diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2023-09-20 00:12:00 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2024-02-25 02:10:32 -0500 |
| commit | e31f0a57ae1ab2f6e17adb8e602bc120ad722232 (patch) | |
| tree | 7b8fa35282a310a6ead52901ede07fdbabc01723 /fs/proc | |
| parent | 47458802f6606f652cd0f6dc38cd52ce60ec0145 (diff) | |
procfs: make freeing proc_fs_info rcu-delayed
makes proc_pid_ns() safe from rcu pathwalk (put_pid_ns()
is still synchronous, but that's not a problem - it does
rcu-delay everything that needs to be)
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/root.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/proc/root.c b/fs/proc/root.c index b55dbc70287b..06a297a27ba3 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -271,7 +271,7 @@ static void proc_kill_sb(struct super_block *sb) kill_anon_super(sb); put_pid_ns(fs_info->pid_ns); - kfree(fs_info); + kfree_rcu(fs_info, rcu); } static struct file_system_type proc_fs_type = { |