Btrfs: Show discard option in /proc/mounts

[safe/jmp/linux-2.6] / fs / proc / page.c

diff --git a/fs/proc/page.c b/fs/proc/page.c
index 2707c6c..5033ce0 100644 (file)
--- a/fs/proc/page.c
+++ b/fs/proc/page.c
@@ -2,6 +2,7 @@
 #include <linux/compiler.h>
 #include <linux/fs.h>
 #include <linux/init.h>
+#include <linux/ksm.h>
 #include <linux/mm.h>
 #include <linux/mmzone.h>
 #include <linux/proc_fs.h>
@@ -93,8 +94,11 @@ static const struct file_operations proc_kpagecount_operations = {
 #define KPF_COMPOUND_TAIL      16
 #define KPF_HUGE               17
 #define KPF_UNEVICTABLE                18
+#define KPF_HWPOISON           19
 #define KPF_NOPAGE             20
 
+#define KPF_KSM                        21
+
 /* kernel hacking assistances
  * WARNING: subject to change, never rely on them!
  */
@@ -137,6 +141,8 @@ static u64 get_uflags(struct page *page)
                u |= 1 << KPF_MMAP;
        if (PageAnon(page))
                u |= 1 << KPF_ANON;
+       if (PageKsm(page))
+               u |= 1 << KPF_KSM;
 
        /*
         * compound pages: export both head/tail info
@@ -175,6 +181,10 @@ static u64 get_uflags(struct page *page)
        u |= kpf_copy_bit(k, KPF_UNEVICTABLE,   PG_unevictable);
        u |= kpf_copy_bit(k, KPF_MLOCKED,       PG_mlocked);
 
+#ifdef CONFIG_MEMORY_FAILURE
+       u |= kpf_copy_bit(k, KPF_HWPOISON,      PG_hwpoison);
+#endif
+
 #ifdef CONFIG_IA64_UNCACHED_ALLOCATOR
        u |= kpf_copy_bit(k, KPF_UNCACHED,      PG_uncached);
 #endif