Revision be8cfc4af15cf611dfeb66a1fb5df43d5f1e280a authored by Mark Salter on 25 September 2012, 00:17:38 UTC, committed by Linus Torvalds on 25 September 2012, 15:59:21 UTC
Commit 1ad75b9e1628 ("c/r: prctl: add minimal address test to
PR_SET_MM") added some address checking to prctl_set_mm() used by
checkpoint-restore. This causes a build error for no-MMU systems:
kernel/sys.c: In function 'prctl_set_mm':
kernel/sys.c:1868:34: error: 'mmap_min_addr' undeclared (first use in this function)
The test for mmap_min_addr doesn't make a lot of sense for no-MMU code
as noted in commit 6e1415467614 ("NOMMU: Optimise away the
{dac_,}mmap_min_addr tests").
This patch defines mmap_min_addr as 0UL in the no-MMU case so that the
compiler will optimize away tests for "addr < mmap_min_addr".
Signed-off-by: Mark Salter <msalter@redhat.com>
Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: <stable@vger.kernel.org> [3.6.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent b5bd6a0
| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 51.4 KB |
| Makefile | -rw-r--r-- | 1.1 KB |
| calibrate.c | -rw-r--r-- | 8.3 KB |
| do_mounts.c | -rw-r--r-- | 12.8 KB |
| do_mounts.h | -rw-r--r-- | 1.4 KB |
| do_mounts_initrd.c | -rw-r--r-- | 3.4 KB |
| do_mounts_md.c | -rw-r--r-- | 8.2 KB |
| do_mounts_rd.c | -rw-r--r-- | 8.4 KB |
| init_task.c | -rw-r--r-- | 668 bytes |
| initramfs.c | -rw-r--r-- | 12.9 KB |
| main.c | -rw-r--r-- | 21.5 KB |
| noinitramfs.c | -rw-r--r-- | 1.5 KB |
| version.c | -rw-r--r-- | 1.1 KB |
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