[PATCH v5 06/45] erofs: dynamically allocate the erofs-shrinker
From: Qi Zheng <hidden>
Date: 2023-08-24 03:45:27
Also in:
linux-fsdevel, lkml
Subsystem:
erofs file system, filesystems (vfs and infrastructure), the rest · Maintainers:
Gao Xiang, Chao Yu, Alexander Viro, Christian Brauner, Linus Torvalds
Use new APIs to dynamically allocate the erofs-shrinker. Signed-off-by: Qi Zheng <redacted> Reviewed-by: Muchun Song <redacted> CC: Gao Xiang <xiang@kernel.org> CC: Chao Yu <chao@kernel.org> CC: Yue Hu <redacted> CC: Jeffle Xu <jefflexu@linux.alibaba.com> CC: linux-erofs@lists.ozlabs.org --- fs/erofs/utils.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-)
diff --git a/fs/erofs/utils.c b/fs/erofs/utils.c
index cc6fb9e98899..6e1a828e6ca3 100644
--- a/fs/erofs/utils.c
+++ b/fs/erofs/utils.c@@ -270,19 +270,25 @@ static unsigned long erofs_shrink_scan(struct shrinker *shrink, return freed; } -static struct shrinker erofs_shrinker_info = { - .scan_objects = erofs_shrink_scan, - .count_objects = erofs_shrink_count, - .seeks = DEFAULT_SEEKS, -}; +static struct shrinker *erofs_shrinker_info; int __init erofs_init_shrinker(void) { - return register_shrinker(&erofs_shrinker_info, "erofs-shrinker"); + erofs_shrinker_info = shrinker_alloc(0, "erofs-shrinker"); + if (!erofs_shrinker_info) + return -ENOMEM; + + erofs_shrinker_info->count_objects = erofs_shrink_count; + erofs_shrinker_info->scan_objects = erofs_shrink_scan; + erofs_shrinker_info->seeks = DEFAULT_SEEKS; + + shrinker_register(erofs_shrinker_info); + + return 0; } void erofs_exit_shrinker(void) { - unregister_shrinker(&erofs_shrinker_info); + shrinker_free(erofs_shrinker_info); } #endif /* !CONFIG_EROFS_FS_ZIP */
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2.30.2