From eb2235d914984bff74c625de4fa4887d4f86f971 Mon Sep 17 00:00:00 2001
From: V3n3RiX <venerix@koprulu.sector>
Date: Sun, 2 Oct 2022 19:13:18 +0100
Subject: gentoo auto-resync : 02:10:2022 - 19:13:17

---
 .../folly-2022.08.15.00-liburing-headers.patch     | 102 ---------------------
 1 file changed, 102 deletions(-)
 delete mode 100644 dev-cpp/folly/files/folly-2022.08.15.00-liburing-headers.patch

(limited to 'dev-cpp/folly/files/folly-2022.08.15.00-liburing-headers.patch')

diff --git a/dev-cpp/folly/files/folly-2022.08.15.00-liburing-headers.patch b/dev-cpp/folly/files/folly-2022.08.15.00-liburing-headers.patch
deleted file mode 100644
index f485ee2175fc..000000000000
--- a/dev-cpp/folly/files/folly-2022.08.15.00-liburing-headers.patch
+++ /dev/null
@@ -1,102 +0,0 @@
-Fix build w/ older kernel headers.
-
-https://github.com/facebook/folly/commit/ae20efa9fa8cea81079df519d93dcbd1523c8dc3
-
-From ae20efa9fa8cea81079df519d93dcbd1523c8dc3 Mon Sep 17 00:00:00 2001
-From: Dylan Yudaken <dylany@fb.com>
-Date: Mon, 15 Aug 2022 08:32:53 -0700
-Subject: [PATCH] io_uring: support older versions of liburing
-
-Summary: Some #if to support older versions of liburing as reported here; https://github.com/facebook/folly/issues/1832
-
-Reviewed By: Orvid
-
-Differential Revision: D38650359
-
-fbshipit-source-id: eb78a7607eaaf151dc394cef72df3826c83fdfbc
---- a/folly/experimental/io/IoUringBackend.cpp
-+++ b/folly/experimental/io/IoUringBackend.cpp
-@@ -40,6 +40,16 @@ extern "C" FOLLY_ATTR_WEAK void eb_poll_loop_pre_hook(uint64_t* call_time);
- extern "C" FOLLY_ATTR_WEAK void eb_poll_loop_post_hook(
-     uint64_t call_time, int ret);
- 
-+// there is no builtin macro we can use in liburing to tell what version we are
-+// on or if features are supported. We will try and get this into the next
-+// release but for now in the latest release there was also added multishot
-+// accept - and so we can use it's pressence to suggest that we can safely use
-+// newer features
-+#if defined(IORING_ACCEPT_MULTISHOT)
-+#define FOLLY_IO_URING_UP_TO_DATE 1
-+#else
-+#define FOLLY_IO_URING_UP_TO_DATE 0
-+#endif
- namespace folly {
- 
- namespace {
-@@ -296,11 +306,7 @@ std::chrono::time_point<std::chrono::steady_clock> getTimerExpireTime(
-   return now + us;
- }
- 
--// there is no builtin macro we can use in liburing to tell if buffer rings are
--// supported. However in the release that added them, there was also added
--// multishot accept - and so we can use it's pressence to suggest that we can
--// safely use provided buffer rings
--#if defined(IORING_ACCEPT_MULTISHOT)
-+#if FOLLY_IO_URING_UP_TO_DATE
- 
- class ProvidedBuffersBuffer {
-  public:
-@@ -738,7 +744,11 @@ IoUringBackend::IoUringBackend(Options options)
-   params_.flags |= IORING_SETUP_CQSIZE;
-   params_.cq_entries = options.capacity;
-   if (options_.taskRunCoop) {
-+#if FOLLY_IO_URING_UP_TO_DATE
-     params_.flags |= IORING_SETUP_COOP_TASKRUN;
-+#else
-+    // this has no functional change so just leave it
-+#endif
-   }
- 
-   // poll SQ options
-@@ -1237,9 +1247,12 @@ int IoUringBackend::eb_event_base_loop(int flags) {
-     }
- 
-     if (options_.registerRingFd) {
-+      // registering just has some perf impact, so no need to fall back
-+#if FOLLY_IO_URING_UP_TO_DATE
-       if (io_uring_register_ring_fd(&ioRing_) < 0) {
-         LOG(ERROR) << "unable to register io_uring ring fd";
-       }
-+#endif
-     }
-   }
- 
-@@ -1496,9 +1509,11 @@ void IoUringBackend::cancel(IoSqeBase* ioSqe) {
-   auto* sqe = get_sqe();
-   io_uring_prep_cancel64(sqe, (uint64_t)ioSqe, 0);
-   io_uring_sqe_set_data(sqe, (void*)&ioSqeNop); // just need something unique
-+#if FOLLY_IO_URING_UP_TO_DATE
-   if (params_.features & IORING_FEAT_CQE_SKIP) {
-     sqe->flags |= IOSQE_CQE_SKIP_SUCCESS;
-   }
-+#endif
- }
- 
- int IoUringBackend::cancelOne(IoSqe* ioSqe) {
-@@ -1848,9 +1863,15 @@ void IoUringBackend::processFileOp(IoSqe* sqe, int64_t res) noexcept {
- }
- 
- bool IoUringBackend::kernelHasNonBlockWriteFixes() const {
-+#if FOLLY_IO_URING_UP_TO_DATE
-   // this was fixed in 5.18, which introduced linked file
-   // fixed in "io_uring: only wake when the correct events are set"
-   return params_.features & IORING_FEAT_LINKED_FILE;
-+#else
-+  // this indicates that sockets have to manually remove O_NONBLOCK
-+  // which is a bit slower but shouldnt cause any functional changes
-+  return false;
-+#endif
- }
- 
- namespace {
-
-- 
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