diff options
| author | Ingo Molnar <mingo@kernel.org> | 2019-06-03 11:56:35 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-06-03 11:56:35 +0200 |
| commit | f7b6a8b30cedaa64ba18d80f1fb3404274281639 (patch) | |
| tree | 13937ba94eed328bb19b1ccf343cca35446b878b /mm/util.c | |
| parent | b33fb3cf6f5e039dea4a85a708a2c86f8a323575 (diff) | |
| parent | f2c7c76c5d0a443053e94adb9f0918fa2fb85c3a (diff) | |
Merge tag 'v5.2-rc3' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/util.c')
| -rw-r--r-- | mm/util.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/util.c b/mm/util.c index e2e4f8c3fa12a..9834c4ab7d8e8 100644 --- a/mm/util.c +++ b/mm/util.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only #include <linux/mm.h> #include <linux/slab.h> #include <linux/string.h> @@ -717,12 +718,12 @@ int get_cmdline(struct task_struct *task, char *buffer, int buflen) if (!mm->arg_end) goto out_mm; /* Shh! No looking before we're done */ - down_read(&mm->mmap_sem); + spin_lock(&mm->arg_lock); arg_start = mm->arg_start; arg_end = mm->arg_end; env_start = mm->env_start; env_end = mm->env_end; - up_read(&mm->mmap_sem); + spin_unlock(&mm->arg_lock); len = arg_end - arg_start; |