From 68a532030edc2430dac3694fa1d7e387fc635a09 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Thu, 19 Oct 2017 13:55:13 +0100
Subject: [PATCH] mm: remove cold parameter for release_pages
References: bsc#1060256
Patch-mainline: v4.15-rc1
Git-commit: c6f92f9fbe7dbcc8903a67229aa88b4077ae4422
All callers of release_pages claim the pages being released are cache hot.
As no one cares about the hotness of pages being released to the
allocator, just ditch the parameter.
No performance impact is expected as the overhead is marginal. The
parameter is removed simply because it is a bit stupid to have a useless
parameter copied everywhere.
Link: http://lkml.kernel.org/r/20171018075952.10627-7-mgorman@techsingularity.net
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 6 ++----
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +-
drivers/gpu/drm/etnaviv/etnaviv_gem.c | 6 +++---
drivers/gpu/drm/i915/i915_gem_userptr.c | 4 ++--
drivers/gpu/drm/radeon/radeon_ttm.c | 2 +-
fs/fuse/dev.c | 2 +-
include/linux/pagemap.h | 2 +-
include/linux/swap.h | 2 +-
mm/swap.c | 8 ++++----
mm/swap_state.c | 2 +-
11 files changed, 18 insertions(+), 20 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -569,8 +569,7 @@ static int amdgpu_cs_parser_bos(struct a
* invalidated it. Free it and try again
*/
release_pages(e->user_pages,
- e->robj->tbo.ttm->num_pages,
- false);
+ e->robj->tbo.ttm->num_pages);
kvfree(e->user_pages);
e->user_pages = NULL;
}
@@ -707,8 +706,7 @@ error_free_pages:
continue;
release_pages(e->user_pages,
- e->robj->tbo.ttm->num_pages,
- false);
+ e->robj->tbo.ttm->num_pages);
kvfree(e->user_pages);
}
}
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -380,7 +380,7 @@ int amdgpu_gem_userptr_ioctl(struct drm_
return 0;
free_pages:
- release_pages(bo->tbo.ttm->pages, bo->tbo.ttm->num_pages, false);
+ release_pages(bo->tbo.ttm->pages, bo->tbo.ttm->num_pages);
unlock_mmap_sem:
up_read(¤t->mm->mmap_sem);
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -629,7 +629,7 @@ int amdgpu_ttm_tt_get_user_pages(struct
return 0;
release_pages:
- release_pages(pages, pinned, 0);
+ release_pages(pages, pinned);
return r;
}
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -771,7 +771,7 @@ static struct page **etnaviv_gem_userptr
up_read(&mm->mmap_sem);
if (ret < 0) {
- release_pages(pvec, pinned, 0);
+ release_pages(pvec, pinned);
kvfree(pvec);
return ERR_PTR(ret);
}
@@ -844,7 +844,7 @@ static int etnaviv_gem_userptr_get_pages
}
}
- release_pages(pvec, pinned, 0);
+ release_pages(pvec, pinned);
kvfree(pvec);
work = kmalloc(sizeof(*work), GFP_KERNEL);
@@ -878,7 +878,7 @@ static void etnaviv_gem_userptr_release(
if (etnaviv_obj->pages) {
int npages = etnaviv_obj->base.size >> PAGE_SHIFT;
- release_pages(etnaviv_obj->pages, npages, 0);
+ release_pages(etnaviv_obj->pages, npages);
kvfree(etnaviv_obj->pages);
}
put_task_struct(etnaviv_obj->userptr.task);
--- a/drivers/gpu/drm/i915/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/i915_gem_userptr.c
@@ -554,7 +554,7 @@ __i915_gem_userptr_get_pages_worker(stru
}
mutex_unlock(&obj->mm.lock);
- release_pages(pvec, pinned, 0);
+ release_pages(pvec, pinned);
kvfree(pvec);
i915_gem_object_put(obj);
@@ -668,7 +668,7 @@ i915_gem_userptr_get_pages(struct drm_i9
__i915_gem_userptr_set_active(obj, true);
if (IS_ERR(pages))
- release_pages(pvec, pinned, 0);
+ release_pages(pvec, pinned);
kvfree(pvec);
return pages;
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -597,7 +597,7 @@ release_sg:
kfree(ttm->sg);
release_pages:
- release_pages(ttm->pages, pinned, 0);
+ release_pages(ttm->pages, pinned);
return r;
}
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1636,7 +1636,7 @@ out_finish:
static void fuse_retrieve_end(struct fuse_conn *fc, struct fuse_req *req)
{
- release_pages(req->pages, req->num_pages, false);
+ release_pages(req->pages, req->num_pages);
}
static int fuse_retrieve(struct fuse_conn *fc, struct inode *inode,
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -115,7 +115,7 @@ static inline void mapping_set_gfp_mask(
m->gfp_mask = mask;
}
-void release_pages(struct page **pages, int nr, bool cold);
+void release_pages(struct page **pages, int nr);
/*
* speculatively take a reference to a page.
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -460,7 +460,7 @@ extern void exit_swap_address_space(unsi
#define free_page_and_swap_cache(page) \
put_page(page)
#define free_pages_and_swap_cache(pages, nr) \
- release_pages((pages), (nr), false);
+ release_pages((pages), (nr));
static inline void show_swap_cache_info(void)
{
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -210,7 +210,7 @@ static void pagevec_lru_move_fn(struct p
}
if (pgdat)
spin_unlock_irqrestore(&pgdat->lru_lock, flags);
- release_pages(pvec->pages, pvec->nr, 0);
+ release_pages(pvec->pages, pvec->nr);
pagevec_reinit(pvec);
}
@@ -734,7 +734,7 @@ void lru_add_drain_all(void)
* Decrement the reference count on all the pages in @pages. If it
* fell to zero, remove the page from the LRU and free it.
*/
-void release_pages(struct page **pages, int nr, bool cold)
+void release_pages(struct page **pages, int nr)
{
int i;
LIST_HEAD(pages_to_free);
@@ -811,7 +811,7 @@ void release_pages(struct page **pages,
spin_unlock_irqrestore(&locked_pgdat->lru_lock, flags);
mem_cgroup_uncharge_list(&pages_to_free);
- free_hot_cold_page_list(&pages_to_free, cold);
+ free_hot_cold_page_list(&pages_to_free, 0);
}
EXPORT_SYMBOL(release_pages);
@@ -831,7 +831,7 @@ void __pagevec_release(struct pagevec *p
lru_add_drain();
pvec->drained = true;
}
- release_pages(pvec->pages, pagevec_count(pvec), 0);
+ release_pages(pvec->pages, pagevec_count(pvec));
pagevec_reinit(pvec);
}
EXPORT_SYMBOL(__pagevec_release);
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -293,7 +293,7 @@ void free_pages_and_swap_cache(struct pa
lru_add_drain();
for (i = 0; i < nr; i++)
free_swap_cache(pagep[i]);
- release_pages(pagep, nr, false);
+ release_pages(pagep, nr);
}
/*