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| author | James Morris <james.l.morris@oracle.com> | 2014-06-24 18:46:07 +1000 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2014-06-24 18:46:07 +1000 |
| commit | f01387d2693813eb5271a3448e6a082322c7d75d (patch) | |
| tree | b591ca73c85276bae53d7db57ff1565be45a29da /kernel/debug/debug_core.c | |
| parent | 92953ff38ba59b4f7b1a54ab28b84be35fafaecc (diff) | |
| parent | 1860e379875dfe7271c649058aeddffe5afd9d0d (diff) | |
| download | cachepc-linux-f01387d2693813eb5271a3448e6a082322c7d75d.tar.gz cachepc-linux-f01387d2693813eb5271a3448e6a082322c7d75d.zip | |
Merge commit 'v3.15' into next
Diffstat (limited to 'kernel/debug/debug_core.c')
| -rw-r--r-- | kernel/debug/debug_core.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c index 334b3980ffc1..2956c8da1605 100644 --- a/kernel/debug/debug_core.c +++ b/kernel/debug/debug_core.c @@ -49,6 +49,7 @@ #include <linux/pid.h> #include <linux/smp.h> #include <linux/mm.h> +#include <linux/vmacache.h> #include <linux/rcupdate.h> #include <asm/cacheflush.h> @@ -224,10 +225,17 @@ static void kgdb_flush_swbreak_addr(unsigned long addr) if (!CACHE_FLUSH_IS_SAFE) return; - if (current->mm && current->mm->mmap_cache) { - flush_cache_range(current->mm->mmap_cache, - addr, addr + BREAK_INSTR_SIZE); + if (current->mm) { + int i; + + for (i = 0; i < VMACACHE_SIZE; i++) { + if (!current->vmacache[i]) + continue; + flush_cache_range(current->vmacache[i], + addr, addr + BREAK_INSTR_SIZE); + } } + /* Force flush instruction cache if it was outside the mm */ flush_icache_range(addr, addr + BREAK_INSTR_SIZE); } @@ -1035,7 +1043,7 @@ int dbg_io_get_char(void) * otherwise as a quick means to stop program execution and "break" into * the debugger. */ -void kgdb_breakpoint(void) +noinline void kgdb_breakpoint(void) { atomic_inc(&kgdb_setting_breakpoint); wmb(); /* Sync point before breakpoint */ |