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Kernel: Add a mode flag to sys$purge and allow purging clean inodes

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This commit is contained in:
Andreas Kling 2019-12-29 13:16:53 +01:00
parent c74cde918a
commit 1f31156173
7 changed files with 83 additions and 17 deletions
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23
Userland/purge.cpp
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@ -1,9 +1,26 @@
#include <stdio.h>
#include <Kernel/Syscall.h>
#include <stdio.h>
#include <string.h>
int main(int, char**)
#define PURGE_ALL_VOLATILE 0x1
#define PURGE_ALL_CLEAN_INODE 0x2
int main(int argc, char** argv)
{
int purged_page_count = syscall(SC_purge);
int mode = 0;
if (argc == 1) {
mode = PURGE_ALL_VOLATILE | PURGE_ALL_CLEAN_INODE;
} else {
if (!strcmp(argv[1], "-c")) {
mode = PURGE_ALL_CLEAN_INODE;
} else if (!strcmp(argv[1], "-v")) {
mode = PURGE_ALL_VOLATILE;
} else {
fprintf(stderr, "Unknown option: %s\n", argv[1]);
return 1;
}
}
int purged_page_count = syscall(SC_purge, mode);
printf("Purged page count: %d\n", purged_page_count);
return 0;
}