[Buildroot] [git commit branch/next] fs/erofs: add big pcluster support
From: Yann E. MORIN <hidden>
Date: 2021-08-03 23:50:42
Subsystem:
erofs file system, filesystems (vfs and infrastructure), the rest · Maintainers:
Gao Xiang, Chao Yu, Alexander Viro, Christian Brauner, Linus Torvalds
commit: https://git.buildroot.net/buildroot/commit/?id=90dfc0a59660020c21fdb5567e45d4edf3e66660 branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/next This enables EROFS big pcluster images for buildroot. Signed-off-by: Gao Xiang <redacted> [yann.morin.1998@free.fr: must be a multiple of 4KiB] Signed-off-by: Yann E. MORIN <redacted> --- fs/erofs/Config.in | 10 ++++++++++ fs/erofs/erofs.mk | 4 ++++ 2 files changed, 14 insertions(+)
diff --git a/fs/erofs/Config.in b/fs/erofs/Config.in
index d7360edeab..e112572688 100644
--- a/fs/erofs/Config.in
+++ b/fs/erofs/Config.in@@ -11,4 +11,14 @@ config BR2_TARGET_ROOTFS_EROFS_LZ4HC help Use lz4 high-compression to compress data in the filesystem. +config BR2_TARGET_ROOTFS_EROFS_PCLUSTERSIZE + int "pcluster size" + default 0 + help + Specify the maximum size of physical cluster in bytes, as a + multiple of 4KiB, for the big pcluster feature in order to + get much better compression ratios (thus better sequential + read performance for common storage devices), which has been + introduced since Linux 5.13. + endif # BR2_TARGET_ROOTFS_EROFS
diff --git a/fs/erofs/erofs.mk b/fs/erofs/erofs.mk
index 58559d4833..0e9d4401a9 100644
--- a/fs/erofs/erofs.mk
+++ b/fs/erofs/erofs.mk@@ -10,6 +10,10 @@ ifeq ($(BR2_TARGET_ROOTFS_EROFS_LZ4HC),y) ROOTFS_EROFS_ARGS += -zlz4hc endif +ifneq ($(BR2_TARGET_ROOTFS_EROFS_PCLUSTERSIZE),0) +ROOTFS_EROFS_ARGS += -C$(strip $(BR2_TARGET_ROOTFS_EROFS_PCLUSTERSIZE)) +endif + define ROOTFS_EROFS_CMD $(HOST_DIR)/bin/mkfs.erofs $(ROOTFS_EROFS_ARGS) $@ $(TARGET_DIR) endef
_______________________________________________ buildroot mailing list buildroot@busybox.net http://lists.busybox.net/mailman/listinfo/buildroot