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posixshm_test: add naive page accounting test

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Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D37097
This commit is contained in:
Konstantin Belousov 2022-12-04 00:54:36 +02:00
parent f1f030246f
commit 91ddfd352f
1 changed files with 33 additions and 0 deletions
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33
tests/sys/posixshm/posixshm_test.c
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@ -1161,6 +1161,38 @@ ATF_TC_BODY(fspacectl, tc)
ATF_REQUIRE(close(fd) == 0);
}
ATF_TC_WITHOUT_HEAD(accounting);
ATF_TC_BODY(accounting, tc)
{
struct spacectl_range range;
struct stat st;
off_t shm_sz, len;
size_t page_size;
int fd, error;
page_size = getpagesize();
shm_sz = shm_max_pages * page_size;
fd = shm_open("/testtest1", O_RDWR | O_CREAT, 0666);
ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; errno:%d", errno);
ATF_REQUIRE_MSG((error = posix_fallocate(fd, 0, shm_sz)) == 0,
"posix_fallocate failed; error=%d", error);
ATF_REQUIRE(shm_fill(fd, 0, shm_sz) == 0);
ATF_REQUIRE(fstat(fd, &st) == 0);
ATF_REQUIRE(st.st_blksize * st.st_blocks == (blkcnt_t)shm_sz);
range.r_offset = page_size;
range.r_len = len = (shm_max_pages - 1) * page_size -
range.r_offset;
ATF_CHECK_MSG(fspacectl(fd, SPACECTL_DEALLOC, &range, 0, &range) == 0,
"SPACECTL_DEALLOC failed; errno=%d", errno);
ATF_REQUIRE(fstat(fd, &st) == 0);
ATF_REQUIRE(st.st_blksize * st.st_blocks == (blkcnt_t)(shm_sz - len));
ATF_REQUIRE(close(fd) == 0);
}
static int
shm_open_large(int psind, int policy, size_t sz)
{
@ -1922,6 +1954,7 @@ ATF_TP_ADD_TCS(tp)
ATF_TP_ADD_TC(tp, mode);
ATF_TP_ADD_TC(tp, fallocate);
ATF_TP_ADD_TC(tp, fspacectl);
ATF_TP_ADD_TC(tp, accounting);
ATF_TP_ADD_TC(tp, largepage_basic);
ATF_TP_ADD_TC(tp, largepage_config);
ATF_TP_ADD_TC(tp, largepage_mmap);