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Revert "xpmem: Fix deadlock in xpmem_remove_process_memory_range()"

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This reverts commit d052acab1d.

Change-Id: I31e982465ef9e0936145f27c8d1587c01737ec81
This commit is contained in:
Masamichi Takagi
2020-06-16 10:38:33 +09:00
parent e774e1b984
commit 2fe5c8de2e
20 changed files with 4 additions and 1470 deletions
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88
test/xpmem/XTP_905.c
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@ -1,88 +0,0 @@
#include <unistd.h>
#include <stdio.h>
#include <sys/mman.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/wait.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <xpmem.h>
#include <libgen.h>
#include "util.h"
#define BAD_SEGID -1
int main(int argc, char **argv)
{
void *mem, *attach;
int rc = 0;
int status;
pid_t pid;
xpmem_segid_t segid;
xpmem_apid_t apid;
struct xpmem_addr addr;
printf("*** %s start ***\n", basename(argv[0]));
mem = mmap(0, SZ_MEM, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE |
MAP_HUGETLB | (LARGE_PAGE_SHIFT << MAP_HUGE_SHIFT), -1, 0);
CHKANDJUMP(mem == NULL, "mmap");
memset(mem, 0, SZ_MEM);
rc = xpmem_init();
CHKANDJUMP(rc != 0, "xpmem_init");
segid = xpmem_make(mem, SZ_MEM, XPMEM_PERMIT_MODE, (void *)0666);
CHKANDJUMP(segid == -1, "xpmem_make");
fflush(0);
pid = fork();
CHKANDJUMP(pid == -1, "fork failed\n");
if (pid == 0) {
/* Child process */
apid = xpmem_get(segid, XPMEM_RDWR, XPMEM_PERMIT_MODE, NULL);
CHKANDJUMP(apid == -1, "xpmem_get in child");
addr.apid = apid;
addr.offset = 0;
attach = xpmem_attach(addr, SZ_MEM, NULL);
CHKANDJUMP(attach == (void *)-1, "xpmem_attach in child");
*((unsigned long *)attach) = TEST_VAL;
rc = xpmem_detach(attach);
CHKANDJUMP(rc == -1, "xpmem_detach in child");
fflush(0);
_exit(0);
} else {
/* Parent process */
rc = waitpid(pid, &status, 0);
CHKANDJUMP(rc == -1, "waitpid failed\n");
CHKANDJUMP(*((unsigned long *)mem) != TEST_VAL,
"validate TEST_VAL");
rc = xpmem_remove(BAD_SEGID);
OKNG(rc != -1, "xpmem_remove failed (invalid segid)");
rc = xpmem_remove(segid);
CHKANDJUMP(rc == -1, "xpmem_remove");
rc = xpmem_remove(segid);
OKNG(rc != -1, "xpmem_remove failed (do twice to same segid)");
}
printf("*** %s PASSED\n\n", basename(argv[0]));
return 0;
fn_fail:
printf("*** %s FAILED\n\n", basename(argv[0]));
return -1;
}