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Have path_test ask the kernel for the page size

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It may be dynamic so we can't rely on PAGE_SIZE being present or
correct.

Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Andrew Turner 2022-04-07 15:59:38 +01:00
parent df696a2fb6
commit 8d40ee599d
1 changed files with 5 additions and 3 deletions
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8
tests/sys/file/path_test.c
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@ -604,6 +604,7 @@ ATF_TC_BODY(path_io, tc)
char path[PATH_MAX], path2[PATH_MAX];
char buf[BUFSIZ];
struct iovec iov;
size_t page_size;
int error, fd, pathfd, sd[2];
/* It shouldn't be possible to create new files with O_PATH. */
@ -667,14 +668,15 @@ ATF_TC_BODY(path_io, tc)
ATF_REQUIRE_MSG(error == ESPIPE, "posix_fadvise() returned %d", error);
/* mmap() is not allowed. */
page_size = getpagesize();
ATF_REQUIRE_ERRNO(ENODEV,
mmap(NULL, PAGE_SIZE, PROT_READ, MAP_SHARED, pathfd, 0) ==
mmap(NULL, page_size, PROT_READ, MAP_SHARED, pathfd, 0) ==
MAP_FAILED);
ATF_REQUIRE_ERRNO(ENODEV,
mmap(NULL, PAGE_SIZE, PROT_NONE, MAP_SHARED, pathfd, 0) ==
mmap(NULL, page_size, PROT_NONE, MAP_SHARED, pathfd, 0) ==
MAP_FAILED);
ATF_REQUIRE_ERRNO(ENODEV,
mmap(NULL, PAGE_SIZE, PROT_READ, MAP_PRIVATE, pathfd, 0) ==
mmap(NULL, page_size, PROT_READ, MAP_PRIVATE, pathfd, 0) ==
MAP_FAILED);
/* No fsync() or fdatasync(). */