diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 10 | ||||
| -rw-r--r-- | lib/bitmap.c | 16 | ||||
| -rw-r--r-- | lib/kernel_lock.c | 2 | ||||
| -rw-r--r-- | lib/reed_solomon/reed_solomon.c | 1 |
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); |