17:33 [PATCH 00/15] Device delete by id David Sterba
2016-02-15 17:33 ` [PATCH 01/15] btrfs: create a helper function to read the disk super David Sterba
2016-02-15 17:34 ` [PATCH 02/15] btrfs: create helper function __check_raid_min_devices() David Sterba
2016-02-15 17:34 ` [PATCH 03/15] btrfs: clean up and optimize __check_raid_min_device() David Sterba
2016-02-15 17:34 ` [PATCH 04/15] btrfs: create helper btrfs_find_device_by_user_input() David Sterba
2016-02-15 17:34 ` [PATCH 05/15] btrfs: make use of btrfs_find_device_by_user_input() David Sterba
2016-02-15 17:34 ` [PATCH 06/15] btrfs: enhance btrfs_find_device_by_user_input() to check device path David Sterba
2016-02-15 17:34 ` [PATCH 07/15] btrfs: make use of btrfs_scratch_superblocks() in btrfs_rm_device() David Sterba
2016-02-15 17:34 ` [PATCH 08/15] btrfs: introduce device delete by devid David Sterba
2016-02-15 17:34 ` [PATCH 09/15] btrfs: optimize check for stale device David Sterba
2016-02-15 17:34 ` [PATCH 10/15] btrfs: rename __check_raid_min_devices David Sterba
2016-02-16  9:07   ` Anand Jain
2016-02-15 17:34 ` [PATCH 11/15] btrfs: pass number of devices to btrfs_check_raid_min_devices David Sterba
2016-02-16  9:08   ` Anand Jain
2016-02-15 17:34 ` David Sterba [this message]
2016-02-16  9:09   ` [PATCH 12/15] btrfs: indtroduce raid-type to error-code table, for minimum device constraint Anand Jain
2016-02-15 17:34 ` [PATCH 13/15] btrfs: use existing device constraints table btrfs_raid_array David Sterba
2016-02-16  9:13   ` Anand Jain
2016-02-15 17:34 ` [PATCH 14/15] btrfs: rename btrfs_find_device_by_user_input David Sterba
2016-02-16  9:14   ` Anand Jain
2016-02-15 17:34 ` [PATCH 15/15] btrfs: rename flags for vol args v2 David Sterba
2016-02-16  9:18   ` Anand Jain
2016-02-16  9:43     ` David Sterba
2016-02-25 17:59 ` [PATCH 00/15] Device delete by id David Sterba
2016-03-11  8:16   ` Anand Jain

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