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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-10 16:58:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-10 16:58:42 -0700
commit9967468c0a109644e4a1f5b39b39bf86fe7507a7 (patch)
tree72b7764c6dd6d74ede25688545a2e0c29dde3a2b /kernel/sys.c
parent548aa0e3c516d906dae5edb1fc9a1ad2e490120a (diff)
parentdd83c161fbcc5d8be637ab159c0de015cbff5ba4 (diff)
downloadtalos-op-linux-9967468c0a109644e4a1f5b39b39bf86fe7507a7.tar.gz
talos-op-linux-9967468c0a109644e4a1f5b39b39bf86fe7507a7.zip
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: - most of the rest of MM - KASAN updates - lib/ updates - checkpatch updates - some binfmt_elf changes - various misc bits * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (115 commits) kernel/exit.c: avoid undefined behaviour when calling wait4() kernel/signal.c: avoid undefined behaviour in kill_something_info binfmt_elf: safely increment argv pointers s390: reduce ELF_ET_DYN_BASE powerpc: move ELF_ET_DYN_BASE to 4GB / 4MB arm64: move ELF_ET_DYN_BASE to 4GB / 4MB arm: move ELF_ET_DYN_BASE to 4MB binfmt_elf: use ELF_ET_DYN_BASE only for PIE fs, epoll: short circuit fetching events if thread has been killed checkpatch: improve multi-line alignment test checkpatch: improve macro reuse test checkpatch: change format of --color argument to --color[=WHEN] checkpatch: silence perl 5.26.0 unescaped left brace warnings checkpatch: improve tests for multiple line function definitions checkpatch: remove false warning for commit reference checkpatch: fix stepping through statements with $stat and ctx_statement_block checkpatch: [HLP]LIST_HEAD is also declaration checkpatch: warn when a MAINTAINERS entry isn't [A-Z]:\t checkpatch: improve the unnecessary OOM message test lib/bsearch.c: micro-optimize pivot position calculation ...
Diffstat (limited to 'kernel/sys.c')
-rw-r--r--kernel/sys.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/sys.c b/kernel/sys.c
index 47d901586b4e..73fc0af147d0 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -2360,7 +2360,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
case PR_GET_THP_DISABLE:
if (arg2 || arg3 || arg4 || arg5)
return -EINVAL;
- error = !!(me->mm->def_flags & VM_NOHUGEPAGE);
+ error = !!test_bit(MMF_DISABLE_THP, &me->mm->flags);
break;
case PR_SET_THP_DISABLE:
if (arg3 || arg4 || arg5)
@@ -2368,9 +2368,9 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
if (down_write_killable(&me->mm->mmap_sem))
return -EINTR;
if (arg2)
- me->mm->def_flags |= VM_NOHUGEPAGE;
+ set_bit(MMF_DISABLE_THP, &me->mm->flags);
else
- me->mm->def_flags &= ~VM_NOHUGEPAGE;
+ clear_bit(MMF_DISABLE_THP, &me->mm->flags);
up_write(&me->mm->mmap_sem);
break;
case PR_MPX_ENABLE_MANAGEMENT:
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