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authorGeliang Tang <geliangtang@163.com>2015-10-20 00:39:03 -0700
committerTony Luck <tony.luck@intel.com>2015-10-22 08:59:18 -0700
commitee1d267423a1f8041e2b1a33fc23e4393c67677e (patch)
treeb53cdedcdc8f6a7b36f0342814b91005ce4955ea /kernel/printk
parent1873041152d2e324e25ddeec5541b90c22c2dc0f (diff)
downloadop-kernel-dev-ee1d267423a1f8041e2b1a33fc23e4393c67677e.zip
op-kernel-dev-ee1d267423a1f8041e2b1a33fc23e4393c67677e.tar.gz
pstore: add pstore unregister
pstore doesn't support unregistering yet. It was marked as TODO. This patch adds some code to fix it: 1) Add functions to unregister kmsg/console/ftrace/pmsg. 2) Add a function to free compression buffer. 3) Unmap the memory and free it. 4) Add a function to unregister pstore filesystem. Signed-off-by: Geliang Tang <geliangtang@163.com> Acked-by: Kees Cook <keescook@chromium.org> [Removed __exit annotation from ramoops_remove(). Reported by Arnd Bergmann] Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'kernel/printk')
-rw-r--r--kernel/printk/printk.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 8f0324e..b16f354 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -517,6 +517,7 @@ int check_syslog_permissions(int type, int source)
ok:
return security_syslog(type);
}
+EXPORT_SYMBOL_GPL(check_syslog_permissions);
static void append_char(char **pp, char *e, char c)
{
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