xfs: add a comment to describe xfs_gc_bio.victim_rtg

All other fields have comments describing them, add one for this field
as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

diff --git a/fs/xfs/xfs_zone_gc.c b/fs/xfs/xfs_zone_gc.c
index e4f70e02463273bfc6ed819930f62ec8b8145200..7ab8f2218c6a8390c3c49a878a8f1f697fea7e78 100644 (file)
--- a/fs/xfs/xfs_zone_gc.c
+++ b/fs/xfs/xfs_zone_gc.c
@@ -103,6 +103,7 @@ struct xfs_gc_bio {
        /* Open Zone being written to */
        struct xfs_open_zone            *oz;
 
+       /* Realtime group currently being reclaimed */
        struct xfs_rtgroup              *victim_rtg;
 
        /* Bio used for reads and writes, including the bvec used by it */