Re: [PATCH v2] btrfs: allow changing 'thread_pool' size at remount time

[Josef Bacik <josef@xxxxxxxxxx>]

On Tue, Apr 24, 2012 at 10:59:16PM +0300, Sergei Trofimovich wrote:
> From: Sergei Trofimovich <slyfox@xxxxxxxxxx>
> 
> Changing 'mount -oremount,thread_pool=2 /' didn't make any effect:
> 
> maximum amount of worker threads is specified in 2 places:
> - in 'strict btrfs_fs_info::thread_pool_size'
> - in each worker struct: 'struct btrfs_workers::max_workers'
> 
> 'mount -oremount' updated only 'btrfs_fs_info::thread_pool_size'.
> 
> Fix it by pushing new maximum value to all created worker structures
> as well.
> 
> Cc: Josef Bacik <josef@xxxxxxxxxx>
> Cc: Chris Mason <chris.mason@xxxxxxxxxx>
> Signed-off-by: Sergei Trofimovich <slyfox@xxxxxxxxxx>

Reviewed-by: Josef Bacik <josef@xxxxxxxxxx>

Thanks,

Josef
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