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Message-Id: <20230727080502.77895-9-zhengqi.arch@bytedance.com>
Date: Thu, 27 Jul 2023 16:04:21 +0800
From: Qi Zheng <zhengqi.arch@...edance.com>
To: akpm@...ux-foundation.org, david@...morbit.com, tkhai@...ru,
vbabka@...e.cz, roman.gushchin@...ux.dev, djwong@...nel.org,
brauner@...nel.org, paulmck@...nel.org, tytso@....edu,
steven.price@....com, cel@...nel.org, senozhatsky@...omium.org,
yujie.liu@...el.com, gregkh@...uxfoundation.org,
muchun.song@...ux.dev
Cc: linux-kernel@...r.kernel.org, linux-mm@...ck.org, x86@...nel.org,
kvm@...r.kernel.org, xen-devel@...ts.xenproject.org,
linux-erofs@...ts.ozlabs.org,
linux-f2fs-devel@...ts.sourceforge.net, cluster-devel@...hat.com,
linux-nfs@...r.kernel.org, linux-mtd@...ts.infradead.org,
rcu@...r.kernel.org, netdev@...r.kernel.org,
dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
dm-devel@...hat.com, linux-raid@...r.kernel.org,
linux-bcache@...r.kernel.org,
virtualization@...ts.linux-foundation.org,
linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
linux-xfs@...r.kernel.org, linux-btrfs@...r.kernel.org,
Qi Zheng <zhengqi.arch@...edance.com>,
Muchun Song <songmuchun@...edance.com>
Subject: [PATCH v3 08/49] drm/ttm: dynamically allocate the drm-ttm_pool shrinker
Use new APIs to dynamically allocate the drm-ttm_pool shrinker.
Signed-off-by: Qi Zheng <zhengqi.arch@...edance.com>
Reviewed-by: Muchun Song <songmuchun@...edance.com>
---
drivers/gpu/drm/ttm/ttm_pool.c | 23 +++++++++++++++--------
1 file changed, 15 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/ttm/ttm_pool.c b/drivers/gpu/drm/ttm/ttm_pool.c
index cddb9151d20f..c9c9618c0dce 100644
--- a/drivers/gpu/drm/ttm/ttm_pool.c
+++ b/drivers/gpu/drm/ttm/ttm_pool.c
@@ -73,7 +73,7 @@ static struct ttm_pool_type global_dma32_uncached[MAX_ORDER + 1];
static spinlock_t shrinker_lock;
static struct list_head shrinker_list;
-static struct shrinker mm_shrinker;
+static struct shrinker *mm_shrinker;
/* Allocate pages of size 1 << order with the given gfp_flags */
static struct page *ttm_pool_alloc_page(struct ttm_pool *pool, gfp_t gfp_flags,
@@ -734,8 +734,8 @@ static int ttm_pool_debugfs_shrink_show(struct seq_file *m, void *data)
struct shrink_control sc = { .gfp_mask = GFP_NOFS };
fs_reclaim_acquire(GFP_KERNEL);
- seq_printf(m, "%lu/%lu\n", ttm_pool_shrinker_count(&mm_shrinker, &sc),
- ttm_pool_shrinker_scan(&mm_shrinker, &sc));
+ seq_printf(m, "%lu/%lu\n", ttm_pool_shrinker_count(mm_shrinker, &sc),
+ ttm_pool_shrinker_scan(mm_shrinker, &sc));
fs_reclaim_release(GFP_KERNEL);
return 0;
@@ -779,10 +779,17 @@ int ttm_pool_mgr_init(unsigned long num_pages)
&ttm_pool_debugfs_shrink_fops);
#endif
- mm_shrinker.count_objects = ttm_pool_shrinker_count;
- mm_shrinker.scan_objects = ttm_pool_shrinker_scan;
- mm_shrinker.seeks = 1;
- return register_shrinker(&mm_shrinker, "drm-ttm_pool");
+ mm_shrinker = shrinker_alloc(0, "drm-ttm_pool");
+ if (!mm_shrinker)
+ return -ENOMEM;
+
+ mm_shrinker->count_objects = ttm_pool_shrinker_count;
+ mm_shrinker->scan_objects = ttm_pool_shrinker_scan;
+ mm_shrinker->seeks = 1;
+
+ shrinker_register(mm_shrinker);
+
+ return 0;
}
/**
@@ -802,6 +809,6 @@ void ttm_pool_mgr_fini(void)
ttm_pool_type_fini(&global_dma32_uncached[i]);
}
- unregister_shrinker(&mm_shrinker);
+ shrinker_free(mm_shrinker);
WARN_ON(!list_empty(&shrinker_list));
}
--
2.30.2
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