sys-fs/bcachefs-kmod: add erasure coding and quota support

Erasure coding is experimental and therefore USE masked.

Signed-off-by: Florian Albrechtskirchinger <falbrechtskirchinger@gmail.com>

sys-fs/bcachefs-kmod/bcachefs-kmod-1.35.0.ebuild

@@ -27,7 +27,7 @@ fi
 LICENSE="GPL-2"
 SLOT="0"
 
-IUSE="debug verify-sig"
+IUSE="debug erasure-coding quota verify-sig"
 
 BDEPEND="
 	>=sys-kernel/linux-headers-6.16
@@ -63,6 +63,7 @@ pkg_setup() {
 		FRAME_POINTER
 		!DEBUG_INFO_REDUCED
 	"
+	use quota && CONFIG_CHECK+=" QUOTACTL"
 	linux-mod-r1_pkg_setup
 }
 
@@ -86,15 +87,23 @@ src_unpack() {
 src_prepare() {
 	default
 
+	# Upstream PR: https://github.com/koverstreet/bcachefs/pull/1038
+	cat <<-EOF >> libbcachefs/Makefile || die
+	ifdef BCACHEFS_DKMS
+		subdir-ccflags-\$(CONFIG_BCACHEFS_QUOTA) += -DCONFIG_BCACHEFS_QUOTA=1
+		subdir-ccflags-\$(CONFIG_BCACHEFS_ERASURE_CODING) += -DCONFIG_BCACHEFS_ERASURE_CODING=1
+	endif
+	EOF
+
 	sed -i s/^VERSION=.*$/VERSION=${PV}/ Makefile || die
 	emake DESTDIR="${WORKDIR}" PREFIX="/module" install_dkms
 }
 
 src_compile() {
 	local modlist=( "bcachefs=:../${MODULE_S}:../${MODULE_S}/src/fs/bcachefs" )
-	local modargs=(
-		KDIR=${KV_OUT_DIR}
-	)
+	local modargs=( KDIR=${KV_OUT_DIR} )
+	use erasure-coding && modargs+=( CONFIG_BCACHEFS_ERASURE_CODING=y )
+	use quota && modargs+=( CONFIG_BCACHEFS_QUOTA=y )
 
 	linux-mod-r1_src_compile
 }

sys-fs/bcachefs-kmod/metadata.xml

@@ -12,4 +12,8 @@
 	<upstream>
 		<remote-id type="github">koverstreet/bcachefs-tools</remote-id>
 	</upstream>
+	<use>
+		<flag name="erasure-coding">Enable bcachefs erasure coding (RAID5/6) support (EXPERIMENTAL)</flag>
+		<flag name="quota">Enable bcachefs quota support</flag>
+	</use>
 </pkgmetadata>