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From: Coly Li <colyli@suse.de>
To: linux-bcache@vger.kernel.org
Cc: linux-block@vger.kernel.org, linux-nvdimm@lists.01.org,
	axboe@kernel.dk, jianpeng.ma@intel.com, qiaowei.ren@intel.com,
	hare@suse.com, jack@suse.cz, dan.j.williams@intel.com
Subject: [PATCH v7 06/16] bcache: get allocated pages from specific owner
Date: Sat, 10 Apr 2021 00:43:33 +0800	[thread overview]
Message-ID: <20210409164343.56828-7-colyli@suse.de> (raw)
In-Reply-To: <20210409164343.56828-1-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>
---
 drivers/md/bcache/nvm-pages.c | 6 ++++++
 drivers/md/bcache/nvm-pages.h | 7 ++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/md/bcache/nvm-pages.c b/drivers/md/bcache/nvm-pages.c
index e576b4cb4850..2ba02091bccf 100644
--- a/drivers/md/bcache/nvm-pages.c
+++ b/drivers/md/bcache/nvm-pages.c
@@ -374,6 +374,12 @@ 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 4ea831894583..87b1efc301c8 100644
--- a/drivers/md/bcache/nvm-pages.h
+++ b/drivers/md/bcache/nvm-pages.h
@@ -62,7 +62,7 @@ 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
 
 static inline struct bch_nvm_namespace *bch_register_namespace(const char *dev_path)
@@ -81,6 +81,11 @@ static inline void *bch_nvm_alloc_pages(int order, const char *owner_uuid)
 
 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 */
 
 #endif /* _BCACHE_NVM_PAGES_H */
-- 
2.26.2


  parent reply	other threads:[~2021-04-09 16:44 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-09 16:43 [PATCH v7 00/16] bcache: support NVDIMM for journaling Coly Li
2021-04-09 16:43 ` [PATCH v7 01/16] bcache: add initial data structures for nvm pages Coly Li
2021-04-09 16:43 ` [PATCH v7 02/16] bcache: initialize the nvm pages allocator Coly Li
2021-04-09 16:43 ` [PATCH v7 03/16] bcache: initialization of the buddy Coly Li
2021-04-09 16:43 ` [PATCH v7 04/16] bcache: bch_nvm_alloc_pages() " Coly Li
2021-04-09 16:43 ` [PATCH v7 05/16] bcache: bch_nvm_free_pages() " Coly Li
2021-04-09 16:43 ` Coly Li [this message]
2021-04-09 16:43 ` [PATCH v7 07/16] bcache: nvm-pages fixes for bcache integration testing Coly Li
2021-04-09 16:43 ` [PATCH v7 08/16] bcache: use bucket index to set GC_MARK_METADATA for journal buckets in bch_btree_gc_finish() Coly Li
2021-04-09 16:43 ` [PATCH v7 09/16] bcache: add BCH_FEATURE_INCOMPAT_NVDIMM_META into incompat feature set Coly Li
2021-04-09 16:43 ` [PATCH v7 10/16] bcache: initialize bcache journal for NVDIMM meta device Coly Li
2021-04-09 16:43 ` [PATCH v7 11/16] bcache: support storing bcache journal into " Coly Li
2021-04-09 16:43 ` [PATCH v7 12/16] bcache: read jset from NVDIMM pages for journal replay Coly Li
2021-04-09 16:43 ` [PATCH v7 13/16] bcache: add sysfs interface register_nvdimm_meta to register NVDIMM meta device Coly Li
2021-04-09 16:43 ` [PATCH v7 14/16] bcache: use div_u64() in init_owner_info() Coly Li
2021-04-09 16:43 ` [PATCH v7 15/16] bcache: fix BCACHE_NVM_PAGES' dependences in Kconfig Coly Li
2021-04-09 16:43 ` [PATCH v7 16/16] bcache: more fix for compiling error when BCACHE_NVM_PAGES disabled Coly Li

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