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fs/ext2: allow reserving zero block for root

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The previous default, zero, just meant "use the default value of the
filesystem generator", which happened to be 5% (the traditional value
for all ext-creating tools we've ever seen).

So, change the new default accordingly to 5%.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Yann E. MORIN 2017-07-04 00:50:59 +02:00 committed by Thomas Petazzoni
parent 64cfa50789
commit 3286a4d6aa
2 changed files with 6 additions and 3 deletions
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7
fs/ext2/Config.in
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@ -65,7 +65,12 @@ config BR2_TARGET_ROOTFS_EXT2_EXTRA_INODES
config BR2_TARGET_ROOTFS_EXT2_RESBLKS
int "reserved blocks percentage"
default 0
default 5
help
The number of blocks on the filesystem (as a percentage of the
total number of blocksi), that are reserved for use by root.
Traditionally, this has been 5%, and all ext-related tools still
default to reserving 5% when creating a new ext filesystem.
choice
prompt "Compression method"

2
fs/ext2/ext2.mk
View File

@ -12,9 +12,7 @@ EXT2_OPTS += -i $(BR2_TARGET_ROOTFS_EXT2_INODES)
EXT2_OPTS += -I $(BR2_TARGET_ROOTFS_EXT2_EXTRA_INODES)
ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_RESBLKS)),0)
EXT2_OPTS += -r $(BR2_TARGET_ROOTFS_EXT2_RESBLKS)
endif
# qstrip results in stripping consecutive spaces into a single one. So the
# variable is not qstrip-ed to preserve the integrity of the string value.