| commit | e06689bf57017ac022ccf0f2a5071f760821ce0f | [log] [tgz] |
|---|---|---|
| author | Alexey Dobriyan <adobriyan@gmail.com> | Wed Dec 04 16:49:59 2019 -0800 |
| committer | Linus Torvalds <torvalds@linux-foundation.org> | Wed Dec 04 19:44:11 2019 -0800 |
| tree | aa9df3db0c69d35019a5436fb78e205d53e8e7e3 | |
| parent | 3cde287bb4769fe9dfc9c532ddc88d90e81bc4c5 [diff] |
proc: change ->nlink under proc_subdir_lock Currently gluing PDE into global /proc tree is done under lock, but changing ->nlink is not. Additionally struct proc_dir_entry::nlink is not atomic so updates can be lost. Link: http://lkml.kernel.org/r/20190925202436.GA17388@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>