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| author | Sourabh Jain <sourabhjain@linux.ibm.com> | 2023-07-04 08:07:15 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-09-19 13:20:15 +0300 |
| commit | d45bf1528b7c34a8cf918460acfbd3f695dea150 (patch) | |
| tree | 7d60ce1ada2be17b41f6eab7a8149817db5c00c6 /arch/powerpc | |
| parent | ad83d83dd891244de0d07678b257dc976db7c132 (diff) | |
| download | linux-d45bf1528b7c34a8cf918460acfbd3f695dea150.tar.xz | |
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 1a5ba26aab15..935ce1bec43f 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -642,6 +642,7 @@ int __init fadump_reserve_mem(void) return ret; error_out: fw_dump.fadump_enabled = 0; + fw_dump.reserve_dump_area_size = 0; return 0; } |