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> |
||
|---|---|---|
| .. | ||
| Makefile | ||
| asm-offsets.c | ||
| break.S | ||
| cmode.S | ||
| debug-stub.c | ||
| dma.c | ||
| entry-table.S | ||
| entry.S | ||
| frv_ksyms.c | ||
| futex.c | ||
| gdb-io.c | ||
| gdb-io.h | ||
| gdb-stub.c | ||
| head-mmu-fr451.S | ||
| head-uc-fr401.S | ||
| head-uc-fr451.S | ||
| head-uc-fr555.S | ||
| head.S | ||
| head.inc | ||
| init_task.c | ||
| irq-mb93091.c | ||
| irq-mb93093.c | ||
| irq-mb93493.c | ||
| irq.c | ||
| kernel_execve.S | ||
| kernel_thread.S | ||
| local.h | ||
| module.c | ||
| pm-mb93093.c | ||
| pm.c | ||
| process.c | ||
| ptrace.c | ||
| semaphore.c | ||
| setup.c | ||
| signal.c | ||
| sleep.S | ||
| switch_to.S | ||
| sys_frv.c | ||
| sysctl.c | ||
| time.c | ||
| traps.c | ||
| uaccess.c | ||
| vmlinux.lds.S | ||