AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

powerpc/fadump: Account for memory_limit while reserving memory

Browse Source 
If the memory chunk found for reserving memory overshoots the memory
limit imposed, do not proceed with reserving memory. Default behavior
was this until commit 140777a3d8 ("powerpc/fadump: consider reserved
ranges while reserving memory") changed it unwittingly.

Fixes: 140777a3d8 ("powerpc/fadump: consider reserved ranges while reserving memory")
Cc: stable@vger.kernel.org
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/159057266320.22331.6571453892066907320.stgit@hbathini.in.ibm.com
This commit is contained in:
Hari Bathini 2020-05-27 15:14:35 +05:30 committed by Michael Ellerman
parent be5470e0c2
commit 9a2921e5ba
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/powerpc/kernel/fadump.c
View File

@ -603,7 +603,7 @@ int __init fadump_reserve_mem(void)
*/
base = fadump_locate_reserve_mem(base, size);
if (!base) {
if (!base || (base + size > mem_boundary)) {
pr_err("Failed to find memory chunk for reservation!\n");
goto error_out;
}