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| author | Alexey Dobriyan <adobriyan@gmail.com> | 2022-05-09 18:29:19 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-09 10:23:10 +0200 |
| commit | f588b925915a19473dfce1d0566c387abe5fc8af (patch) | |
| tree | d815ec01594b3d4d6cbee206cb94dc0bababf75c /ipc/mqueue.c | |
| parent | eb610fdf4916e3c08ab7aa2a585e02e74eb07a81 (diff) | |
proc: fix dentry/inode overinstantiating under /proc/${pid}/net
[ Upstream commit 7055197705709c59b8ab77e6a5c7d46d61edd96e ]
When a process exits, /proc/${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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'ipc/mqueue.c')
0 files changed, 0 insertions, 0 deletions