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-rw-r--r--lib/Kconfig.debug10
-rw-r--r--lib/bitmap.c16
-rw-r--r--lib/kernel_lock.c2
-rw-r--r--lib/reed_solomon/reed_solomon.c1
4 files changed, 27 insertions, 2 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 95de3102bc87..623ef24c2381 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -427,6 +427,16 @@ config DEBUG_VM
If unsure, say N.
+config DEBUG_WRITECOUNT
+ bool "Debug filesystem writers count"
+ depends on DEBUG_KERNEL
+ help
+ Enable this to catch wrong use of the writers count in struct
+ vfsmount. This will increase the size of each file struct by
+ 32 bits.
+
+ If unsure, say N.
+
config DEBUG_LIST
bool "Debug linked list manipulation"
depends on DEBUG_KERNEL
diff --git a/lib/bitmap.c b/lib/bitmap.c
index 2c9242e3fed0..a6939e18d7bb 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -316,6 +316,22 @@ int bitmap_scnprintf(char *buf, unsigned int buflen,
EXPORT_SYMBOL(bitmap_scnprintf);
/**
+ * bitmap_scnprintf_len - return buffer length needed to convert
+ * bitmap to an ASCII hex string.
+ * @len: number of bits to be converted
+ */
+int bitmap_scnprintf_len(unsigned int len)
+{
+ /* we need 9 chars per word for 32 bit words (8 hexdigits + sep/null) */
+ int bitslen = ALIGN(len, CHUNKSZ);
+ int wordlen = CHUNKSZ / 4;
+ int buflen = (bitslen / wordlen) * (wordlen + 1) * sizeof(char);
+
+ return buflen;
+}
+EXPORT_SYMBOL(bitmap_scnprintf_len);
+
+/**
* __bitmap_parse - convert an ASCII hex string into a bitmap.
* @buf: pointer to buffer containing string.
* @buflen: buffer size in bytes. If string is smaller than this
diff --git a/lib/kernel_lock.c b/lib/kernel_lock.c
index fbc11a336bc5..cd3e82530b03 100644
--- a/lib/kernel_lock.c
+++ b/lib/kernel_lock.c
@@ -8,7 +8,7 @@
#include <linux/smp_lock.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
-#include <asm/semaphore.h>
+#include <linux/semaphore.h>
/*
* The 'big kernel semaphore'
diff --git a/lib/reed_solomon/reed_solomon.c b/lib/reed_solomon/reed_solomon.c
index 3ea2db94d5b0..06d04cfa9339 100644
--- a/lib/reed_solomon/reed_solomon.c
+++ b/lib/reed_solomon/reed_solomon.c
@@ -45,7 +45,6 @@
#include <linux/rslib.h>
#include <linux/slab.h>
#include <linux/mutex.h>
-#include <asm/semaphore.h>
/* This list holds all currently allocated rs control structures */
static LIST_HEAD (rslist);