Re: [PATCH] binder: take read mode of mmap_sem in binder_alloc_free_page()

On Fri, Apr 12, 2019 at 2:59 PM Tyler Hicks wrote: > > Restore the behavior of locking mmap_sem for reading in > binder_alloc_free_page(), as was first done in commit 3013bf62b67a > ("binder: reduce mmap_sem write-side lock"). That change was > inadvertently reverted by commit 5cec2d2e5839 ("binde

[PATCH] binder: take read mode of mmap_sem in binder_alloc_free_page()

Restore the behavior of locking mmap_sem for reading in binder_alloc_free_page(), as was first done in commit 3013bf62b67a ("binder: reduce mmap_sem write-side lock"). That change was inadvertently reverted by commit 5cec2d2e5839 ("binder: fix race between munmap() and direct reclaim"). In additio