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The goal of summary is to speed up the mount time. Erase block summary (EBS) stores summary information at the end of every (closed) erase block. It is no longer necessary to scan all nodes separetly (and read all pages of them) just read this "small" summary, where every information is stored which is needed at mount time. This summary information is stored in a JFFS2_FEATURE_RWCOMPAT_DELETE. During the mount process if there is no summary info the orignal scan process will be executed. EBS works with NAND and NOR flashes, too. There is a user space tool called sumtool to generate this summary information for a JFFS2 image. Signed-off-by: Ferenc Havasi <havasi@inf.u-szeged.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
19 lines
609 B
Makefile
19 lines
609 B
Makefile
#
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# Makefile for the Linux Journalling Flash File System v2 (JFFS2)
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#
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# $Id: Makefile.common,v 1.11 2005/09/07 08:34:53 havasi Exp $
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#
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obj-$(CONFIG_JFFS2_FS) += jffs2.o
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jffs2-y := compr.o dir.o file.o ioctl.o nodelist.o malloc.o
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jffs2-y += read.o nodemgmt.o readinode.o write.o scan.o gc.o
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jffs2-y += symlink.o build.o erase.o background.o fs.o writev.o
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jffs2-y += super.o debug.o
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jffs2-$(CONFIG_JFFS2_FS_WRITEBUFFER) += wbuf.o
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jffs2-$(CONFIG_JFFS2_RUBIN) += compr_rubin.o
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jffs2-$(CONFIG_JFFS2_RTIME) += compr_rtime.o
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jffs2-$(CONFIG_JFFS2_ZLIB) += compr_zlib.o
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jffs2-$(CONFIG_JFFS2_SUMMARY) += summary.o
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