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| author | Bernhard Walle <bwalle@suse.de> | 2008-02-07 00:15:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-07 08:42:25 -0800 |
| commit | 72a7fe3967dbf86cb34e24fbf1d957fe24d2f246 (patch) | |
| tree | c19f7d0b530577359840e959cce204939caf0649 /arch/h8300 | |
| parent | 25fad945a7f7ff2cf06e437381c6a1121784dbd9 (diff) | |
| download | linux-72a7fe3967dbf86cb34e24fbf1d957fe24d2f246.tar.gz | |
Introduce flags for reserve_bootmem()
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>
Diffstat (limited to 'arch/h8300')
| -rw-r--r-- | arch/h8300/kernel/setup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c index b2e86d0255e6..cd3734614d9d 100644 --- a/arch/h8300/kernel/setup.c +++ b/arch/h8300/kernel/setup.c @@ -173,7 +173,7 @@ void __init setup_arch(char **cmdline_p) * the bootmem bitmap so we then reserve it after freeing it :-) */ free_bootmem(memory_start, memory_end - memory_start); - reserve_bootmem(memory_start, bootmap_size); + reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT); /* * get kmalloc into gear */ |