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| author | Alexey Dobriyan <adobriyan@gmail.com> | 2009-02-20 17:04:33 +0300 |
|---|---|---|
| committer | Alexey Dobriyan <adobriyan@gmail.com> | 2009-03-31 01:14:27 +0400 |
| commit | 3dec7f59c370c7b58184d63293c3dc984d475840 (patch) | |
| tree | 54df7ab53c1f625179e2b69c78b782b5a867363e /fs/proc/proc_tty.c | |
| parent | 09729a9919fdaf137995b0f19cbd401e22229cac (diff) | |
| download | op-kernel-dev-3dec7f59c370c7b58184d63293c3dc984d475840.zip op-kernel-dev-3dec7f59c370c7b58184d63293c3dc984d475840.tar.gz | |
proc 1/2: do PDE usecounting even for ->read_proc, ->write_proc
struct proc_dir_entry::owner is going to be removed. Now it's only necessary
to protect PDEs which are using ->read_proc, ->write_proc hooks.
However, ->owner assignments are racy and make it very easy for someone to switch
->owner on live PDE (as some subsystems do) without fixing refcounts and so on.
http://bugzilla.kernel.org/show_bug.cgi?id=12454
So, ->owner is on death row.
Proxy file operations exist already (proc_file_operations), just bump usecount
when necessary.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Diffstat (limited to 'fs/proc/proc_tty.c')
0 files changed, 0 insertions, 0 deletions
