[PATCH 06/25] xfs: remove the unused pag_active_wq field in struct xfs_perag

Darrick J. Wong
2024-10-11T00:39:15Z

From: Christoph Hellwig <hch@lst.de>

pag_active_wq is only woken, but never waited for.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
fs/xfs/libxfs/xfs_ag.c | 4 +---
fs/xfs/libxfs/xfs_ag.h | 1 -
2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_ag.c b/fs/xfs/libxfs/xfs_ag.c
index e5efa7df623d65..1c478a5c43b72d 100644
--- a/fs/xfs/libxfs/xfs_ag.c
+++ b/fs/xfs/libxfs/xfs_ag.c
@@ -107,8 +107,7 @@ xfs_perag_rele(
struct xfs_perag *pag)
{
trace_xfs_perag_rele(pag, _RET_IP_);
- if (atomic_dec_and_test(&pag->pag_active_ref))
- wake_up(&pag->pag_active_wq);
+ atomic_dec(&pag->pag_active_ref);
}

/*
@@ -312,7 +311,6 @@ xfs_initialize_perag(
INIT_RADIX_TREE(&pag->pag_ici_root, GFP_ATOMIC);
xfs_defer_drain_init(&pag->pag_intents_drain);
init_waitqueue_head(&pag->pagb_wait);
- init_waitqueue_head(&pag->pag_active_wq);
pag->pagb_tree = RB_ROOT;
xfs_hooks_init(&pag->pag_rmap_update_hooks);
#endif /* __KERNEL__ */
diff --git a/fs/xfs/libxfs/xfs_ag.h b/fs/xfs/libxfs/xfs_ag.h
index 93d7dbb11c2cb0..d0991ae0aa77ef 100644
--- a/fs/xfs/libxfs/xfs_ag.h
+++ b/fs/xfs/libxfs/xfs_ag.h
@@ -34,7 +34,6 @@ struct xfs_perag {
xfs_agnumber_t pag_agno; /* AG this structure belongs to */
atomic_t pag_ref; /* passive reference count */
atomic_t pag_active_ref; /* active reference count */
- wait_queue_head_t pag_active_wq;/* woken active_ref falls to zero */
unsigned long pag_opstate;
uint8_t pagf_bno_level; /* # of levels in bno btree */
uint8_t pagf_cnt_level; /* # of levels in cnt btree */