review: avoid #[cfg] attrs, move fanotify_mark to subdirs.

Author: cpu

src/unix/linux_like/linux/gnu/mod.rs

@@ -1198,6 +1198,13 @@ extern "C" {
     pub fn ntp_adjtime(buf: *mut timex) -> ::c_int;
     #[link_name = "ntp_gettimex"]
     pub fn ntp_gettime(buf: *mut ntptimeval) -> ::c_int;
+    pub fn fanotify_mark(
+        fd: ::c_int,
+        flags: ::c_uint,
+        mask: u64,
+        dirfd: ::c_int,
+        path: *const ::c_char,
+    ) -> ::c_int;
 }
 
 #[link(name = "util")]

src/unix/linux_like/linux/mod.rs

@@ -3392,26 +3392,6 @@ extern "C" {
         mask: u32,
     ) -> ::c_int;
     pub fn fanotify_init(flags: ::c_uint, event_f_flags: ::c_uint) -> ::c_int;
-
-    #[cfg(not(target_env = "musl"))]
-    pub fn fanotify_mark(
-        fd: ::c_int,
-        flags: ::c_uint,
-        mask: u64,
-        dirfd: ::c_int,
-        path: *const ::c_char,
-    ) -> ::c_int;
-    // Musl targets need the `mask` argument of `fanotify_mark` be specified `::c_ulonglong`
-    // instead of `u64` or there will be a type mismatch between `long long unsigned int` and the
-    // expected `uint64_t`.
-    #[cfg(target_env = "musl")]
-    pub fn fanotify_mark(
-        fd: ::c_int,
-        flags: ::c_uint,
-        mask: ::c_ulonglong,
-        dirfd: ::c_int,
-        path: *const ::c_char,
-    ) -> ::c_int;
 }
 
 cfg_if! {

src/unix/linux_like/linux/musl/mod.rs

@@ -420,6 +420,16 @@ extern "C" {
         needle: *const ::c_void,
         needlelen: ::size_t,
     ) -> *mut ::c_void;
+    // Musl targets need the `mask` argument of `fanotify_mark` be specified
+    // `::c_ulonglong` instead of `u64` or there will be a type mismatch between
+    // `long long unsigned int` and the expected `uint64_t`.
+    pub fn fanotify_mark(
+        fd: ::c_int,
+        flags: ::c_uint,
+        mask: ::c_ulonglong,
+        dirfd: ::c_int,
+        path: *const ::c_char,
+    ) -> ::c_int;
 }
 
 cfg_if! {