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Power management fix for 6.6-rc5

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Fix a recently introduced hibernation crash (Pavankumar Kondeti).
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Merge tag 'pm-6.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix a recently introduced hibernation crash (Pavankumar Kondeti)"

* tag 'pm-6.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM: hibernate: Fix copying the zero bitmap to safe pages
This commit is contained in:
Linus Torvalds 2023-10-06 15:49:14 -07:00
commit 82714078ae
1 changed files with 2 additions and 2 deletions
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4
kernel/power/snapshot.c
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@ -2647,7 +2647,7 @@ static int prepare_image(struct memory_bitmap *new_bm, struct memory_bitmap *bm,
memory_bm_free(bm, PG_UNSAFE_KEEP);
/* Make a copy of zero_bm so it can be created in safe pages */
error = memory_bm_create(&tmp, GFP_ATOMIC, PG_ANY);
error = memory_bm_create(&tmp, GFP_ATOMIC, PG_SAFE);
if (error)
goto Free;
@ -2660,7 +2660,7 @@ static int prepare_image(struct memory_bitmap *new_bm, struct memory_bitmap *bm,
goto Free;
duplicate_memory_bitmap(zero_bm, &tmp);
memory_bm_free(&tmp, PG_UNSAFE_KEEP);
memory_bm_free(&tmp, PG_UNSAFE_CLEAR);
/* At this point zero_bm is in safe pages and it can be used for restoring. */
if (nr_highmem > 0) {