fs/f2fs: add option to define overprovision ratio

Signed-off-by: Grzegorz Blach <grzegorz@blach.pl>
[Thomas: split from the initial patch from Grzegorz, reworded
Config.in help text]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

diff --git a/fs/f2fs/Config.in b/fs/f2fs/Config.in
index ca838096d9e68d8ed6a870a85c919d3f938fd6e7..71101d2b574912555bb88bc25dbdc9970ead70df 100644 (file)
--- a/fs/f2fs/Config.in
+++ b/fs/f2fs/Config.in
@@ -25,4 +25,15 @@ config BR2_TARGET_ROOTFS_F2FS_COLD_FILES
          cold files. The default list includes most of multimedia
          file extensions such as jpg, gif, mpeg, mkv, and so on.
 
+config BR2_TARGET_ROOTFS_F2FS_OVERPROVISION
+       int "overprovision ratio"
+       default 0
+       help
+         The percentage over the volume size for overprovision
+         area. This area is hidden to users, and utilized by F2FS
+         cleaner.
+
+         Leave at 0 to use the default overprovision ratio of
+         mkfs.f2fs.
+
 endif # BR2_TARGET_ROOTFS_F2FS

diff --git a/fs/f2fs/f2fs.mk b/fs/f2fs/f2fs.mk
index 6025aad4bb9d484eb353f96c165f65619943f83c..cf79779d2e876d244b4adbeed4139def0f7cfe4f 100644 (file)
--- a/fs/f2fs/f2fs.mk
+++ b/fs/f2fs/f2fs.mk
@@ -15,10 +15,15 @@ F2FS_LABEL := $(subst ",,$(BR2_TARGET_ROOTFS_F2FS_LABEL))
 # ")
 F2FS_COLD_FILES = $(call qstrip,$(BR2_TARGET_ROOTFS_F2FS_COLD_FILES))
 
+ifneq ($(BR2_TARGET_ROOTFS_F2FS_OVERPROVISION),0)
+F2FS_OVERPROVISION = $(BR2_TARGET_ROOTFS_F2FS_OVERPROVISION)
+endif
+
 F2FS_OPTS = \
        -f \
        -l "$(F2FS_LABEL)" \
-       $(if $(F2FS_COLD_FILES),-e "$(F2FS_COLD_FILES)")
+       $(if $(F2FS_COLD_FILES),-e "$(F2FS_COLD_FILES)") \
+       $(if $(F2FS_OVERPROVISION),-o $(F2FS_OVERPROVISION))
 
 ROOTFS_F2FS_DEPENDENCIES = host-f2fs-tools