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btrfs: balance: print to system log when balance ends or is paused 

Print a kernel log message when the balance ends, either for cancel or
completed or if it is paused.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Anand Jain 2018-11-20 16:12:57 +08:00 committed by David Sterba
parent 56fc37d936
commit 7333bd02dc
1 changed files with 7 additions and 0 deletions
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7
fs/btrfs/volumes.c
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@ -4287,6 +4287,13 @@ int btrfs_balance(struct btrfs_fs_info *fs_info,
ret = __btrfs_balance(fs_info);
mutex_lock(&fs_info->balance_mutex);
if (ret == -ECANCELED && atomic_read(&fs_info->balance_pause_req))
btrfs_info(fs_info, "balance: paused");
else if (ret == -ECANCELED && atomic_read(&fs_info->balance_cancel_req))
btrfs_info(fs_info, "balance: canceled");
else
btrfs_info(fs_info, "balance: ended with status: %d", ret);
clear_bit(BTRFS_FS_BALANCE_RUNNING, &fs_info->flags);
if (bargs) {