| commit | 63e087ffb8251bf64f6a20cfd068ce9e1ea305f5 | [log] [tgz] |
|---|---|---|
| author | Andrea Arcangeli <aarcange@redhat.com> | Fri Jan 15 21:18:22 2021 -0500 |
| committer | Andrea Arcangeli <aarcange@redhat.com> | Sat Nov 11 22:03:35 2023 -0500 |
| tree | ce0fba54d413acf547fcb668560b2e11c4fbe066 | |
| parent | 66d4d61c618297c722c15f9c7f37b0387c058ebf [diff] |
mm: gup: COR: copy-on-read fault COR is a new type of page fault that generates readonly anonymous memory and its only purpose is to allow the unsharing of write-protected COW shared pages, while still maintaining their write protection. It is only meant to be used within GUP and it can be invoked through the FAULT_FLAG_UNSHARE flag. Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>