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authorLinus Torvalds <torvalds@linux-foundation.org>2021-09-08 12:55:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-08 12:55:35 -0700
commit2d338201d5311bcd79d42f66df4cecbcbc5f4f2c (patch)
tree75d87f65c31f4721ba6a5356d2a487af9e2961c3 /mm/compaction.c
parentcc09ee80c3b18ae1a897a30a17fe710b2b2f620a (diff)
parentb285437d1d929785a5bef3603da78d2cd5341893 (diff)
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Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: "147 patches, based on 7d2a07b769330c34b4deabeed939325c77a7ec2f. Subsystems affected by this patch series: mm (memory-hotplug, rmap, ioremap, highmem, cleanups, secretmem, kfence, damon, and vmscan), alpha, percpu, procfs, misc, core-kernel, MAINTAINERS, lib, checkpatch, epoll, init, nilfs2, coredump, fork, pids, criu, kconfig, selftests, ipc, and scripts" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (94 commits) scripts: check_extable: fix typo in user error message mm/workingset: correct kernel-doc notations ipc: replace costly bailout check in sysvipc_find_ipc() selftests/memfd: remove unused variable Kconfig.debug: drop selecting non-existing HARDLOCKUP_DETECTOR_ARCH configs: remove the obsolete CONFIG_INPUT_POLLDEV prctl: allow to setup brk for et_dyn executables pid: cleanup the stale comment mentioning pidmap_init(). kernel/fork.c: unexport get_{mm,task}_exe_file coredump: fix memleak in dump_vma_snapshot() fs/coredump.c: log if a core dump is aborted due to changed file permissions nilfs2: use refcount_dec_and_lock() to fix potential UAF nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group nilfs2: fix memory leak in nilfs_sysfs_delete_##name##_group nilfs2: fix memory leak in nilfs_sysfs_create_##name##_group nilfs2: fix NULL pointer in nilfs_##name##_attr_release nilfs2: fix memory leak in nilfs_sysfs_create_device_group trap: cleanup trap_init() init: move usermodehelper_enable() to populate_rootfs() ...
Diffstat (limited to 'mm/compaction.c')
-rw-r--r--mm/compaction.c20
1 files changed, 7 insertions, 13 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index fa9b2b598eab..bfc93da1c2c7 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -306,16 +306,14 @@ __reset_isolation_pfn(struct zone *zone, unsigned long pfn, bool check_source,
* is necessary for the block to be a migration source/target.
*/
do {
- if (pfn_valid_within(pfn)) {
- if (check_source && PageLRU(page)) {
- clear_pageblock_skip(page);
- return true;
- }
+ if (check_source && PageLRU(page)) {
+ clear_pageblock_skip(page);
+ return true;
+ }
- if (check_target && PageBuddy(page)) {
- clear_pageblock_skip(page);
- return true;
- }
+ if (check_target && PageBuddy(page)) {
+ clear_pageblock_skip(page);
+ return true;
}
page += (1 << PAGE_ALLOC_COSTLY_ORDER);
@@ -585,8 +583,6 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
break;
nr_scanned++;
- if (!pfn_valid_within(blockpfn))
- goto isolate_fail;
/*
* For compound pages such as THP and hugetlbfs, we can save
@@ -885,8 +881,6 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
cond_resched();
}
- if (!pfn_valid_within(low_pfn))
- goto isolate_fail;
nr_scanned++;
page = pfn_to_page(low_pfn);