diff options
| author | Sourabh Jain <sourabhjain@linux.ibm.com> | 2023-07-04 10:37:15 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-09-23 10:59:47 +0200 |
| commit | 81d1de3b979351d97a2c711a17a221d2a9fa98f0 (patch) | |
| tree | 74c97a0d54c33f50eca435a9f28f310ff7faf6f6 /arch/powerpc | |
| parent | 7159a27b1ac18a372e165cd900b7e6c821bebef2 (diff) | |
powerpc/fadump: reset dump area size if fadump memory reserve fails
[ Upstream commit d1eb75e0dfed80d2d85b664e28a39f65b290ab55 ]
In case fadump_reserve_mem() fails to reserve memory, the
reserve_dump_area_size variable will retain the reserve area size. This
will lead to /sys/kernel/fadump/mem_reserved node displaying an incorrect
memory reserved by fadump.
To fix this problem, reserve dump area size variable is set to 0 if fadump
failed to reserve memory.
Fixes: 8255da95e545 ("powerpc/fadump: release all the memory above boot memory size")
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Acked-by: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230704050715.203581-1-sourabhjain@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/fadump.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index 69d64f406204..15405db43141 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -629,6 +629,7 @@ int __init fadump_reserve_mem(void) return ret; error_out: fw_dump.fadump_enabled = 0; + fw_dump.reserve_dump_area_size = 0; return 0; } |