diff options
| author | Tiwei Bie <[email protected]> | 2024-10-11 18:23:53 +0800 |
|---|---|---|
| committer | Johannes Berg <[email protected]> | 2024-10-23 09:52:49 +0200 |
| commit | 2717c6b649e1840328c2758a478bf4034a22ac3e (patch) | |
| tree | e25a72d6d3a34140f62d645ba72c6ae78cbedb65 /arch/um/include/asm/pgtable-4level.h | |
| parent | 90daca7c8f6f33e9482591446d2e76b18a21be49 (diff) | |
um: Abandon the _PAGE_NEWPROT bit
When a PTE is updated in the page table, the _PAGE_NEWPAGE bit will
always be set. And the corresponding page will always be mapped or
unmapped depending on whether the PTE is present or not. The check
on the _PAGE_NEWPROT bit is not really reachable. Abandoning it will
allow us to simplify the code and remove the unreachable code.
Reviewed-by: Benjamin Berg <[email protected]>
Signed-off-by: Tiwei Bie <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Johannes Berg <[email protected]>
Diffstat (limited to 'arch/um/include/asm/pgtable-4level.h')
0 files changed, 0 insertions, 0 deletions