Re: [RFC PATCH 1/3] mm: make start_isolate_page_range() fail if already isolated

2018-02-15 Thread Mike Kravetz
On 02/12/2018 02:20 PM, Mike Kravetz wrote: > start_isolate_page_range() is used to set the migrate type of a > page block to MIGRATE_ISOLATE while attempting to start a > migration operation. It is assumed that only one thread is > attempting such an operation, and due to the limited number of >

Re: [RFC PATCH 1/3] mm: make start_isolate_page_range() fail if already isolated

2018-02-13 Thread Mike Rapoport
On Mon, Feb 12, 2018 at 02:20:54PM -0800, Mike Kravetz wrote: > start_isolate_page_range() is used to set the migrate type of a > page block to MIGRATE_ISOLATE while attempting to start a > migration operation. It is assumed that only one thread is > attempting such an operation, and due to the li

[RFC PATCH 1/3] mm: make start_isolate_page_range() fail if already isolated

2018-02-12 Thread Mike Kravetz
start_isolate_page_range() is used to set the migrate type of a page block to MIGRATE_ISOLATE while attempting to start a migration operation. It is assumed that only one thread is attempting such an operation, and due to the limited number of callers this is generally the case. However, there ar