[Buildroot] [git commit] fs/ext2: allow reserving zero block for root
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Tue Jul 4 06:47:57 UTC 2017
commit: https://git.buildroot.net/buildroot/commit/?id=3286a4d6aa2707e9dcdcb26e7c391bd7a07eddad
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master
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 at free.fr>
Signed-off-by: Samuel Martin <s.martin49 at gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
fs/ext2/Config.in | 7 ++++++-
fs/ext2/ext2.mk | 2 --
2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/fs/ext2/Config.in b/fs/ext2/Config.in
index a1e3647..6f16dde 100644
--- a/fs/ext2/Config.in
+++ b/fs/ext2/Config.in
@@ -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"
diff --git a/fs/ext2/ext2.mk b/fs/ext2/ext2.mk
index 6a35b33..57058b5 100644
--- a/fs/ext2/ext2.mk
+++ b/fs/ext2/ext2.mk
@@ -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.
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