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[73.127.246.43]) by smtp.gmail.com with ESMTPSA id c24-20020a02a618000000b004710f04c411sm109425jam.76.2024.02.06.21.58.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Feb 2024 21:58:34 -0800 (PST) From: Thomas Bertschinger To: rust-for-linux@vger.kernel.org, linux-bcachefs@vger.kernel.org, linux-fsdevel@vger.kernel.org, kent.overstreet@linux.dev, bfoster@redhat.com, ojeda@kernel.org, alex.gaynor@gmail.com, wedsonaf@gmail.com Cc: Thomas Bertschinger Subject: [PATCH RFC 2/3] bcachefs: create framework for Rust bindings Date: Tue, 6 Feb 2024 22:58:18 -0700 Message-ID: <20240207055818.611679-1-tahbertschinger@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This adds infrastructure for Rust bindings, generated by bindgen, for bcachefs internal use. The Rust code is only enabled when a new config option, BCACHEFS_RUST, is defined. This option depends on RUST. This change does not generate any bindings; future patches will use the framework introduced here to add Rust code to bcachefs. Signed-off-by: Thomas Bertschinger --- fs/bcachefs/.gitignore | 3 +++ fs/bcachefs/Kconfig | 6 ++++++ fs/bcachefs/Makefile | 9 +++++++++ fs/bcachefs/bindgen_parameters | 5 +++++ fs/bcachefs/bindings/bindings_helper.h | 3 +++ fs/bcachefs/bindings/mod.rs | 3 +++ 6 files changed, 29 insertions(+) create mode 100644 fs/bcachefs/.gitignore create mode 100644 fs/bcachefs/bindgen_parameters create mode 100644 fs/bcachefs/bindings/bindings_helper.h create mode 100644 fs/bcachefs/bindings/mod.rs diff --git a/fs/bcachefs/.gitignore b/fs/bcachefs/.gitignore new file mode 100644 index 000000000000..35be43f02195 --- /dev/null +++ b/fs/bcachefs/.gitignore @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-only + +bcachefs_generated.rs diff --git a/fs/bcachefs/Kconfig b/fs/bcachefs/Kconfig index 5cdfef3b551a..6d40669dca00 100644 --- a/fs/bcachefs/Kconfig +++ b/fs/bcachefs/Kconfig @@ -33,6 +33,12 @@ config BCACHEFS_QUOTA depends on BCACHEFS_FS select QUOTACTL +config BCACHEFS_RUST + bool "bcachefs Rust support" + depends on BCACHEFS_FS && RUST + help + This enables the internal Rust bindings for bcachefs. + config BCACHEFS_ERASURE_CODING bool "bcachefs erasure coding (RAID5/6) support (EXPERIMENTAL)" depends on BCACHEFS_FS diff --git a/fs/bcachefs/Makefile b/fs/bcachefs/Makefile index 1a05cecda7cc..3f209511149c 100644 --- a/fs/bcachefs/Makefile +++ b/fs/bcachefs/Makefile @@ -89,4 +89,13 @@ bcachefs-y := \ varint.o \ xattr.o +always-$(CONFIG_BCACHEFS_RUST) += bindings/bcachefs_generated.rs + +$(obj)/bindings/bcachefs_generated.rs: private bindgen_target_flags = \ + $(shell grep -Ev '^#|^$$' $(srctree)/$(src)/bindgen_parameters) + +$(obj)/bindings/bcachefs_generated.rs: $(src)/bindings/bindings_helper.h \ + $(src)/bindgen_parameters FORCE + $(call if_changed_dep,bindgen) + obj-$(CONFIG_MEAN_AND_VARIANCE_UNIT_TEST) += mean_and_variance_test.o diff --git a/fs/bcachefs/bindgen_parameters b/fs/bcachefs/bindgen_parameters new file mode 100644 index 000000000000..547212bebd6e --- /dev/null +++ b/fs/bcachefs/bindgen_parameters @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0 + +--allowlist-function '' +--allowlist-type '' +--allowlist-var '' diff --git a/fs/bcachefs/bindings/bindings_helper.h b/fs/bcachefs/bindings/bindings_helper.h new file mode 100644 index 000000000000..f8bef3676f71 --- /dev/null +++ b/fs/bcachefs/bindings/bindings_helper.h @@ -0,0 +1,3 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#include "../bcachefs.h" diff --git a/fs/bcachefs/bindings/mod.rs b/fs/bcachefs/bindings/mod.rs new file mode 100644 index 000000000000..19a3ae3c63c6 --- /dev/null +++ b/fs/bcachefs/bindings/mod.rs @@ -0,0 +1,3 @@ +// SPDX-License-Identifier: GPL-2.0 + +include!("bcachefs_generated.rs");