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Implement an ATA driver, Add vfsmount/vfsunmount syscalls

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This commit is contained in:
Kamil Kowalczyk
2025-10-14 00:39:59 +02:00
parent cb9e15330e
commit 25cb309105
19 changed files with 455 additions and 58 deletions
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31
kernel/kmain.c
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@ -14,37 +14,6 @@
#include "dev/dev.h"
#include "randcrypto/randcrypto.h"
const char *human_size(uint64_t bytes, char *buf, size_t bufsize) {
static const char *units[] = { "B", "KiB", "MiB", "GiB", "TiB", "PiB" };
int unit = 0;
// Scale down until value fits nicely
uint64_t rem = 0;
while (bytes >= 1024 && unit < (int)(sizeof(units)/sizeof(units[0])) - 1) {
rem = bytes % 1024;
bytes /= 1024;
unit++;
}
if (unit == 0) {
// Just bytes
ksnprintf(buf, bufsize, "%llu %s", (unsigned long long)bytes, units[unit]);
} else {
// Show one decimal place without using floats
// Multiply remainder by 10 to get first decimal digit
uint64_t frac = (rem * 10 + 512) / 1024; // rounded
if (frac == 10) { // handle carry, e.g. 1023.9 -> 1024.0
bytes++;
frac = 0;
}
if (frac > 0) ksnprintf(buf, bufsize, "%llu.%llu %s", (unsigned long long)bytes, (unsigned long long)frac, units[unit]);
else ksnprintf(buf, bufsize, "%llu %s", (unsigned long long)bytes, units[unit]);
}
return buf;
}
void log_bootinfo(void) {
char buf[100];
LOG("kmain", "Memory total = %s\n", human_size(BOOT_INFO.memmap_total, buf, sizeof(buf)));