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| author | John Crispin <blogic@openwrt.org> | 2014-06-02 12:43:46 +0000 |
|---|---|---|
| committer | John Crispin <blogic@openwrt.org> | 2014-06-02 12:43:46 +0000 |
| commit | d4d63a3d241b453a044ce72a5bb7ea68e94f7b2c (patch) | |
| tree | 5e8127f47766a36ca113143151c372a5abce66a4 /tools/genext2fs/patches/100-c99_scanf.patch | |
| parent | 4c58e12447b930bbaa8747a03a41707177e3bc00 (diff) | |
| download | master-187ad058-d4d63a3d241b453a044ce72a5bb7ea68e94f7b2c.tar.gz master-187ad058-d4d63a3d241b453a044ce72a5bb7ea68e94f7b2c.tar.bz2 master-187ad058-d4d63a3d241b453a044ce72a5bb7ea68e94f7b2c.zip | |
tools: genext2fs: add support for blocksize != 1024
This patch series is extracted from
http://ftp.de.debian.org/debian/pool/main/g/genext2fs/genext2fs_1.4.1-4.debian.tar.gz
The patches are used in Debian for quite a long time, so I assume that
this is solid material. At least, my Ubuntu host fsck.ext4 does not bark :-)
The goal is to allow building filesystems with larger blocksizes instead of the
current default of 1k. This should improve performance and lifetime when the
filesystem is stored e.g. on a SD card (on Raspberry Pi/I2SE Duckbill for example)
which uses internal flash memory. Writing to flash memory is slow because writing
the data of one block results in erasing a whole erase block of the flash memory.
Thus it is preferable to align the filesystem block size on a flash device with
the erase blocksize, or at least bring it closer to the later one, to avoid
unnecessary write amplification.
Signed-off-by: Michael Heimpold <mhei@heimpold.de>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40921 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'tools/genext2fs/patches/100-c99_scanf.patch')
| -rw-r--r-- | tools/genext2fs/patches/100-c99_scanf.patch | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/genext2fs/patches/100-c99_scanf.patch b/tools/genext2fs/patches/100-c99_scanf.patch new file mode 100644 index 0000000000..e7aa17cc6f --- /dev/null +++ b/tools/genext2fs/patches/100-c99_scanf.patch @@ -0,0 +1,21 @@ +commit 3b8ca0ce9a0b58287a780747c90c449bdebfe464 +Author: Xavier Bestel <bestouff@users.sourceforge.net> +Date: Mon Jan 14 08:52:44 2008 +0000 + + removed use of %as is scanf (GNU conflicts with C99) by Giacomo Catenazzi <cate@debian.org> + +diff --git a/genext2fs.c b/genext2fs.c +index 070b270..f0d797d 100644 +--- a/genext2fs.c ++++ b/genext2fs.c +@@ -286,7 +286,9 @@ typedef unsigned int uint32; + // older solaris. Note that this is still not very portable, in that + // the return value cannot be trusted. + +-#if SCANF_CAN_MALLOC ++#if 0 // SCANF_CAN_MALLOC ++// C99 define "a" for floating point, so you can have runtime surprise ++// according the library versions + # define SCANF_PREFIX "a" + # define SCANF_STRING(s) (&s) + #else |