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authorJoerg Roedel <jroedel@suse.de>2020-06-01 21:52:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-02 10:59:12 -0700
commit73f693c3a705756032c2863bfb37570276902d7d (patch)
tree7a22b838b245fa42ccf1e33e900030c5967ee0cc /mm/vmalloc.c
parent86cf69f1d893d48fdb0382a940f2523409406423 (diff)
mm: remove vmalloc_sync_(un)mappings()
These functions are not needed anymore because the vmalloc and ioremap mappings are now synchronized when they are created or torn down. Remove all callers and function definitions. Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Acked-by: Andy Lutomirski <luto@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Link: http://lkml.kernel.org/r/20200515140023.25469-7-joro@8bytes.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmalloc.c')
-rw-r--r--mm/vmalloc.c21
1 files changed, 0 insertions, 21 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 154e3396154c..1e94497b7388 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1354,12 +1354,6 @@ static bool __purge_vmap_area_lazy(unsigned long start, unsigned long end)
return false;
/*
- * First make sure the mappings are removed from all page-tables
- * before they are freed.
- */
- vmalloc_sync_unmappings();
-
- /*
* TODO: to calculate a flush range without looping.
* The list can be up to lazy_max_pages() elements.
*/
@@ -3089,21 +3083,6 @@ int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
}
EXPORT_SYMBOL(remap_vmalloc_range);
-/*
- * Implement stubs for vmalloc_sync_[un]mappings () if the architecture chose
- * not to have one.
- *
- * The purpose of this function is to make sure the vmalloc area
- * mappings are identical in all page-tables in the system.
- */
-void __weak vmalloc_sync_mappings(void)
-{
-}
-
-void __weak vmalloc_sync_unmappings(void)
-{
-}
-
static int f(pte_t *pte, unsigned long addr, void *data)
{
pte_t ***p = data;