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Subject[PATCH 01/12] btrfs-progs: build: Check zoned block device support
Date
If the kernel supports zoned block devices, the file
/usr/include/linux/blkzoned.h will be present. Check this and define
BTRFS_ZONED if the file is present.

If it present, enables HMZONED feature, if not disable it.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
---
configure.ac | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/configure.ac b/configure.ac
index cf792eb5488b..c637f72a8fe6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -206,6 +206,18 @@ else
AC_DEFINE([HAVE_OWN_FIEMAP_EXTENT_SHARED_DEFINE], [0], [We did not define FIEMAP_EXTENT_SHARED])
fi

+AC_CHECK_HEADER(linux/blkzoned.h, [blkzoned_found=yes], [blkzoned_found=no])
+AC_ARG_ENABLE([zoned],
+ AS_HELP_STRING([--disable-zoned], [disable zoned block device support]),
+ [], [enable_zoned=$blkzoned_found]
+)
+
+AS_IF([test "x$enable_zoned" = xyes], [
+ AC_CHECK_HEADER(linux/blkzoned.h, [],
+ [AC_MSG_ERROR([Couldn't find linux/blkzoned.h])])
+ AC_DEFINE([BTRFS_ZONED], [1], [enable zoned block device support])
+])
+
dnl Define <NAME>_LIBS= and <NAME>_CFLAGS= by pkg-config
dnl
dnl The default PKG_CHECK_MODULES() action-if-not-found is end the
@@ -307,6 +319,7 @@ AC_MSG_RESULT([
btrfs-restore zstd: ${enable_zstd}
Python bindings: ${enable_python}
Python interpreter: ${PYTHON}
+ zoned device: ${enable_zoned}

Type 'make' to compile.
])
--
2.21.0
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