Commit 7c8de358 authored by Ethon Paul's avatar Ethon Paul Committed by Linus Torvalds
Browse files

mm/hugetlb: fix a typos in comments 



[akpm@linux-foundation.org: coding style fixes]
Signed-off-by: default avatarEthon Paul <ethp@qq.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Reviewed-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Reviewed-by: default avatarRalph Campbell <rcampbell@nvidia.com>
Link: http://lkml.kernel.org/r/20200410163714.14085-1-ethp@qq.com


Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b4f315b4

mm/hugetlb.c

+8 −8
Original line number Diff line number Diff line
@@ -85,7 +85,7 @@ static inline void unlock_or_release_subpool(struct hugepage_subpool *spool) 
	spin_unlock(&spool->lock);



	/* If no pages are used, and no other handles to the subpool

	 * remain, give up any reservations mased on minimum size and

	 * remain, give up any reservations based on minimum size and

	 * free the subpool */

	if (free) {

		if (spool->min_hpages != -1)
@@ -133,7 +133,7 @@ void hugepage_put_subpool(struct hugepage_subpool *spool) 
 * the request.  Otherwise, return the number of pages by which the

 * global pools must be adjusted (upward).  The returned value may

 * only be different than the passed value (delta) in the case where

 * a subpool minimum size must be manitained.

 * a subpool minimum size must be maintained.

 */

static long hugepage_subpool_get_pages(struct hugepage_subpool *spool,

				      long delta)
@@ -473,7 +473,7 @@ static int allocate_file_region_entries(struct resv_map *resv, 
 *

 * Return the number of new huge pages added to the map.  This number is greater

 * than or equal to zero.  If file_region entries needed to be allocated for

 * this operation and we were not able to allocate, it ruturns -ENOMEM.

 * this operation and we were not able to allocate, it returns -ENOMEM.

 * region_add of regions of length 1 never allocate file_regions and cannot

 * fail; region_chg will always allocate at least 1 entry and a region_add for

 * 1 page will only require at most 1 entry.
@@ -988,7 +988,7 @@ static bool vma_has_reserves(struct vm_area_struct *vma, long chg) 
		 * We know VM_NORESERVE is not set.  Therefore, there SHOULD

		 * be a region map for all pages.  The only situation where

		 * there is no region map is if a hole was punched via

		 * fallocate.  In this case, there really are no reverves to

		 * fallocate.  In this case, there really are no reserves to

		 * use.  This situation is indicated if chg != 0.

		 */

		if (chg)
@@ -1519,7 +1519,7 @@ static void prep_compound_gigantic_page(struct page *page, unsigned int order) 
		 * For gigantic hugepages allocated through bootmem at

		 * boot, it's safer to be consistent with the not-gigantic

		 * hugepages and clear the PG_reserved bit from all tail pages

		 * too.  Otherwse drivers using get_user_pages() to access tail

		 * too.  Otherwise drivers using get_user_pages() to access tail

		 * pages may get the reference counting wrong if they see

		 * PG_reserved set on a tail page (despite the head page not

		 * having PG_reserved set).  Enforcing this consistency between
@@ -4579,9 +4579,9 @@ vm_fault_t hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, 
	/*

	 * entry could be a migration/hwpoison entry at this point, so this

	 * check prevents the kernel from going below assuming that we have

	 * a active hugepage in pagecache. This goto expects the 2nd page fault,

	 * and is_hugetlb_entry_(migration|hwpoisoned) check will properly

	 * handle it.

	 * an active hugepage in pagecache. This goto expects the 2nd page

	 * fault, and is_hugetlb_entry_(migration|hwpoisoned) check will

	 * properly handle it.

	 */

	if (!pte_present(entry))

		goto out_mutex;