diff options
| author | Alexey Dobriyan <[email protected]> | 2022-07-23 17:09:07 +0000 |
|---|---|---|
| committer | akpm <[email protected]> | 2022-07-30 01:12:35 +0000 |
| commit | ed8fb78d7ecdeb3e2e86df0027e2c2cc55f9908b (patch) | |
| tree | 7f920e6a5a183ce4b9c4ab5df660fb08ae64541e /fs/proc/proc_net.c | |
| parent | bdi: remove enum wb_congested_state (diff) | |
| download | kernel-ed8fb78d7ecdeb3e2e86df0027e2c2cc55f9908b.tar.gz kernel-ed8fb78d7ecdeb3e2e86df0027e2c2cc55f9908b.zip | |
proc: add some (hopefully) insightful comments
* /proc/${pid}/net status
* removing PDE vs last close stuff (again!)
* random small stuff
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Alexey Dobriyan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'fs/proc/proc_net.c')
| -rw-r--r-- | fs/proc/proc_net.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c index bbce6fbe779c..856839b8ae8b 100644 --- a/fs/proc/proc_net.c +++ b/fs/proc/proc_net.c @@ -350,6 +350,12 @@ static __net_init int proc_net_ns_init(struct net *net) kgid_t gid; int err; + /* + * This PDE acts only as an anchor for /proc/${pid}/net hierarchy. + * Corresponding inode (PDE(inode) == net->proc_net) is never + * instantiated therefore blanket zeroing is fine. + * net->proc_net_stat inode is instantiated normally. + */ err = -ENOMEM; netd = kmem_cache_zalloc(proc_dir_entry_cache, GFP_KERNEL); if (!netd) |