From: Bob Liu <lliubbo@gmail.com>
To: xen-devel@lists.xenproject.org
Cc: Bob Liu <bob.liu@oracle.com>,
keir@xen.org, ian.campbell@citrix.com, JBeulich@suse.com
Subject: [PATCH 11/11] tmem: cleanup: drop useless functions
Date: Mon, 4 Nov 2013 20:40:54 +0800 [thread overview]
Message-ID: <1383568854-30521-12-git-send-email-bob.liu@oracle.com> (raw)
In-Reply-To: <1383568854-30521-1-git-send-email-bob.liu@oracle.com>
Function tmem_release_avail_pages_to_host() and tmem_scrub_page() only used
once, no need to separate them out.
Signed-off-by: Bob Liu <bob.liu@oracle.com>
---
xen/common/tmem.c | 19 +++++++++++++++++--
xen/common/tmem_xen.c | 24 ------------------------
xen/include/xen/tmem_xen.h | 3 ---
3 files changed, 17 insertions(+), 29 deletions(-)
diff --git a/xen/common/tmem.c b/xen/common/tmem.c
index 43d058c..4af04c5 100644
--- a/xen/common/tmem.c
+++ b/xen/common/tmem.c
@@ -1416,7 +1416,19 @@ static unsigned long tmem_relinquish_npages(unsigned long n)
break;
}
if ( avail_pages )
- tmem_release_avail_pages_to_host();
+ {
+ spin_lock(&tmem_page_list_lock);
+ while ( !page_list_empty(&tmem_page_list) )
+ {
+ struct page_info *pg = page_list_remove_head(&tmem_page_list);
+ scrub_one_page(pg);
+ tmem_page_list_pages--;
+ free_domheap_page(pg);
+ }
+ ASSERT(tmem_page_list_pages == 0);
+ INIT_PAGE_LIST_HEAD(&tmem_page_list);
+ spin_unlock(&tmem_page_list_lock);
+ }
return avail_pages;
}
@@ -2909,9 +2921,12 @@ EXPORT void *tmem_relinquish_pages(unsigned int order, unsigned int memflags)
}
if ( evicts_per_relinq > max_evicts_per_relinq )
max_evicts_per_relinq = evicts_per_relinq;
- tmem_scrub_page(pfp, memflags);
if ( pfp != NULL )
+ {
+ if ( !(memflags & MEMF_tmem) )
+ scrub_one_page(pfp);
relinq_pgs++;
+ }
if ( tmem_called_from_tmem(memflags) )
{
diff --git a/xen/common/tmem_xen.c b/xen/common/tmem_xen.c
index 0f5955d..d6e2e0d 100644
--- a/xen/common/tmem_xen.c
+++ b/xen/common/tmem_xen.c
@@ -289,30 +289,6 @@ EXPORT DEFINE_SPINLOCK(tmem_page_list_lock);
EXPORT PAGE_LIST_HEAD(tmem_page_list);
EXPORT unsigned long tmem_page_list_pages = 0;
-/* free anything on tmem_page_list to Xen's scrub list */
-EXPORT void tmem_release_avail_pages_to_host(void)
-{
- spin_lock(&tmem_page_list_lock);
- while ( !page_list_empty(&tmem_page_list) )
- {
- struct page_info *pg = page_list_remove_head(&tmem_page_list);
- scrub_one_page(pg);
- tmem_page_list_pages--;
- free_domheap_page(pg);
- }
- ASSERT(tmem_page_list_pages == 0);
- INIT_PAGE_LIST_HEAD(&tmem_page_list);
- spin_unlock(&tmem_page_list_lock);
-}
-
-EXPORT void tmem_scrub_page(struct page_info *pi, unsigned int memflags)
-{
- if ( pi == NULL )
- return;
- if ( !(memflags & MEMF_tmem) )
- scrub_one_page(pi);
-}
-
static noinline void *tmem_mempool_page_get(unsigned long size)
{
struct page_info *pi;
diff --git a/xen/include/xen/tmem_xen.h b/xen/include/xen/tmem_xen.h
index acfc7ae..ce9c316 100644
--- a/xen/include/xen/tmem_xen.h
+++ b/xen/include/xen/tmem_xen.h
@@ -42,9 +42,6 @@ extern void tmem_copy_page(char *to, char*from);
extern int tmem_init(void);
#define tmem_hash hash_long
-extern void tmem_release_avail_pages_to_host(void);
-extern void tmem_scrub_page(struct page_info *pi, unsigned int memflags);
-
extern bool_t opt_tmem_compress;
static inline bool_t tmem_compression_enabled(void)
{
--
1.7.10.4
next prev parent reply other threads:[~2013-11-04 12:46 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-04 12:40 [RFC PATCH 00/11] tmem: some basic cleanup Bob Liu
2013-11-04 12:40 ` [PATCH 01/11] tmem: cleanup: drop COMPARE_COPY_PAGE_SSE2 Bob Liu
2013-11-04 12:40 ` [PATCH 02/11] tmem: cleanup: drop typedef pfp_t Bob Liu
2013-11-04 12:40 ` [PATCH 03/11] tmem: cleanup: drop typedef tmem_cli_mfn_t Bob Liu
2013-11-04 12:40 ` [PATCH 04/11] tmem: cleanup: rename 'tmh_' with 'tmem_' Bob Liu
2013-11-04 12:40 ` [PATCH 05/11] tmem: cleanup: drop most of the typedefs Bob Liu
2013-11-04 12:40 ` [PATCH 06/11] tmem: cleanup: drop function tmem_alloc/free_infra Bob Liu
2013-11-04 12:40 ` [PATCH 07/11] tmem: cleanup: drop typedef tmem_client_t Bob Liu
2013-11-04 12:40 ` [PATCH 08/11] tmem: cleanup: drop useless wrap functions Bob Liu
2013-11-04 12:40 ` [PATCH 09/11] tmem: cleanup: drop unused function 'domain_fully_allocated' Bob Liu
2013-11-04 12:40 ` [PATCH 10/11] tmem: cleanup: drop useless '_subpage' wrap functions Bob Liu
2013-11-04 12:40 ` Bob Liu [this message]
2013-11-04 15:56 ` [RFC PATCH 00/11] tmem: some basic cleanup Jan Beulich
2013-11-04 16:48 ` Konrad Rzeszutek Wilk
2013-11-05 2:04 ` Bob Liu
2013-11-05 9:03 ` Jan Beulich
2013-11-05 14:46 ` Konrad Rzeszutek Wilk
2013-11-05 14:57 ` Jan Beulich
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