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authorAlexey Dobriyan <adobriyan@sw.ru>2007-05-08 00:28:47 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 11:15:08 -0700
commita5c43dae7ae38c2a6b3e9a819bcf45f010bf6a4a (patch)
treeb30da7a4541e803e35a6a74ad33e836442c3f6c8 /mm/slab.c
parent9d65cb4a1718a072898c7a57a3bc61b2dc4bcd4d (diff)
downloadop-kernel-dev-a5c43dae7ae38c2a6b3e9a819bcf45f010bf6a4a.zip
op-kernel-dev-a5c43dae7ae38c2a6b3e9a819bcf45f010bf6a4a.tar.gz
Fix race between cat /proc/slab_allocators and rmmod
Same story as with cat /proc/*/wchan race vs rmmod race, only /proc/slab_allocators want more info than just symbol name. Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/slab.c')
-rw-r--r--mm/slab.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/mm/slab.c b/mm/slab.c
index 1115e20..acda7e2 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -4432,16 +4432,12 @@ static void handle_slab(unsigned long *n, struct kmem_cache *c, struct slab *s)
static void show_symbol(struct seq_file *m, unsigned long address)
{
#ifdef CONFIG_KALLSYMS
- char *modname;
- const char *name;
unsigned long offset, size;
- char namebuf[KSYM_NAME_LEN+1];
-
- name = kallsyms_lookup(address, &size, &offset, &modname, namebuf);
+ char modname[MODULE_NAME_LEN + 1], name[KSYM_NAME_LEN + 1];
- if (name) {
+ if (lookup_symbol_attrs(address, &size, &offset, modname, name) == 0) {
seq_printf(m, "%s+%#lx/%#lx", name, offset, size);
- if (modname)
+ if (modname[0])
seq_printf(m, " [%s]", modname);
return;
}
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