mirror of
https://github.com/torvalds/linux
synced 2024-09-06 18:01:05 +00:00
mm/page_alloc: remove obsolete gfpflags_normal_context()
Since commit dacb5d8875
("tcp: fix page frag corruption on page fault"),
there's no caller of gfpflags_normal_context(). Remove it as this helper
is strictly tied to the sk page frag usage and there won't be other user
in the future.
[linmiaohe@huawei.com: fix htmldocs]
Link: https://lkml.kernel.org/r/1bc55727-9b66-0e9e-c306-f10c4716ea89@huawei.com
Link: https://lkml.kernel.org/r/20220916072257.9639-16-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
parent
896c4d5253
commit
def76fd549
|
@ -19,9 +19,6 @@ User Space Memory Access
|
|||
Memory Allocation Controls
|
||||
==========================
|
||||
|
||||
.. kernel-doc:: include/linux/gfp.h
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: include/linux/gfp_types.h
|
||||
:doc: Page mobility and placement hints
|
||||
|
||||
|
|
|
@ -36,29 +36,6 @@ static inline bool gfpflags_allow_blocking(const gfp_t gfp_flags)
|
|||
return !!(gfp_flags & __GFP_DIRECT_RECLAIM);
|
||||
}
|
||||
|
||||
/**
|
||||
* gfpflags_normal_context - is gfp_flags a normal sleepable context?
|
||||
* @gfp_flags: gfp_flags to test
|
||||
*
|
||||
* Test whether @gfp_flags indicates that the allocation is from the
|
||||
* %current context and allowed to sleep.
|
||||
*
|
||||
* An allocation being allowed to block doesn't mean it owns the %current
|
||||
* context. When direct reclaim path tries to allocate memory, the
|
||||
* allocation context is nested inside whatever %current was doing at the
|
||||
* time of the original allocation. The nested allocation may be allowed
|
||||
* to block but modifying anything %current owns can corrupt the outer
|
||||
* context's expectations.
|
||||
*
|
||||
* %true result from this function indicates that the allocation context
|
||||
* can sleep and use anything that's associated with %current.
|
||||
*/
|
||||
static inline bool gfpflags_normal_context(const gfp_t gfp_flags)
|
||||
{
|
||||
return (gfp_flags & (__GFP_DIRECT_RECLAIM | __GFP_MEMALLOC)) ==
|
||||
__GFP_DIRECT_RECLAIM;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_HIGHMEM
|
||||
#define OPT_ZONE_HIGHMEM ZONE_HIGHMEM
|
||||
#else
|
||||
|
|
Loading…
Reference in a new issue