* [to-be-updated] mm-vmalloc-separate-put-pages-and-flush-vm-flags.patch removed from -mm tree
@ 2021-01-24 1:15 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2021-01-24 1:15 UTC (permalink / raw)
To: dja, hch, linmiaohe, mm-commits, rick.p.edgecombe, stable, willy
The patch titled
Subject: mm/vmalloc: reparate put pages and flush VM flags
has been removed from the -mm tree. Its filename was
mm-vmalloc-separate-put-pages-and-flush-vm-flags.patch
This patch was dropped because an updated version will be merged
------------------------------------------------------
From: Rick Edgecombe <rick.p.edgecombe@intel.com>
Subject: mm/vmalloc: reparate put pages and flush VM flags
When VM_MAP_PUT_PAGES was added, it was defined with the same value as
VM_FLUSH_RESET_PERMS. This doesn't seem like it will cause any big
functional problems other than some excess flushing for VM_MAP_PUT_PAGES
allocations.
Redefine VM_MAP_PUT_PAGES to have its own value. Also, move the comment
and remove whitespace for VM_KASAN such that the flags lower down are less
likely to be missed in the future.
Link: https://lkml.kernel.org/r/20210121014118.31922-1-rick.p.edgecombe@intel.com
Fixes: b944afc9d64d ("mm: add a VM_MAP_PUT_PAGES flag for vmap")
Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Daniel Axtens <dja@axtens.net>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/vmalloc.h | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
--- a/include/linux/vmalloc.h~mm-vmalloc-separate-put-pages-and-flush-vm-flags
+++ a/include/linux/vmalloc.h
@@ -23,9 +23,6 @@ struct notifier_block; /* in notifier.h
#define VM_DMA_COHERENT 0x00000010 /* dma_alloc_coherent */
#define VM_UNINITIALIZED 0x00000020 /* vm_struct is not fully initialized */
#define VM_NO_GUARD 0x00000040 /* don't add guard page */
-#define VM_KASAN 0x00000080 /* has allocated kasan shadow memory */
-#define VM_MAP_PUT_PAGES 0x00000100 /* put pages and free array in vfree */
-
/*
* VM_KASAN is used slighly differently depending on CONFIG_KASAN_VMALLOC.
*
@@ -36,12 +33,13 @@ struct notifier_block; /* in notifier.h
* Otherwise, VM_KASAN is set for kasan_module_alloc() allocations and used to
* determine which allocations need the module shadow freed.
*/
-
+#define VM_KASAN 0x00000080 /* has allocated kasan shadow memory */
/*
* Memory with VM_FLUSH_RESET_PERMS cannot be freed in an interrupt or with
* vfree_atomic().
*/
#define VM_FLUSH_RESET_PERMS 0x00000100 /* Reset direct map and flush TLB on unmap */
+#define VM_MAP_PUT_PAGES 0x00000200 /* put pages and free array in vfree */
/* bits [20..32] reserved for arch specific ioremap internals */
_
Patches currently in -mm which might be from rick.p.edgecombe@intel.com are
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2021-01-24 1:16 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-01-24 1:15 [to-be-updated] mm-vmalloc-separate-put-pages-and-flush-vm-flags.patch removed from -mm tree akpm
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).