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| author |   Alexey Dobriyan <adobriyan@gmail.com> | 2022-05-09 18:29:19 -0700 |
|---|---|---|
| committer |   akpm <akpm@linux-foundation.org> | 2022-05-09 18:29:19 -0700 |
| commit | 7055197705709c59b8ab77e6a5c7d46d61edd96e (patch) | |
| tree | 4040061d0b55c45fbd02389c9f354a0b6ced1864 /ipc | |
| parent | fs: sysv: check sbi->s_firstdatazone in complete_read_super (diff) | |
| download | linux-dev-7055197705709c59b8ab77e6a5c7d46d61edd96e.tar.xz linux-dev-7055197705709c59b8ab77e6a5c7d46d61edd96e.zip | |
proc: fix dentry/inode overinstantiating under /proc/${pid}/net
When a process exits, /proc/${pid}, and /proc/${pid}/net dentries are
flushed. However some leaf dentries like /proc/${pid}/net/arp_cache
aren't. That's because respective PDEs have proc_misc_d_revalidate() hook
which returns 1 and leaves dentries/inodes in the LRU.
Force revalidation/lookup on everything under /proc/${pid}/net by
inheriting proc_net_dentry_ops.
[akpm@linux-foundation.org: coding-style cleanups]
Link: https://lkml.kernel.org/r/YjdVHgildbWO7diJ@localhost.localdomain
Fixes: c6c75deda813 ("proc: fix lookup in /proc/net subdirectories after setns(2)")
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reported-by: hui li <juanfengpy@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'ipc')
0 files changed, 0 insertions, 0 deletions