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From: Pavel Tatashin <pasha.tatashin@soleen.com>
To: pasha.tatashin@soleen.com, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org, akpm@linux-foundation.org, vbabka@suse.cz,
	mhocko@suse.com, david@redhat.com, osalvador@suse.de,
	dan.j.williams@intel.com, sashal@kernel.org,
	tyhicks@linux.microsoft.com, iamjoonsoo.kim@lge.com,
	mike.kravetz@oracle.com, rostedt@goodmis.org, mingo@redhat.com,
	jgg@ziepe.ca, peterz@infradead.org, mgorman@suse.de,
	willy@infradead.org, rientjes@google.com, jhubbard@nvidia.com,
	linux-doc@vger.kernel.org
Subject: [PATCH v2 3/8] mm/gup: make __gup_longterm_locked common
Date: Wed,  9 Dec 2020 19:43:30 -0500	[thread overview]
Message-ID: <20201210004335.64634-4-pasha.tatashin@soleen.com> (raw)
In-Reply-To: <20201210004335.64634-1-pasha.tatashin@soleen.com>

__gup_longterm_locked() has CMA || FS_DAX version and a common stub
version. In the preparation of prohibiting longterm pinning of pages from
movable zone make the CMA || FS_DAX version common, and delete the stub
version.

Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
---
 mm/gup.c | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/mm/gup.c b/mm/gup.c
index 3a76c005a3e2..0e2de888a8b0 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1567,7 +1567,6 @@ struct page *get_dump_page(unsigned long addr)
 }
 #endif /* CONFIG_ELF_CORE */
 
-#if defined(CONFIG_FS_DAX) || defined (CONFIG_CMA)
 #ifdef CONFIG_FS_DAX
 static bool check_dax_vmas(struct vm_area_struct **vmas, long nr_pages)
 {
@@ -1757,18 +1756,6 @@ static long __gup_longterm_locked(struct mm_struct *mm,
 		kfree(vmas_tmp);
 	return rc;
 }
-#else /* !CONFIG_FS_DAX && !CONFIG_CMA */
-static __always_inline long __gup_longterm_locked(struct mm_struct *mm,
-						  unsigned long start,
-						  unsigned long nr_pages,
-						  struct page **pages,
-						  struct vm_area_struct **vmas,
-						  unsigned int flags)
-{
-	return __get_user_pages_locked(mm, start, nr_pages, pages, vmas,
-				       NULL, flags);
-}
-#endif /* CONFIG_FS_DAX || CONFIG_CMA */
 
 static bool is_valid_gup_flags(unsigned int gup_flags)
 {
-- 
2.25.1


  parent reply	other threads:[~2020-12-10  0:46 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-10  0:43 [PATCH v2 0/8] prohibit pinning pages in ZONE_MOVABLE Pavel Tatashin
2020-12-10  0:43 ` [PATCH v2 1/8] mm/gup: perform check_dax_vmas only when FS_DAX is enabled Pavel Tatashin
2020-12-10  6:36   ` Pankaj Gupta
2020-12-10 13:30     ` Pavel Tatashin
2020-12-10  0:43 ` [PATCH v2 2/8] mm/gup: don't pin migrated cma pages in movable zone Pavel Tatashin
2020-12-10  0:43 ` Pavel Tatashin [this message]
2020-12-10  4:06   ` [PATCH v2 3/8] mm/gup: make __gup_longterm_locked common Ira Weiny
2020-12-10 13:30     ` Pavel Tatashin
2020-12-10 17:44       ` Ira Weiny
2020-12-10 18:57         ` Pavel Tatashin
2020-12-10 19:53           ` Jason Gunthorpe
2020-12-10 19:54             ` Pavel Tatashin
2020-12-10  0:43 ` [PATCH v2 4/8] mm cma: rename PF_MEMALLOC_NOCMA to PF_MEMALLOC_PIN Pavel Tatashin
2020-12-10  0:43 ` [PATCH v2 5/8] mm: apply per-task gfp constraints in fast path Pavel Tatashin
2020-12-10  0:43 ` [PATCH v2 6/8] mm: honor PF_MEMALLOC_PIN for all movable pages Pavel Tatashin
2020-12-10  0:43 ` [PATCH v2 7/8] mm/gup: migrate pinned pages out of movable zone Pavel Tatashin
2020-12-10  0:43 ` [PATCH v2 8/8] memory-hotplug.rst: add a note about ZONE_MOVABLE and page pinning Pavel Tatashin

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