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| author | Tejun Heo <tj@kernel.org> | 2009-07-04 00:13:18 +0200 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2009-07-04 00:13:18 +0200 |
| commit | c43768cbb7655ea5ff782ae250f6e2ef4297cf98 (patch) | |
| tree | 3982e41dde3eecaa3739a5d1a8ed18d04bd74f01 /lib | |
| parent | percpu: use __weak only in the definition of weak percpu variables (diff) | |
| parent | Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify (diff) | |
| download | linux-c43768cbb7655ea5ff782ae250f6e2ef4297cf98.tar.xz linux-c43768cbb7655ea5ff782ae250f6e2ef4297cf98.zip | |
Merge branch 'master' into for-next
Pull linus#master to merge PER_CPU_DEF_ATTRIBUTES and alpha build fix
changes. As alpha in percpu tree uses 'weak' attribute instead of
inline assembly, there's no need for __used attribute.
Conflicts:
arch/alpha/include/asm/percpu.h
arch/mn10300/kernel/vmlinux.lds.S
include/linux/percpu-defs.h
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 17 | ||||
| -rw-r--r-- | lib/checksum.c | 10 |
2 files changed, 24 insertions, 3 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 77e0d8b1b7c5..43173c4e0ade 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -340,8 +340,6 @@ config DEBUG_KMEMLEAK bool "Kernel memory leak detector" depends on DEBUG_KERNEL && EXPERIMENTAL && (X86 || ARM) && \ !MEMORY_HOTPLUG - select DEBUG_SLAB if SLAB - select SLUB_DEBUG if SLUB select DEBUG_FS if SYSFS select STACKTRACE if STACKTRACE_SUPPORT select KALLSYMS @@ -355,9 +353,24 @@ config DEBUG_KMEMLEAK allocations. See Documentation/kmemleak.txt for more details. + Enabling DEBUG_SLAB or SLUB_DEBUG may increase the chances + of finding leaks due to the slab objects poisoning. + In order to access the kmemleak file, debugfs needs to be mounted (usually at /sys/kernel/debug). +config DEBUG_KMEMLEAK_EARLY_LOG_SIZE + int "Maximum kmemleak early log entries" + depends on DEBUG_KMEMLEAK + range 200 2000 + default 400 + help + Kmemleak must track all the memory allocations to avoid + reporting false positives. Since memory may be allocated or + freed before kmemleak is initialised, an early log buffer is + used to store these actions. If kmemleak reports "early log + buffer exceeded", please increase this value. + config DEBUG_KMEMLEAK_TEST tristate "Simple test for the kernel memory leak detector" depends on DEBUG_KMEMLEAK diff --git a/lib/checksum.c b/lib/checksum.c index 12e5a1c91cda..b2e2fd468461 100644 --- a/lib/checksum.c +++ b/lib/checksum.c @@ -55,7 +55,11 @@ static unsigned int do_csum(const unsigned char *buff, int len) goto out; odd = 1 & (unsigned long) buff; if (odd) { +#ifdef __LITTLE_ENDIAN result = *buff; +#else + result += (*buff << 8); +#endif len--; buff++; } @@ -71,7 +75,7 @@ static unsigned int do_csum(const unsigned char *buff, int len) if (count) { unsigned long carry = 0; do { - unsigned long w = *(unsigned long *) buff; + unsigned long w = *(unsigned int *) buff; count--; buff += 4; result += carry; @@ -87,7 +91,11 @@ static unsigned int do_csum(const unsigned char *buff, int len) } } if (len & 1) +#ifdef __LITTLE_ENDIAN + result += *buff; +#else result += (*buff << 8); +#endif result = from32to16(result); if (odd) result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); |