On 19.05.2017 20:39, Liu Bo wrote: > We commit transaction in order to reclaim space from pinned bytes because > it could process delayed refs, and in may_commit_transaction(), we check > first if pinned bytes are enough for the required space, we then check if > that plus bytes reserved for delayed insert are enough for the required > space. > > This changes the code to the above logic. > > Signed-off-by: Liu Bo <bo.li....@oracle.com>
Please add: Fixes: b150a4f10d87 ("Btrfs: use a percpu to keep track of possibly pinned bytes") > --- > fs/btrfs/extent-tree.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c > index e390451c72e6..bded1ddd1bb6 100644 > --- a/fs/btrfs/extent-tree.c > +++ b/fs/btrfs/extent-tree.c > @@ -4837,7 +4837,7 @@ static int may_commit_transaction(struct btrfs_fs_info > *fs_info, > > spin_lock(&delayed_rsv->lock); > if (percpu_counter_compare(&space_info->total_bytes_pinned, > - bytes - delayed_rsv->size) >= 0) { > + bytes - delayed_rsv->size) < 0) { > spin_unlock(&delayed_rsv->lock); > return -ENOSPC; > } > With the minor nit above: Reviewed-by: Nikolay Borisov <nbori...@suse.com> Tested-by: Nikolay Borisov <nbori...@suse.com> -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html