diff mbox

[v2,1/3] btrfs: balance: prefix kernel logs

Message ID 20180516025128.9899-2-anand.jain@oracle.com (mailing list archive)
State New, archived
Headers show

Commit Message

Anand Jain May 16, 2018, 2:51 a.m. UTC
Kernel logs are very important for the forensic investigations of the
issues in general make it easy to use it. This patch adds 'balance:'
prefix so that it can be easily searched.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
v1-v2: Change log update.
 fs/btrfs/volumes.c | 34 ++++++++++++++++++++--------------
 1 file changed, 20 insertions(+), 14 deletions(-)

Comments

Nikolay Borisov May 16, 2018, 7:46 a.m. UTC | #1
On 16.05.2018 05:51, Anand Jain wrote:
> Kernel logs are very important for the forensic investigations of the
> issues in general make it easy to use it. This patch adds 'balance:'
> prefix so that it can be easily searched.
> 
> Signed-off-by: Anand Jain <anand.jain@oracle.com>

Straightforward:

Reviewed-by: Nikolay Borisov <nborisov@suse.com>

> ---
> v1-v2: Change log update.
>  fs/btrfs/volumes.c | 34 ++++++++++++++++++++--------------
>  1 file changed, 20 insertions(+), 14 deletions(-)
> 
> diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
> index 9773bc143650..27da66c47ef2 100644
> --- a/fs/btrfs/volumes.c
> +++ b/fs/btrfs/volumes.c
> @@ -3801,7 +3801,7 @@ int btrfs_balance(struct btrfs_fs_info *fs_info,
>  		    !(bctl->flags & BTRFS_BALANCE_METADATA) ||
>  		    memcmp(&bctl->data, &bctl->meta, sizeof(bctl->data))) {
>  			btrfs_err(fs_info,
> -				  "with mixed groups data and metadata balance options must be the same");
> +				  "balance: mixed groups data and metadata options must be the same");
>  			ret = -EINVAL;
>  			goto out;
>  		}
> @@ -3823,23 +3823,26 @@ int btrfs_balance(struct btrfs_fs_info *fs_info,
>  		allowed |= (BTRFS_BLOCK_GROUP_RAID10 |
>  			    BTRFS_BLOCK_GROUP_RAID6);
>  	if (validate_convert_profile(&bctl->data, allowed)) {
> +		int index = btrfs_bg_flags_to_raid_index(bctl->data.target);
>  		btrfs_err(fs_info,
> -			  "unable to start balance with target data profile %llu",
> -			  bctl->data.target);
> +			  "balance: invalid convert data profile %s",
> +			  get_raid_name(index));
>  		ret = -EINVAL;
>  		goto out;
>  	}
>  	if (validate_convert_profile(&bctl->meta, allowed)) {
> +		int index = btrfs_bg_flags_to_raid_index(bctl->meta.target);
>  		btrfs_err(fs_info,
> -			  "unable to start balance with target metadata profile %llu",
> -			  bctl->meta.target);
> +			  "balance: invalid convert metadata profile %s",
> +			  get_raid_name(index));
>  		ret = -EINVAL;
>  		goto out;
>  	}
>  	if (validate_convert_profile(&bctl->sys, allowed)) {
> +		int index = btrfs_bg_flags_to_raid_index(bctl->sys.target);
>  		btrfs_err(fs_info,
> -			  "unable to start balance with target system profile %llu",
> -			  bctl->sys.target);
> +			  "balance: invalid convert system profile %s",
> +			  get_raid_name(index));
>  		ret = -EINVAL;
>  		goto out;
>  	}
> @@ -3860,10 +3863,10 @@ int btrfs_balance(struct btrfs_fs_info *fs_info,
>  		     !(bctl->meta.target & allowed))) {
>  			if (bctl->flags & BTRFS_BALANCE_FORCE) {
>  				btrfs_info(fs_info,
> -					   "force reducing metadata integrity");
> +					   "balance: force reducing metadata integrity");
>  			} else {
>  				btrfs_err(fs_info,
> -					  "balance will reduce metadata integrity, use force if you want this");
> +					  "balance: reduces metadata integrity, use force if you want this");
>  				ret = -EINVAL;
>  				goto out;
>  			}
> @@ -3877,9 +3880,11 @@ int btrfs_balance(struct btrfs_fs_info *fs_info,
>  		bctl->data.target : fs_info->avail_data_alloc_bits;
>  	if (btrfs_get_num_tolerated_disk_barrier_failures(meta_target) <
>  		btrfs_get_num_tolerated_disk_barrier_failures(data_target)) {
> +		int meta_index = btrfs_bg_flags_to_raid_index(meta_target);
> +		int data_index = btrfs_bg_flags_to_raid_index(data_target);
>  		btrfs_warn(fs_info,
> -			   "metadata profile 0x%llx has lower redundancy than data profile 0x%llx",
> -			   meta_target, data_target);
> +			   "balance: metadata profile %s has lower redundancy than data profile %s",
> +			   get_raid_name(meta_index), get_raid_name(data_index));
>  	}
>  
>  	ret = insert_balance_item(fs_info, bctl);
> @@ -3939,7 +3944,7 @@ static int balance_kthread(void *data)
>  
>  	mutex_lock(&fs_info->balance_mutex);
>  	if (fs_info->balance_ctl) {
> -		btrfs_info(fs_info, "continuing balance");
> +		btrfs_info(fs_info, "balance: resuming");
>  		ret = btrfs_balance(fs_info, fs_info->balance_ctl, NULL);
>  	}
>  	mutex_unlock(&fs_info->balance_mutex);
> @@ -3959,7 +3964,7 @@ int btrfs_resume_balance_async(struct btrfs_fs_info *fs_info)
>  	mutex_unlock(&fs_info->balance_mutex);
>  
>  	if (btrfs_test_opt(fs_info, SKIP_BALANCE)) {
> -		btrfs_info(fs_info, "force skipping balance");
> +		btrfs_info(fs_info, "balance: resume skipped");
>  		return 0;
>  	}
>  
> @@ -4024,7 +4029,7 @@ int btrfs_recover_balance(struct btrfs_fs_info *fs_info)
>  	 */
>  	if (test_and_set_bit(BTRFS_FS_EXCL_OP, &fs_info->flags))
>  		btrfs_warn(fs_info,
> -	"cannot set exclusive op status to balance, resume manually");
> +	"balance: cannot set exclusive op status, resume manually");
>  
>  	mutex_lock(&fs_info->balance_mutex);
>  	BUG_ON(fs_info->balance_ctl);
> @@ -4105,6 +4110,7 @@ int btrfs_cancel_balance(struct btrfs_fs_info *fs_info)
>  		if (fs_info->balance_ctl) {
>  			reset_balance_state(fs_info);
>  			clear_bit(BTRFS_FS_EXCL_OP, &fs_info->flags);
> +			btrfs_info(fs_info, "balance: canceled");
>  		}
>  	}
>  
> 
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David Sterba May 17, 2018, 12:04 p.m. UTC | #2
On Wed, May 16, 2018 at 10:51:26AM +0800, Anand Jain wrote:
> Kernel logs are very important for the forensic investigations of the
> issues in general make it easy to use it. This patch adds 'balance:'
> prefix so that it can be easily searched.
> 
> Signed-off-by: Anand Jain <anand.jain@oracle.com>

Added to next, thanks. Please stick to the coding style and add an empty
newlines between declarations and statements and un-indent long printk
strings so they fit 80 columns. I've fixed that for now.
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diff mbox

Patch

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 9773bc143650..27da66c47ef2 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -3801,7 +3801,7 @@  int btrfs_balance(struct btrfs_fs_info *fs_info,
 		    !(bctl->flags & BTRFS_BALANCE_METADATA) ||
 		    memcmp(&bctl->data, &bctl->meta, sizeof(bctl->data))) {
 			btrfs_err(fs_info,
-				  "with mixed groups data and metadata balance options must be the same");
+				  "balance: mixed groups data and metadata options must be the same");
 			ret = -EINVAL;
 			goto out;
 		}
@@ -3823,23 +3823,26 @@  int btrfs_balance(struct btrfs_fs_info *fs_info,
 		allowed |= (BTRFS_BLOCK_GROUP_RAID10 |
 			    BTRFS_BLOCK_GROUP_RAID6);
 	if (validate_convert_profile(&bctl->data, allowed)) {
+		int index = btrfs_bg_flags_to_raid_index(bctl->data.target);
 		btrfs_err(fs_info,
-			  "unable to start balance with target data profile %llu",
-			  bctl->data.target);
+			  "balance: invalid convert data profile %s",
+			  get_raid_name(index));
 		ret = -EINVAL;
 		goto out;
 	}
 	if (validate_convert_profile(&bctl->meta, allowed)) {
+		int index = btrfs_bg_flags_to_raid_index(bctl->meta.target);
 		btrfs_err(fs_info,
-			  "unable to start balance with target metadata profile %llu",
-			  bctl->meta.target);
+			  "balance: invalid convert metadata profile %s",
+			  get_raid_name(index));
 		ret = -EINVAL;
 		goto out;
 	}
 	if (validate_convert_profile(&bctl->sys, allowed)) {
+		int index = btrfs_bg_flags_to_raid_index(bctl->sys.target);
 		btrfs_err(fs_info,
-			  "unable to start balance with target system profile %llu",
-			  bctl->sys.target);
+			  "balance: invalid convert system profile %s",
+			  get_raid_name(index));
 		ret = -EINVAL;
 		goto out;
 	}
@@ -3860,10 +3863,10 @@  int btrfs_balance(struct btrfs_fs_info *fs_info,
 		     !(bctl->meta.target & allowed))) {
 			if (bctl->flags & BTRFS_BALANCE_FORCE) {
 				btrfs_info(fs_info,
-					   "force reducing metadata integrity");
+					   "balance: force reducing metadata integrity");
 			} else {
 				btrfs_err(fs_info,
-					  "balance will reduce metadata integrity, use force if you want this");
+					  "balance: reduces metadata integrity, use force if you want this");
 				ret = -EINVAL;
 				goto out;
 			}
@@ -3877,9 +3880,11 @@  int btrfs_balance(struct btrfs_fs_info *fs_info,
 		bctl->data.target : fs_info->avail_data_alloc_bits;
 	if (btrfs_get_num_tolerated_disk_barrier_failures(meta_target) <
 		btrfs_get_num_tolerated_disk_barrier_failures(data_target)) {
+		int meta_index = btrfs_bg_flags_to_raid_index(meta_target);
+		int data_index = btrfs_bg_flags_to_raid_index(data_target);
 		btrfs_warn(fs_info,
-			   "metadata profile 0x%llx has lower redundancy than data profile 0x%llx",
-			   meta_target, data_target);
+			   "balance: metadata profile %s has lower redundancy than data profile %s",
+			   get_raid_name(meta_index), get_raid_name(data_index));
 	}
 
 	ret = insert_balance_item(fs_info, bctl);
@@ -3939,7 +3944,7 @@  static int balance_kthread(void *data)
 
 	mutex_lock(&fs_info->balance_mutex);
 	if (fs_info->balance_ctl) {
-		btrfs_info(fs_info, "continuing balance");
+		btrfs_info(fs_info, "balance: resuming");
 		ret = btrfs_balance(fs_info, fs_info->balance_ctl, NULL);
 	}
 	mutex_unlock(&fs_info->balance_mutex);
@@ -3959,7 +3964,7 @@  int btrfs_resume_balance_async(struct btrfs_fs_info *fs_info)
 	mutex_unlock(&fs_info->balance_mutex);
 
 	if (btrfs_test_opt(fs_info, SKIP_BALANCE)) {
-		btrfs_info(fs_info, "force skipping balance");
+		btrfs_info(fs_info, "balance: resume skipped");
 		return 0;
 	}
 
@@ -4024,7 +4029,7 @@  int btrfs_recover_balance(struct btrfs_fs_info *fs_info)
 	 */
 	if (test_and_set_bit(BTRFS_FS_EXCL_OP, &fs_info->flags))
 		btrfs_warn(fs_info,
-	"cannot set exclusive op status to balance, resume manually");
+	"balance: cannot set exclusive op status, resume manually");
 
 	mutex_lock(&fs_info->balance_mutex);
 	BUG_ON(fs_info->balance_ctl);
@@ -4105,6 +4110,7 @@  int btrfs_cancel_balance(struct btrfs_fs_info *fs_info)
 		if (fs_info->balance_ctl) {
 			reset_balance_state(fs_info);
 			clear_bit(BTRFS_FS_EXCL_OP, &fs_info->flags);
+			btrfs_info(fs_info, "balance: canceled");
 		}
 	}