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| author | Heiko Carstens <hca@linux.ibm.com> | 2020-09-18 13:25:37 +0300 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2020-11-09 13:20:59 +0300 |
| commit | 90178c1900798633dd0c83ab693254b8705177c5 (patch) | |
| tree | 9291373dab2e461d40de985a8dd19eff9a3383c1 /arch/s390/boot/ipl_parm.c | |
| parent | fc67c880e32a85786ad32129faa880f57bb6de41 (diff) | |
| download | linux-90178c1900798633dd0c83ab693254b8705177c5.tar.xz | |
s390/mm: let vmalloc area size depend on physical memory size
To make sure that the vmalloc area size is for almost all cases large
enough let it depend on the (potential) physical memory size. There is
still the possibility to override this with the vmalloc kernel command
line parameter.
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/boot/ipl_parm.c')
| -rw-r--r-- | arch/s390/boot/ipl_parm.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/s390/boot/ipl_parm.c b/arch/s390/boot/ipl_parm.c index f94b91d72620..33f43a7d03f3 100644 --- a/arch/s390/boot/ipl_parm.c +++ b/arch/s390/boot/ipl_parm.c @@ -21,6 +21,7 @@ unsigned long __bootdata(memory_end); int __bootdata(memory_end_set); int __bootdata(noexec_disabled); +int vmalloc_size_set; int kaslr_enabled; static inline int __diag308(unsigned long subcode, void *addr) @@ -242,8 +243,10 @@ void parse_boot_command_line(void) memory_end_set = 1; } - if (!strcmp(param, "vmalloc") && val) + if (!strcmp(param, "vmalloc") && val) { vmalloc_size = round_up(memparse(val, NULL), PAGE_SIZE); + vmalloc_size_set = 1; + } if (!strcmp(param, "dfltcc") && val) { if (!strcmp(val, "off")) |