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| author |   Amir Vadai <amirv@mellanox.com> | 2014-08-25 16:06:52 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-08-25 15:42:19 -0700 |
| commit | b3292e88e33677a90c18236fd895ace2d80efa3c (patch) | |
| tree | 9ee265c2a402a693c01cdac53b7845a200117f65 | |
| parent | stmmac: simple cleanups (diff) | |
| download | linux-dev-b3292e88e33677a90c18236fd895ace2d80efa3c.tar.xz linux-dev-b3292e88e33677a90c18236fd895ace2d80efa3c.zip | |
crash_dump: Make is_kdump_kernel() accessible from modules
In order to make is_kdump_kernel() accessible from modules, need to
make elfcorehdr_addr exported.
This was rejected in the past [1] because reset_devices was prefered in
that context (reseting the device in kdump kernel), but now there are
some network drivers that need to reduce memory usage when loaded from
a kdump kernel. And in that context, is_kdump_kernel() suits better.
[1] - https://lkml.org/lkml/2011/1/27/341
CC: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | kernel/crash_dump.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/crash_dump.c b/kernel/crash_dump.c index c766ee54c0b1..b64e238b553b 100644 --- a/kernel/crash_dump.c +++ b/kernel/crash_dump.c @@ -18,6 +18,7 @@ unsigned long saved_max_pfn; * it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE. */ unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX; +EXPORT_SYMBOL_GPL(elfcorehdr_addr); /* * stores the size of elf header of crash image |