72a7fe3967
This patchset adds a flags variable to reserve_bootmem() and uses the BOOTMEM_EXCLUSIVE flag in crashkernel reservation code to detect collisions between crashkernel area and already used memory. This patch: Change the reserve_bootmem() function to accept a new flag BOOTMEM_EXCLUSIVE. If that flag is set, the function returns with -EBUSY if the memory already has been reserved in the past. This is to avoid conflicts. Because that code runs before SMP initialisation, there's no race condition inside reserve_bootmem_core(). [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: fix powerpc build] Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: <linux-arch@vger.kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|---|---|---|
| .. | ||
| asm-offsets.c | ||
| entry.S | ||
| gpio.c | ||
| h8300_ksyms.c | ||
| init_task.c | ||
| irq.c | ||
| Makefile | ||
| module.c | ||
| process.c | ||
| ptrace.c | ||
| semaphore.c | ||
| setup.c | ||
| signal.c | ||
| sys_h8300.c | ||
| syscalls.S | ||
| time.c | ||
| traps.c | ||
| vmlinux.lds.S | ||