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CVS log for src/sys/fs/nilfs/nilfs_fs.h

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Default branch: MAIN


Revision 1.4 / (download) - annotate - [select for diffs], Wed Feb 16 22:00:56 2022 UTC (11 months, 2 weeks ago) by andvar
Branch: MAIN
CVS Tags: netbsd-10-base, netbsd-10, bouyer-sunxi-drm-base, bouyer-sunxi-drm, HEAD
Changes since 1.3: +2 -2 lines
Diff to previous 1.3 (colored)

fix various typos, mainly in comments.

Revision 1.2.18.1 / (download) - annotate - [select for diffs], Mon Feb 25 00:29:48 2013 UTC (9 years, 11 months ago) by tls
Branch: tls-maxphys
Changes since 1.2: +3 -3 lines
Diff to previous 1.2 (colored) next main 1.3 (colored)

resync with head

Revision 1.2.8.1 / (download) - annotate - [select for diffs], Wed Jan 16 05:33:39 2013 UTC (10 years ago) by yamt
Branch: yamt-pagecache
CVS Tags: yamt-pagecache-tag8
Changes since 1.2: +3 -3 lines
Diff to previous 1.2 (colored) next main 1.3 (colored)

sync with (a bit old) head

Revision 1.3 / (download) - annotate - [select for diffs], Sat Dec 1 11:41:49 2012 UTC (10 years, 2 months ago) by mbalmer
Branch: MAIN
CVS Tags: yamt-pagecache-base9, yamt-pagecache-base8, yamt-pagecache-base7, tls-maxphys-base-20171202, tls-maxphys-base, tls-earlyentropy-base, tls-earlyentropy, thorpej-i2c-spi-conf2-base, thorpej-i2c-spi-conf2, thorpej-i2c-spi-conf-base, thorpej-i2c-spi-conf, thorpej-futex2-base, thorpej-futex2, thorpej-futex-base, thorpej-futex, thorpej-cfargs2-base, thorpej-cfargs2, thorpej-cfargs-base, thorpej-cfargs, rmind-smpnet-nbase, rmind-smpnet-base, rmind-smpnet, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3, riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2, prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, phil-wifi-base, phil-wifi-20200421, phil-wifi-20200411, phil-wifi-20200406, phil-wifi-20191119, phil-wifi-20190609, phil-wifi, pgoyette-localcount-base, pgoyette-localcount-20170426, pgoyette-localcount-20170320, pgoyette-localcount-20170107, pgoyette-localcount-20161104, pgoyette-localcount-20160806, pgoyette-localcount-20160726, pgoyette-localcount, pgoyette-compat-merge-20190127, pgoyette-compat-base, pgoyette-compat-20190127, pgoyette-compat-20190118, pgoyette-compat-1226, pgoyette-compat-1126, pgoyette-compat-1020, pgoyette-compat-0930, pgoyette-compat-0906, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315, pgoyette-compat, perseant-stdc-iso10646-base, perseant-stdc-iso10646, nick-nhusb-base-20170825, nick-nhusb-base-20170204, nick-nhusb-base-20161204, nick-nhusb-base-20161004, nick-nhusb-base-20160907, nick-nhusb-base-20160529, nick-nhusb-base-20160422, nick-nhusb-base-20160319, nick-nhusb-base-20151226, nick-nhusb-base-20150921, nick-nhusb-base-20150606, nick-nhusb-base-20150406, nick-nhusb-base, nick-nhusb, netbsd-9-base, netbsd-9-3-RELEASE, netbsd-9-2-RELEASE, netbsd-9-1-RELEASE, netbsd-9-0-RELEASE, netbsd-9-0-RC2, netbsd-9-0-RC1, netbsd-9, netbsd-8-base, netbsd-8-2-RELEASE, netbsd-8-1-RELEASE, netbsd-8-1-RC1, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1, netbsd-8, netbsd-7-nhusb-base-20170116, netbsd-7-nhusb-base, netbsd-7-nhusb, netbsd-7-base, netbsd-7-2-RELEASE, netbsd-7-1-RELEASE, netbsd-7-1-RC2, netbsd-7-1-RC1, netbsd-7-1-2-RELEASE, netbsd-7-1-1-RELEASE, netbsd-7-1, netbsd-7-0-RELEASE, netbsd-7-0-RC3, netbsd-7-0-RC2, netbsd-7-0-RC1, netbsd-7-0-2-RELEASE, netbsd-7-0-1-RELEASE, netbsd-7-0, netbsd-7, matt-nb8-mediatek-base, matt-nb8-mediatek, localcount-20160914, khorben-n900, jdolecek-ncq-base, jdolecek-ncq, isaki-audio2-base, isaki-audio2, is-mlppp-base, is-mlppp, cjep_sun2x-base1, cjep_sun2x-base, cjep_sun2x, cjep_staticlib_x-base1, cjep_staticlib_x-base, cjep_staticlib_x, bouyer-xenpvh-base2, bouyer-xenpvh-base1, bouyer-xenpvh-base, bouyer-xenpvh, bouyer-socketcan-base1, bouyer-socketcan-base, bouyer-socketcan, agc-symver-base, agc-symver, ad-namecache-base3, ad-namecache-base2, ad-namecache-base1, ad-namecache-base, ad-namecache
Changes since 1.2: +3 -3 lines
Diff to previous 1.2 (colored)

Fix misspelling:  accommodate is a long enough word to have room for two 'c's
and two 'm's.

Revision 1.1.6.1 / (download) - annotate - [select for diffs], Tue Aug 17 06:47:17 2010 UTC (12 years, 5 months ago) by uebayasi
Branch: uebayasi-xip
Changes since 1.1: +2 -2 lines
Diff to previous 1.1 (colored) next main 1.2 (colored)

Sync with HEAD.

Revision 1.1.4.3 / (download) - annotate - [select for diffs], Wed Aug 11 22:54:34 2010 UTC (12 years, 5 months ago) by yamt
Branch: yamt-nfs-mp
Changes since 1.1.4.2: +3 -3 lines
Diff to previous 1.1.4.2 (colored) to branchpoint 1.1 (colored) next main 1.2 (colored)

sync with head.

Revision 1.1.8.1 / (download) - annotate - [select for diffs], Sat Jul 3 01:19:50 2010 UTC (12 years, 7 months ago) by rmind
Branch: rmind-uvmplock
Changes since 1.1: +3 -3 lines
Diff to previous 1.1 (colored) next main 1.2 (colored)

sync with head

Revision 1.2 / (download) - annotate - [select for diffs], Thu Jun 24 10:20:08 2010 UTC (12 years, 7 months ago) by reinoud
Branch: MAIN
CVS Tags: yamt-pagecache-base6, yamt-pagecache-base5, yamt-pagecache-base4, yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, yamt-nfs-mp-base11, yamt-nfs-mp-base10, uebayasi-xip-base4, uebayasi-xip-base3, uebayasi-xip-base2, rmind-uvmplock-nbase, rmind-uvmplock-base, netbsd-6-base, netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-5-RELEASE, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-1, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-6-RELEASE, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, netbsd-6-0, netbsd-6, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus, matt-mips64-premerge-20101231, jruoho-x86intr-base, jruoho-x86intr, jmcneill-usbmp-pre-base2, jmcneill-usbmp-base9, jmcneill-usbmp-base8, jmcneill-usbmp-base7, jmcneill-usbmp-base6, jmcneill-usbmp-base5, jmcneill-usbmp-base4, jmcneill-usbmp-base3, jmcneill-usbmp-base2, jmcneill-usbmp-base10, jmcneill-usbmp-base, jmcneill-usbmp, jmcneill-audiomp3-base, jmcneill-audiomp3, cherry-xenmp-base, cherry-xenmp, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2
Branch point for: yamt-pagecache, tls-maxphys
Changes since 1.1: +3 -3 lines
Diff to previous 1.1 (colored)

Update NiLFS(2) on-disc structures from Linux version

Revision 1.1.4.2 / (download) - annotate - [select for diffs], Wed Aug 19 18:48:13 2009 UTC (13 years, 5 months ago) by yamt
Branch: yamt-nfs-mp
Changes since 1.1.4.1: +560 -0 lines
Diff to previous 1.1.4.1 (colored) to branchpoint 1.1 (colored)

sync with head.

Revision 1.1.2.2 / (download) - annotate - [select for diffs], Thu Jul 23 23:32:32 2009 UTC (13 years, 6 months ago) by jym
Branch: jym-xensuspend
Changes since 1.1.2.1: +560 -0 lines
Diff to previous 1.1.2.1 (colored) to branchpoint 1.1 (colored) next main 1.2 (colored)

Sync with HEAD.

Revision 1.1.4.1, Sat Jul 18 16:31:42 2009 UTC (13 years, 6 months ago) by yamt
Branch: yamt-nfs-mp
Changes since 1.1: +0 -560 lines
FILE REMOVED

file nilfs_fs.h was added on branch yamt-nfs-mp on 2009-08-19 18:48:13 +0000

Revision 1.1.2.1, Sat Jul 18 16:31:42 2009 UTC (13 years, 6 months ago) by jym
Branch: jym-xensuspend
Changes since 1.1: +0 -560 lines
FILE REMOVED

file nilfs_fs.h was added on branch jym-xensuspend on 2009-07-23 23:32:32 +0000

Revision 1.1 / (download) - annotate - [select for diffs], Sat Jul 18 16:31:42 2009 UTC (13 years, 6 months ago) by reinoud
Branch: MAIN
CVS Tags: yamt-nfs-mp-base9, yamt-nfs-mp-base8, yamt-nfs-mp-base7, uebayasi-xip-base1, uebayasi-xip-base, matt-premerge-20091211, jymxensuspend-base, jym-xensuspend-nbase
Branch point for: yamt-nfs-mp, uebayasi-xip, rmind-uvmplock, jym-xensuspend

Import read-only part of the NiLFS (v2) implementation for NetBSD. It has been
tested with a DEBUG+DIAGNOSTIC+LOCKDEBUG kernel. To summerise NiLFS, i'll
repeat my posting to tech-kern here:

NiLFS stands for New implementation of Logging File System; LFS done
right they claim :) It is at version 2 now and is being developed by NTT, the
Japanese telecom company and recently put into the linux source tree. See
http://www.nilfs.org. The on-disc format is not completely frozen and i expect
at least one minor revision to come in time.

The benefits of NiLFS are build-in fine-grained checkpointing, persistent
snapshots, multiple mounts and very large file and media support. Every
checkpoint can be transformed into a snapshot and v.v. It is said to perform
very well on flash media since it is not overwriting pieces apart from a
incidental update of the superblock, but that might change. It is accompanied
by a cleaner to clean up the segments and recover lost space.

My work is not a port of the linux code; its a new implementation. Porting the
code would be more work since its very linux oriented and never written to be
ported outside linux. The goal is to be fully interchangable. The code is non
intrusive to other parts of the kernel. It is also very light-weight.

The current state of the code is read-only access to both clean and dirty
NiLFS partitions. On mounting a dirty partition it rolls forward the log to
the last checkpoint. Full read-write support is however planned!

Just as the linux code, mount_nilfs allows for the `head' to be mounted
read/write and allows multiple read-only snapshots/checkpoint mounts next to
it.

By allowing the RW mount at a different snapshot for read-write it should be
possible eventually to revert back to a previous state; i.e. try to upgrade a
system and being able to revert to the exact state prior to the upgrade.

Compared to other FS's its pretty light-weight, suitable for embedded use and
on flash media. The read-only code is currently 17kb object code on
NetBSD/i386. I doubt the read-write code will surpass the 50 or 60. Compared
this to FFS being 156kb, UDF being 84 kb and NFS being 130kb. Run-time memory
usage is most likely not very different from other uses though maybe a bit
higher than FFS.

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