]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
ksm: remove redundant VM_BUG_ON_PAGE() on stable_tree_search()
authorMiaohe Lin <linmiaohe@huawei.com>
Wed, 5 May 2021 01:37:37 +0000 (18:37 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 5 May 2021 18:27:24 +0000 (11:27 -0700)
commita08e1e11c90f3e6020963b3ad097680768bc8567
treede9aed83ea146a8a1c4f5605a8cffbf17021ae04
parent78fa51503fdbe463c96eef4c3cf69ca54032647a
ksm: remove redundant VM_BUG_ON_PAGE() on stable_tree_search()

Patch series "Cleanup and fixup for ksm".

This series contains cleanups to remove unnecessary VM_BUG_ON_PAGE and
dedicated macro KSM_FLAG_MASK.  Also this fixes potential missing
rmap_item for stable_node which would result in failed rmap_walk_ksm().
More details can be found in the respective changelogs.

This patch (of 4):

The same VM_BUG_ON_PAGE() check is already done in the callee.  Remove
these extra caller one to simplify code slightly.

Link: https://lkml.kernel.org/r/20210330140228.45635-1-linmiaohe@huawei.com
Link: https://lkml.kernel.org/r/20210330140228.45635-2-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/ksm.c