Re: [OS-BUILD PATCH] RHEL: disable io_uring support

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From: Justin Forbes on gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1159#note_585939162

Not sure what Kconfig options you are saying it adds. In this case, it only
adds one for CONFIG_IO_URING. Running a test with the following diff show no
unset config options or mismatches in either case when I set CONFIG_IO_URING=y
for Fedora and off for ELN.  Diff below:

`diff --git a/init/Kconfig b/init/Kconfig
index 1ea12c64e4c9..0decca696bf7 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1621,7 +1621,7 @@ config AIO
          this option saves about 7k.

 config IO_URING
-       bool "Enable IO uring support" if EXPERT
+       bool "Enable IO uring support"
        select IO_WQ
        default y
        help
diff --git a/redhat/configs/common/generic/CONFIG_IO_URING
b/redhat/configs/common/generic/CONFIG_IO_URING
new file mode 100644
index 000000000000..dcae2b3a1327
--- /dev/null
+++ b/redhat/configs/common/generic/CONFIG_IO_URING
@@ -0,0 +1 @@
+# CONFIG_IO_URING is not set
diff --git a/redhat/configs/fedora/generic/CONFIG_IO_URING
b/redhat/configs/fedora/generic/CONFIG_IO_URING
new file mode 100644
index 000000000000..eff85c7a8f85
--- /dev/null
+++ b/redhat/configs/fedora/generic/CONFIG_IO_URING
@@ -0,0 +1 @@
+CONFIG_IO_URING=y
`

And the resulting configs:
`>grep IO_URING redhat/configs/kernel-*.config
redhat/configs/kernel-aarch64-debug-fedora.config:CONFIG_IO_URING=y
redhat/configs/kernel-aarch64-debug-rhel.config:# CONFIG_IO_URING is not set
redhat/configs/kernel-aarch64-fedora.config:CONFIG_IO_URING=y
redhat/configs/kernel-aarch64-rhel.config:# CONFIG_IO_URING is not set
redhat/configs/kernel-armv7hl-debug-fedora.config:CONFIG_IO_URING=y
redhat/configs/kernel-armv7hl-fedora.config:CONFIG_IO_URING=y
redhat/configs/kernel-armv7hl-lpae-debug-fedora.config:CONFIG_IO_URING=y
redhat/configs/kernel-armv7hl-lpae-fedora.config:CONFIG_IO_URING=y
redhat/configs/kernel-i686-debug-fedora.config:CONFIG_IO_URING=y
redhat/configs/kernel-i686-fedora.config:CONFIG_IO_URING=y
redhat/configs/kernel-ppc64le-debug-fedora.config:CONFIG_IO_URING=y
redhat/configs/kernel-ppc64le-debug-rhel.config:# CONFIG_IO_URING is not set
redhat/configs/kernel-ppc64le-fedora.config:CONFIG_IO_URING=y
redhat/configs/kernel-ppc64le-rhel.config:# CONFIG_IO_URING is not set
redhat/configs/kernel-s390x-debug-fedora.config:CONFIG_IO_URING=y
redhat/configs/kernel-s390x-debug-rhel.config:# CONFIG_IO_URING is not set
redhat/configs/kernel-s390x-fedora.config:CONFIG_IO_URING=y
redhat/configs/kernel-s390x-rhel.config:# CONFIG_IO_URING is not set
redhat/configs/kernel-s390x-zfcpdump-rhel.config:# CONFIG_IO_URING is not set
redhat/configs/kernel-x86_64-debug-fedora.config:CONFIG_IO_URING=y
redhat/configs/kernel-x86_64-debug-rhel.config:# CONFIG_IO_URING is not set
redhat/configs/kernel-x86_64-fedora.config:CONFIG_IO_URING=y
redhat/configs/kernel-x86_64-rhel.config:# CONFIG_IO_URING is not set`

Of course things seem to be building as expected on rawhide, the config
doesn't change. I am testing a build in ELN to be sure, though I exect if
issues show up, they would also show up with the original patch as they would
be the result of turning off CONFIG_IO_URING.
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