Commit 2fad4e83 authored by David Sterba's avatar David Sterba Committed by Chris Mason

btrfs: wake up transaction thread from SYNC_FS ioctl

The transaction thread may want to do more work, namely it pokes the
cleaner ktread that will start processing uncleaned subvols.

This can be triggered by user via the 'btrfs fi sync' command, otherwise
there was a delay up to 30 seconds before the cleaner started to clean
old snapshots.
Signed-off-by: default avatarDavid Sterba <dsterba@suse.cz>
Signed-off-by: default avatarChris Mason <clm@fb.com>
parent c01a5c07
...@@ -5288,6 +5288,12 @@ long btrfs_ioctl(struct file *file, unsigned int ...@@ -5288,6 +5288,12 @@ long btrfs_ioctl(struct file *file, unsigned int
if (ret) if (ret)
return ret; return ret;
ret = btrfs_sync_fs(file->f_dentry->d_sb, 1); ret = btrfs_sync_fs(file->f_dentry->d_sb, 1);
/*
* The transaction thread may want to do more work,
* namely it pokes the cleaner ktread that will start
* processing uncleaned subvols.
*/
wake_up_process(root->fs_info->transaction_kthread);
return ret; return ret;
} }
case BTRFS_IOC_START_SYNC: case BTRFS_IOC_START_SYNC:
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment