Merge 'io/linux: make syscallio the default (io_uring is really slow)' from Jussi Saurio

context: https://github.com/tursodatabase/limbo/issues/1275

Reviewed-by: Pere Diaz Bou <pere-altea@homail.com>

Closes #1295

cli/input.rs

@@ -43,7 +43,7 @@ impl Default for Io {
             true => {
                 #[cfg(all(target_os = "linux", feature = "io_uring"))]
                 {
-                    Io::IoUring
+                    Io::Syscall // FIXME: make io_uring faster so it can be the default
                 }
                 #[cfg(any(
                     not(target_os = "linux"),

core/ext/mod.rs

@@ -89,12 +89,12 @@ impl Database {
         path: &str,
         vfs: &str,
     ) -> crate::Result<(Arc<dyn IO>, Arc<Database>)> {
-        use crate::{MemoryIO, PlatformIO};
+        use crate::{MemoryIO, SyscallIO};
         use dynamic::get_vfs_modules;
 
         let io: Arc<dyn IO> = match vfs {
             "memory" => Arc::new(MemoryIO::new()),
-            "syscall" => Arc::new(PlatformIO::new()?),
+            "syscall" => Arc::new(SyscallIO::new()?),
             #[cfg(all(target_os = "linux", feature = "io_uring"))]
             "io_uring" => Arc::new(UringIO::new()?),
             other => match get_vfs_modules().iter().find(|v| v.0 == vfs) {

core/io/mod.rs

@@ -190,7 +190,7 @@ cfg_block! {
         #[cfg(feature = "fs")]
         pub use unix::UnixIO;
         pub use unix::UnixIO as SyscallIO;
-        pub use io_uring::UringIO as PlatformIO;
+        pub use unix::UnixIO as PlatformIO;
     }
 
     #[cfg(any(all(target_os = "linux",not(feature = "io_uring")), target_os = "macos"))] {