On 3.12.18 г. 18:06 ч., Josef Bacik wrote: > Delayed iputs means we can have final iputs of deleted inodes in the > queue, which could potentially generate a lot of pinned space that could > be free'd. So before we decide to commit the transaction for ENOPSC > reasons, run the delayed iputs so that any potential space is free'd up. > If there is and we freed enough we can then commit the transaction and > potentially be able to make our reservation. > > Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx> > Reviewed-by: Omar Sandoval <osandov@xxxxxx> Reviewed-by: Nikolay Borisov <nborisov@xxxxxxxx> > --- > fs/btrfs/extent-tree.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c > index 8dfddfd3f315..0127d272cd2a 100644 > --- a/fs/btrfs/extent-tree.c > +++ b/fs/btrfs/extent-tree.c > @@ -4953,6 +4953,15 @@ static void flush_space(struct btrfs_fs_info *fs_info, > ret = 0; > break; > case COMMIT_TRANS: > + /* > + * If we have pending delayed iputs then we could free up a > + * bunch of pinned space, so make sure we run the iputs before > + * we do our pinned bytes check below. > + */ > + mutex_lock(&fs_info->cleaner_delayed_iput_mutex); > + btrfs_run_delayed_iputs(fs_info); > + mutex_unlock(&fs_info->cleaner_delayed_iput_mutex); > + > ret = may_commit_transaction(fs_info, space_info); > break; > default: >
