efi/unaccepted: Fix off-by-one when checking for overlapping ranges

When a task needs to accept memory it will scan the accepting_list
to see if any ranges already being processed by other tasks overlap
with its range. Due to an off-by-one in the range comparisons, a task
might falsely determine that an overlapping range is being accepted,
leading to an unnecessary delay before it begins processing the range.

Fix the off-by-one in the range comparison to prevent this and slightly
improve performance.

Fixes: 50e782a86c98 ("efi/unaccepted: Fix soft lockups caused by parallel memory acceptance")
Link: https://lore.kernel.org/linux-mm/[email protected]/T/#me2eceb9906fcae5fe958b3fe88e41f920f8335b6
Reviewed-by: Kirill A. Shutemov <[email protected]>
Signed-off-by: Michael Roth <[email protected]>
Acked-by: Vlastimil Babka <[email protected]>
Signed-off-by: Ard Biesheuvel <[email protected]>

0 files changed, 0 insertions, 0 deletions