mm/memcontrol.c: move comments for get_mctgt_type() to proper position
Move the comments for get_mctgt_type() to be before get_mctgt_type() implementation. Link: http://lkml.kernel.org/r/1463644638-7446-1-git-send-email-roy.qing.li@gmail.com Signed-off-by: Li RongQing <roy.qing.li@gmail.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
cbedbac3e6
commit
7cf7806ce1
|
@ -4309,24 +4309,6 @@ static int mem_cgroup_do_precharge(unsigned long count)
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
|
||||||
* get_mctgt_type - get target type of moving charge
|
|
||||||
* @vma: the vma the pte to be checked belongs
|
|
||||||
* @addr: the address corresponding to the pte to be checked
|
|
||||||
* @ptent: the pte to be checked
|
|
||||||
* @target: the pointer the target page or swap ent will be stored(can be NULL)
|
|
||||||
*
|
|
||||||
* Returns
|
|
||||||
* 0(MC_TARGET_NONE): if the pte is not a target for move charge.
|
|
||||||
* 1(MC_TARGET_PAGE): if the page corresponding to this pte is a target for
|
|
||||||
* move charge. if @target is not NULL, the page is stored in target->page
|
|
||||||
* with extra refcnt got(Callers should handle it).
|
|
||||||
* 2(MC_TARGET_SWAP): if the swap entry corresponding to this pte is a
|
|
||||||
* target for charge migration. if @target is not NULL, the entry is stored
|
|
||||||
* in target->ent.
|
|
||||||
*
|
|
||||||
* Called with pte lock held.
|
|
||||||
*/
|
|
||||||
union mc_target {
|
union mc_target {
|
||||||
struct page *page;
|
struct page *page;
|
||||||
swp_entry_t ent;
|
swp_entry_t ent;
|
||||||
|
@ -4515,6 +4497,25 @@ out:
|
||||||
return ret;
|
return ret;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* get_mctgt_type - get target type of moving charge
|
||||||
|
* @vma: the vma the pte to be checked belongs
|
||||||
|
* @addr: the address corresponding to the pte to be checked
|
||||||
|
* @ptent: the pte to be checked
|
||||||
|
* @target: the pointer the target page or swap ent will be stored(can be NULL)
|
||||||
|
*
|
||||||
|
* Returns
|
||||||
|
* 0(MC_TARGET_NONE): if the pte is not a target for move charge.
|
||||||
|
* 1(MC_TARGET_PAGE): if the page corresponding to this pte is a target for
|
||||||
|
* move charge. if @target is not NULL, the page is stored in target->page
|
||||||
|
* with extra refcnt got(Callers should handle it).
|
||||||
|
* 2(MC_TARGET_SWAP): if the swap entry corresponding to this pte is a
|
||||||
|
* target for charge migration. if @target is not NULL, the entry is stored
|
||||||
|
* in target->ent.
|
||||||
|
*
|
||||||
|
* Called with pte lock held.
|
||||||
|
*/
|
||||||
|
|
||||||
static enum mc_target_type get_mctgt_type(struct vm_area_struct *vma,
|
static enum mc_target_type get_mctgt_type(struct vm_area_struct *vma,
|
||||||
unsigned long addr, pte_t ptent, union mc_target *target)
|
unsigned long addr, pte_t ptent, union mc_target *target)
|
||||||
{
|
{
|
||||||
|
|
Loading…
Reference in a new issue