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-rw-r--r--mm/mmap.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/mm/mmap.c b/mm/mmap.c
index fba246b8f1a5..b9274a0c82c9 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -66,7 +66,7 @@ const int mmap_rnd_compat_bits_max = CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX;
int mmap_rnd_compat_bits __read_mostly = CONFIG_ARCH_MMAP_RND_COMPAT_BITS;
#endif
-static bool ignore_rlimit_data = true;
+static bool ignore_rlimit_data;
core_param(ignore_rlimit_data, ignore_rlimit_data, bool, 0644);
static void unmap_region(struct mm_struct *mm,
@@ -2886,13 +2886,17 @@ bool may_expand_vm(struct mm_struct *mm, vm_flags_t flags, unsigned long npages)
if (is_data_mapping(flags) &&
mm->data_vm + npages > rlimit(RLIMIT_DATA) >> PAGE_SHIFT) {
- if (ignore_rlimit_data)
- pr_warn_once("%s (%d): VmData %lu exceed data ulimit %lu. Will be forbidden soon.\n",
+ /* Workaround for Valgrind */
+ if (rlimit(RLIMIT_DATA) == 0 &&
+ mm->data_vm + npages <= rlimit_max(RLIMIT_DATA) >> PAGE_SHIFT)
+ return true;
+ if (!ignore_rlimit_data) {
+ pr_warn_once("%s (%d): VmData %lu exceed data ulimit %lu. Update limits or use boot option ignore_rlimit_data.\n",
current->comm, current->pid,
(mm->data_vm + npages) << PAGE_SHIFT,
rlimit(RLIMIT_DATA));
- else
return false;
+ }
}
return true;