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> SVN-Revision: 40921
		
			
				
	
	
		
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commit 3b8ca0ce9a0b58287a780747c90c449bdebfe464
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Author: Xavier Bestel <bestouff@users.sourceforge.net>
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Date:   Mon Jan 14 08:52:44 2008 +0000
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    removed use of %as is scanf (GNU conflicts with C99) by Giacomo Catenazzi <cate@debian.org>
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diff --git a/genext2fs.c b/genext2fs.c
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index 070b270..f0d797d 100644
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--- a/genext2fs.c
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+++ b/genext2fs.c
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@@ -286,7 +286,9 @@ typedef unsigned int uint32;
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 // older solaris. Note that this is still not very portable, in that
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 // the return value cannot be trusted.
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-#if SCANF_CAN_MALLOC
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+#if 0 // SCANF_CAN_MALLOC
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+// C99 define "a" for floating point, so you can have runtime surprise
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+// according the library versions
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 # define SCANF_PREFIX "a"
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 # define SCANF_STRING(s) (&s)
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 #else
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