From: Coly Li <colyli@suse.de>
To: axboe@kernel.dk
Cc: linux-bcache@vger.kernel.org, linux-block@vger.kernel.org,
jianpeng.ma@intel.com, qiaowei.ren@intel.com,
Coly Li <colyli@suse.de>
Subject: [PATCH 06/13] bcache: get allocated pages from specific owner
Date: Wed, 14 Apr 2021 13:46:41 +0800 [thread overview]
Message-ID: <20210414054648.24098-7-colyli@suse.de> (raw)
In-Reply-To: <20210414054648.24098-1-colyli@suse.de>
From: Jianpeng Ma <jianpeng.ma@intel.com>
This patch implements bch_get_allocated_pages() of the buddy to be used to
get allocated pages from specific owner.
Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
Co-authored-by: Qiaowei Ren <qiaowei.ren@intel.com>
Signed-off-by: Coly Li <colyli@suse.de>
---
drivers/md/bcache/nvm-pages.c | 6 ++++++
drivers/md/bcache/nvm-pages.h | 5 +++++
2 files changed, 11 insertions(+)
diff --git a/drivers/md/bcache/nvm-pages.c b/drivers/md/bcache/nvm-pages.c
index eaa6e18f3cad..c7e3ccc6af46 100644
--- a/drivers/md/bcache/nvm-pages.c
+++ b/drivers/md/bcache/nvm-pages.c
@@ -390,6 +390,12 @@ void *bch_nvm_alloc_pages(int order, const char *owner_uuid)
}
EXPORT_SYMBOL_GPL(bch_nvm_alloc_pages);
+struct bch_nvm_pages_owner_head *bch_get_allocated_pages(const char *owner_uuid)
+{
+ return find_owner_head(owner_uuid, false);
+}
+EXPORT_SYMBOL_GPL(bch_get_allocated_pages);
+
static int init_owner_info(struct bch_nvm_namespace *ns)
{
struct bch_owner_list_head *owner_list_head = ns->sb->owner_list_head;
diff --git a/drivers/md/bcache/nvm-pages.h b/drivers/md/bcache/nvm-pages.h
index 918aee6a9afc..cfb3e8ef01ee 100644
--- a/drivers/md/bcache/nvm-pages.h
+++ b/drivers/md/bcache/nvm-pages.h
@@ -64,6 +64,7 @@ int bch_nvm_init(void);
void bch_nvm_exit(void);
void *bch_nvm_alloc_pages(int order, const char *owner_uuid);
void bch_nvm_free_pages(void *addr, int order, const char *owner_uuid);
+struct bch_nvm_pages_owner_head *bch_get_allocated_pages(const char *owner_uuid);
#else
@@ -81,6 +82,10 @@ static inline void *bch_nvm_alloc_pages(int order, const char *owner_uuid)
return NULL;
}
static inline void bch_nvm_free_pages(void *addr, int order, const char *owner_uuid) { }
+static inline struct bch_nvm_pages_owner_head *bch_get_allocated_pages(const char *owner_uuid)
+{
+ return NULL;
+}
#endif /* CONFIG_BCACHE_NVM_PAGES */
--
2.26.2
next prev parent reply other threads:[~2021-04-14 5:47 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-14 5:46 [PATCH 00/13] bcache patches for Linux v5.13 -- 2nd wave Coly Li
2021-04-14 5:46 ` [PATCH 01/13] bcache: add initial data structures for nvm pages Coly Li
2021-04-14 5:46 ` [PATCH 02/13] bcache: initialize the nvm pages allocator Coly Li
2021-04-14 5:46 ` [PATCH 03/13] bcache: initialization of the buddy Coly Li
2021-04-14 5:46 ` [PATCH 04/13] bcache: bch_nvm_alloc_pages() " Coly Li
2021-04-14 5:46 ` [PATCH 05/13] bcache: bch_nvm_free_pages() " Coly Li
2021-04-14 5:46 ` Coly Li [this message]
2021-04-14 5:46 ` [PATCH 07/13] bcache: use bucket index to set GC_MARK_METADATA for journal buckets in bch_btree_gc_finish() Coly Li
2021-04-14 5:46 ` [PATCH 08/13] bcache: add BCH_FEATURE_INCOMPAT_NVDIMM_META into incompat feature set Coly Li
2021-04-14 5:46 ` [PATCH 09/13] bcache: initialize bcache journal for NVDIMM meta device Coly Li
2021-04-14 5:46 ` [PATCH 10/13] bcache: support storing bcache journal into " Coly Li
2021-04-14 5:46 ` [PATCH 11/13] bcache: read jset from NVDIMM pages for journal replay Coly Li
2021-04-14 5:46 ` [PATCH 12/13] bcache: add sysfs interface register_nvdimm_meta to register NVDIMM meta device Coly Li
2021-04-14 5:46 ` [PATCH 13/13] bcache: use div_u64() in init_owner_info() Coly Li
2021-04-16 12:01 ` Jens Axboe
2021-04-16 3:55 ` [PATCH 00/13] bcache patches for Linux v5.13 -- 2nd wave Coly Li
2021-04-16 12:02 ` Jens Axboe
2021-04-16 12:26 ` Coly Li
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