linux: add new flags for pwritev2/preadv2

Author: the8472

libc-test/build.rs

@@ -4452,6 +4452,15 @@ fn test_linux(target: &str) {
             // kernel 6.2 minimum
             "TUN_F_USO4" | "TUN_F_USO6" | "IFF_NO_CARRIER" => true,
 
+            // kernel 6.9 minimum
+            "RWF_NOAPPEND" => true,
+
+            // kernel 6.11 minimum
+            "RWF_ATOMIC" => true,
+
+            // kernel 6.14 minimum
+            "RWF_DONTCACHE" => true,
+
             // FIXME(linux): Requires more recent kernel headers
             | "IFLA_PARENT_DEV_NAME"     // linux v5.13+
             | "IFLA_PARENT_DEV_BUS_NAME" // linux v5.13+

libc-test/semver/linux-gnu.txt

@@ -389,6 +389,9 @@ RTM_NEWCACHEREPORT
 RTM_NEWSTATS
 RUN_LVL
 RWF_APPEND
+RWF_NOAPPEND
+RWF_ATOMIC
+RWF_DONTCACHE
 RWF_DSYNC
 RWF_HIPRI
 RWF_NOWAIT

libc-test/semver/linux-musl.txt

@@ -32,6 +32,9 @@ PR_SET_VMA
 PR_SET_VMA_ANON_NAME
 RUN_LVL
 RWF_APPEND
+RWF_NOAPPEND
+RWF_ATOMIC
+RWF_DONTCACHE
 RWF_DSYNC
 RWF_HIPRI
 RWF_NOWAIT

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

@@ -954,6 +954,9 @@ pub const RWF_DSYNC: c_int = 0x00000002;
 pub const RWF_SYNC: c_int = 0x00000004;
 pub const RWF_NOWAIT: c_int = 0x00000008;
 pub const RWF_APPEND: c_int = 0x00000010;
+pub const RWF_NOAPPEND: c_int = 0x00000020;
+pub const RWF_ATOMIC: c_int = 0x00000040;
+pub const RWF_DONTCACHE: c_int = 0x00000080;
 
 // linux/rtnetlink.h
 pub const TCA_PAD: c_ushort = 9;

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

@@ -773,6 +773,9 @@ pub const RWF_DSYNC: c_int = 0x00000002;
 pub const RWF_SYNC: c_int = 0x00000004;
 pub const RWF_NOWAIT: c_int = 0x00000008;
 pub const RWF_APPEND: c_int = 0x00000010;
+pub const RWF_NOAPPEND: c_int = 0x00000020;
+pub const RWF_ATOMIC: c_int = 0x00000040;
+pub const RWF_DONTCACHE: c_int = 0x00000080;
 
 pub const AF_IB: c_int = 27;
 pub const AF_MPLS: c_int = 28;