Hello, Linus,
this patch adds fs/Kconfig entries and adds reiser4 to fs/Makefile.
Please apply.
Trick-or-treat?
Nikita.
diff -rup -X dontdiff linus-bk-2.5/fs/Kconfig linux-2.5-reiser4/fs/Kconfig
--- linus-bk-2.5/fs/Kconfig Thu Oct 31 03:02:44 2002
+++ linux-2.5-reiser4/fs/Kconfig Thu Oct 31 13:53:57 2002
@@ -84,6 +84,150 @@ config AUTOFS4_FS
local network, you probably do not need an automounter, and can say
N here.
+config REISER4_FS
+ tristate "Reiser4 (EXPERIMENTAL very fast general purpose filesystem)"
+ depends on EXPERIMENTAL
+ ---help---
+ Reiser4 is more than twice as fast for both reads and writes as
+ ReiserFS. That means it is four times as fast as NTFS by Microsoft.
+ (Proper benchmarks will appear in a few months at
+ www.namesys.com/benchmarks.html, please be patient for now).
+
+ It is the storage layer of what will become a general purpose naming
+ system --- like what Microsoft wants OFS to be except designed with a
+ clean new semantic layer rather than being SQL based like OFS.
+
+ It performs all filesystem operations as atomic transactions, which
+ means that it either performs a write, or it does not, and in the
+ event of a crash it does not partially perform it or corrupt it.
+
+ It stores files in dancing trees, which are like balanced trees but
+ faster. It packs small files together so that they share blocks
+ without wasting space. This means you can use it to store really
+ small files. It also means that it saves you disk space. It avoids
+ hassling you with anachronisms like having a maximum number of
+ inodes, and wasting space if you use less than that number.
+
+ It can handle really large directories, because its search
+ algorithms are logarithmic with size not linear. With Reiser4 you
+ should use subdirectories because they help YOU, not because they
+ help your filesystem's performance, or because your filesystem won't
+ be able to shrink a directory once you have let it grow. For squid
+ and similar applications, everything in one directory should perform
+ better.
+
+ It has a plugin-based infrastructure, which means that you can easily
+ invent new kinds of files, and so can other people, so it will evolve
+ rapidly.
+
+ We will be adding a variety of security features to it that DARPA has
+ funded us to write.
+
+ "reiser4" is a distinct filesystem mount type from "reiserfs" (V3),
+ which means that "reiserfs" filesystems will be unaffected by any
+ reiser4 bugs. They have no code in common. Reiser4 is a complete
+ rewrite from scratch fully incorporating what we learned by experience
+ while doing "reiserfs" the first time. That was a lot.;-)
+
+ Reiser4 is about as stable as the usual tornado for now --- it is
+ for use by developers and testers only. We don't use it for our web
+ server --- you should not either. This will change before 2.6.0.
+ ReiserFS V3 is the right choice for those who want a filesystem so
+ stable that we can go for months now without any bug reports while we
+ have millions of users.
+
+ If you'd like to upgrade from reiserfs to reiser4, use tar to a
+ temporary disk, maybe using NFS/ssh/SFS to get to that disk, or ask
+ your favorite distro to sponsor writing a conversion program.
+
+ Sponsored by the Defensed Advanced Research Projects Agency (DARPA)
+ of the United States Government. DARPA does not endorse this
+ project, it merely sponsors it.
+ See http://www.darpa.mil/ato/programs/chats.htm
+
+ To learn more about reiser4, go to http://www.namesys.com
+
+config REISER4_CHECK
+ bool "Enable reiser4 debug options"
+ depends on REISER4_FS
+ ---help---
+ Don't use this unless you are a developer debugging reiser4. If
+ using a kernel made by a distro that thinks they are our competitor
+ (sigh) rather than made by Linus, always check each release to make
+ sure they have not turned this on to make us look slow as was done
+ once in the past. This checks everything imaginable while reiser4
+ runs.
+
+ When adding features to reiser4 you should set this, and then
+ extensively test the code, and then send to us and we will test it
+ again. Include a description of what you did to test it. All
+ reiser4 code must be tested, reviewed, and signed off on by two
+ persons before it will be accepted into a stable kernel by Hans.
+
+config REISER4_DEBUG
+ bool "Assertions"
+ depends on REISER4_CHECK
+ help
+ Turns on assertions checks. Eats a lot of CPU.
+
+config REISER4_CHECK_STACK
+ bool "Stack check"
+ depends on REISER4_CHECK
+ help
+ Turns on checks for stack overflow.
+
+config REISER4_DEBUG_MODIFY
+ bool "Dirtying"
+ depends on REISER4_CHECK
+ help
+ Check that node is marked dirty each time it's modified. This is done
+ through maintaining checksum of node content. CPU hog.
+
+config REISER4_DEBUG_MEMCPY
+ bool "Memory copying"
+ depends on REISER4_CHECK
+ help
+ Use special non-inlined versions on memcpy, memset, and memmove in
+ reiser4 to estimate amount of CPU time spent in data copying.
+
+config REISER4_DEBUG_NODE
+ bool "Node consistency"
+ depends on REISER4_CHECK
+ help
+ Run consistency checks on nodes in balanced tree. CPU hog.
+
+config REISER4_ZERO_NEW_NODE
+ bool "Node zeroing"
+ depends on REISER4_CHECK
+ help
+ Zero new node before use.
+
+config REISER4_TRACE
+ bool "Tracing"
+ depends on REISER4_CHECK
+ help
+ Turn on tracing facility. This enables trace_flags mount option.
+
+config REISER4_STATS
+ bool "Statistics"
+ depends on REISER4_CHECK
+ help
+ Turn on statistics collection. This increases size of in-memory super
+ block considerably.
+
+config REISER4_DEBUG_OUTPUT
+ bool "Printing"
+ depends on REISER4_CHECK
+ help
+ Enable compilation of functions that print internal kernel data
+ structures in human readable form. Useful for debugging.
+
+config REISER4_NOOPT
+ bool "Disable optimization"
+ depends on REISER4_CHECK
+ help
+ Disable compiler optimizations for reiser4 code.
+
config REISERFS_FS
tristate "Reiserfs support"
---help---
diff -rup -X dontdiff linus-bk-2.5/fs/Makefile linux-2.5-reiser4/fs/Makefile
--- linus-bk-2.5/fs/Makefile Tue Oct 29 03:01:20 2002
+++ linux-2.5-reiser4/fs/Makefile Tue Oct 29 12:40:59 2002
@@ -83,6 +83,7 @@ obj-$(CONFIG_AUTOFS_FS) += autofs/
obj-$(CONFIG_AUTOFS4_FS) += autofs4/
obj-$(CONFIG_ADFS_FS) += adfs/
obj-$(CONFIG_REISERFS_FS) += reiserfs/
+obj-$(CONFIG_REISER4_FS) += reiser4/
obj-$(CONFIG_SUN_OPENPROMFS) += openpromfs/
obj-$(CONFIG_JFS_FS) += jfs/
obj-$(CONFIG_XFS_FS) += xfs/
-
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This archive was generated by hypermail 2b29 : Thu Oct 31 2002 - 22:00:54 EST