diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2023-07-07 21:40:38 +0100 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-07-15 08:02:32 +0100 |
| commit | 9c255cb53e44d5db57b3388fd6dfab96d4883790 (patch) | |
| tree | 41e70e4bb8c0bc27ef1168243631c52da134efb8 /bsd-user/mmap.c | |
| parent | c2281ddcf38cb851857718acc388f1b9b7564f39 (diff) | |
bsd-user: Use page_check_range_empty for MAP_EXCL
The previous check returned -1 when any page within
[start, start+len) is unmapped, not when all are unmapped.
Cc: Warner Losh <imp@bsdimp.com>
Cc: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20230707204054.8792-11-richard.henderson@linaro.org>
Diffstat (limited to 'bsd-user/mmap.c')
| -rw-r--r-- | bsd-user/mmap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/bsd-user/mmap.c b/bsd-user/mmap.c index 565b9f97ed..07b5b8055e 100644 --- a/bsd-user/mmap.c +++ b/bsd-user/mmap.c @@ -609,7 +609,7 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int prot, } /* Reject the mapping if any page within the range is mapped */ - if ((flags & MAP_EXCL) && page_check_range(start, len, 0) < 0) { + if ((flags & MAP_EXCL) && !page_check_range_empty(start, end - 1)) { errno = EINVAL; goto fail; } |