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authorDenis V. Lunev <den@openvz.org>2008-04-29 01:02:26 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-29 08:06:22 -0700
commit667471386d4068e75a6a55b615701ced61eb6333 (patch)
tree2bf51dfa6209ca6637c1cff084b15c132b280ab0 /arch/powerpc/kernel/proc_ppc64.c
parent6f1c86ec315711d21666751b0bdae69ce2c6d589 (diff)
powerpc: use non-racy method for proc entries creation
Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data be setup before gluing PDE to main tree. Add correct ->owner to proc_fops to fix reading/module unloading race. Signed-off-by: Denis V. Lunev <den@openvz.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc/kernel/proc_ppc64.c')
-rw-r--r--arch/powerpc/kernel/proc_ppc64.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/proc_ppc64.c b/arch/powerpc/kernel/proc_ppc64.c
index f78dfce1b771..c647ddef40dc 100644
--- a/arch/powerpc/kernel/proc_ppc64.c
+++ b/arch/powerpc/kernel/proc_ppc64.c
@@ -68,12 +68,11 @@ static int __init proc_ppc64_init(void)
{
struct proc_dir_entry *pde;
- pde = create_proc_entry("ppc64/systemcfg", S_IFREG|S_IRUGO, NULL);
+ pde = proc_create_data("ppc64/systemcfg", S_IFREG|S_IRUGO, NULL,
+ &page_map_fops, vdso_data);
if (!pde)
return 1;
- pde->data = vdso_data;
pde->size = PAGE_SIZE;
- pde->proc_fops = &page_map_fops;
return 0;
}