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Make init handle current 2.4.x sysinfo behavior

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-Erik
This commit is contained in:
Eric Andersen 2000-09-10 16:13:41 +00:00
parent 73de6561ca
commit cbb61c78ae
2 changed files with 18 additions and 24 deletions
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21
init.c
View File

@ -296,20 +296,17 @@ static int check_free_memory()
printf("Error checking free memory: %s\n", strerror(errno));
return -1;
}
/* Kernels prior to 2.4.x will return info.mem_unit==0, so cope... */
if (info.mem_unit==0) {
/* Looks like we have a kernel prior to Linux 2.4.x */
info.mem_unit=1024;
info.totalram/=info.mem_unit;
info.totalswap/=info.mem_unit;
} else {
/* Bah. Linux 2.4.x completely changed sysinfo. This can in theory
overflow a 32 bit unsigned long, but who puts more then 4GiB ram+swap
on an embedded system? */
info.mem_unit/=1024;
info.totalram*=info.mem_unit;
info.totalswap*=info.mem_unit;
info.mem_unit=1;
}
info.mem_unit*=1024;
/* Note: These values can in theory overflow a 32 bit unsigned long (i.e.
* mem >= Gib), but who puts more then 4GiB ram+swap on an embedded
* system? */
info.totalram/=info.mem_unit;
info.totalswap/=info.mem_unit;
return(info.totalram+info.totalswap);
}

21
init/init.c
View File

@ -296,20 +296,17 @@ static int check_free_memory()
printf("Error checking free memory: %s\n", strerror(errno));
return -1;
}
/* Kernels prior to 2.4.x will return info.mem_unit==0, so cope... */
if (info.mem_unit==0) {
/* Looks like we have a kernel prior to Linux 2.4.x */
info.mem_unit=1024;
info.totalram/=info.mem_unit;
info.totalswap/=info.mem_unit;
} else {
/* Bah. Linux 2.4.x completely changed sysinfo. This can in theory
overflow a 32 bit unsigned long, but who puts more then 4GiB ram+swap
on an embedded system? */
info.mem_unit/=1024;
info.totalram*=info.mem_unit;
info.totalswap*=info.mem_unit;
info.mem_unit=1;
}
info.mem_unit*=1024;
/* Note: These values can in theory overflow a 32 bit unsigned long (i.e.
* mem >= Gib), but who puts more then 4GiB ram+swap on an embedded
* system? */
info.totalram/=info.mem_unit;
info.totalswap/=info.mem_unit;
return(info.totalram+info.totalswap);
}