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From:   Thiago Becker <tbecker@redhat.com>
To:     linux-nfs@vger.kernel.org
Cc:     steved@redhat.com, trond.myklebust@hammerspace.com,
        anna.schumaker@netapp.com, kolga@netapp.com,
        Thiago Becker <tbecker@redhat.com>
Subject: [RFC v2 PATCH 1/7] Create nfs-readahead-udev
Date:   Fri, 11 Mar 2022 16:06:11 -0300
Message-Id: <20220311190617.3294919-2-tbecker@redhat.com>
In-Reply-To: <20220311190617.3294919-1-tbecker@redhat.com>
References: <20220311190617.3294919-1-tbecker@redhat.com>
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This tool is invoked by udev to find and set the readahead value to NFS
mounts.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1946283
Signed-off-by: Thiago Becker <tbecker@redhat.com>
---
 .gitignore                           | 1 +
 configure.ac                         | 1 +
 tools/Makefile.am                    | 2 +-
 tools/nfs-readahead-udev/Makefile.am | 3 +++
 tools/nfs-readahead-udev/main.c      | 7 +++++++
 5 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 tools/nfs-readahead-udev/Makefile.am
 create mode 100644 tools/nfs-readahead-udev/main.c

diff --git a/.gitignore b/.gitignore
index c89d1cd2..c99269a4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -61,6 +61,7 @@ utils/statd/statd
 tools/locktest/testlk
 tools/getiversion/getiversion
 tools/nfsconf/nfsconf
+tools/nfs-readahead-udev/nfs-readahead-udev
 support/export/mount.h
 support/export/mount_clnt.c
 support/export/mount_xdr.c
diff --git a/configure.ac b/configure.ac
index e0f5a930..7e5ba5d9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -737,6 +737,7 @@ AC_CONFIG_FILES([
 	tools/rpcgen/Makefile
 	tools/mountstats/Makefile
 	tools/nfs-iostat/Makefile
+	tools/nfs-readahead-udev/Makefile
 	tools/rpcctl/Makefile
 	tools/nfsdclnts/Makefile
 	tools/nfsconf/Makefile
diff --git a/tools/Makefile.am b/tools/Makefile.am
index c3feabbe..621cde03 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -12,6 +12,6 @@ if CONFIG_NFSDCLD
 OPTDIRS += nfsdclddb
 endif
 
-SUBDIRS = locktest rpcdebug nlmtest mountstats nfs-iostat rpcctl nfsdclnts $(OPTDIRS)
+SUBDIRS = locktest rpcdebug nlmtest mountstats nfs-iostat rpcctl nfsdclnts nfs-readahead-udev $(OPTDIRS)
 
 MAINTAINERCLEANFILES = Makefile.in
diff --git a/tools/nfs-readahead-udev/Makefile.am b/tools/nfs-readahead-udev/Makefile.am
new file mode 100644
index 00000000..5455e954
--- /dev/null
+++ b/tools/nfs-readahead-udev/Makefile.am
@@ -0,0 +1,3 @@
+libexec_PROGRAMS = nfs-readahead-udev
+nfs_readahead_udev_SOURCES = main.c
+
diff --git a/tools/nfs-readahead-udev/main.c b/tools/nfs-readahead-udev/main.c
new file mode 100644
index 00000000..e454108e
--- /dev/null
+++ b/tools/nfs-readahead-udev/main.c
@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main(int argc, char **argv, char **envp)
+{
+	unsigned int readahead = 128;
+	printf("%d\n", readahead);
+}
-- 
2.35.1