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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-20 12:20:59 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-20 12:20:59 -0400
commitf39d01be4c59a61a08d0cb53f615e7016b85d339 (patch)
tree6777590e3ff2ddf4df1d38444ba7d692cd463b7b /Documentation/filesystems/logfs.txt
parent54291263519ac2c9bdda68b23b02fef3808deed4 (diff)
parent7db82437cfcac4bdfe79a6323eb554fdfa271623 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (44 commits) vlynq: make whole Kconfig-menu dependant on architecture add descriptive comment for TIF_MEMDIE task flag declaration. EEPROM: max6875: Header file cleanup EEPROM: 93cx6: Header file cleanup EEPROM: Header file cleanup agp: use NULL instead of 0 when pointer is needed rtc-v3020: make bitfield unsigned PCI: make bitfield unsigned jbd2: use NULL instead of 0 when pointer is needed cciss: fix shadows sparse warning doc: inode uses a mutex instead of a semaphore. uml: i386: Avoid redefinition of NR_syscalls fix "seperate" typos in comments cocbalt_lcdfb: correct sections doc: Change urls for sparse Powerpc: wii: Fix typo in comment i2o: cleanup some exit paths Documentation/: it's -> its where appropriate UML: Fix compiler warning due to missing task_struct declaration UML: add kernel.h include to signal.c ...
Diffstat (limited to 'Documentation/filesystems/logfs.txt')
-rw-r--r--Documentation/filesystems/logfs.txt8
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/filesystems/logfs.txt b/Documentation/filesystems/logfs.txt
index e64c94ba401..bca42c22a14 100644
--- a/Documentation/filesystems/logfs.txt
+++ b/Documentation/filesystems/logfs.txt
@@ -59,7 +59,7 @@ Levels
59------ 59------
60 60
61Garbage collection (GC) may fail if all data is written 61Garbage collection (GC) may fail if all data is written
62indiscriminately. One requirement of GC is that data is seperated 62indiscriminately. One requirement of GC is that data is separated
63roughly according to the distance between the tree root and the data. 63roughly according to the distance between the tree root and the data.
64Effectively that means all file data is on level 0, indirect blocks 64Effectively that means all file data is on level 0, indirect blocks
65are on levels 1, 2, 3 4 or 5 for 1x, 2x, 3x, 4x or 5x indirect blocks, 65are on levels 1, 2, 3 4 or 5 for 1x, 2x, 3x, 4x or 5x indirect blocks,
@@ -67,7 +67,7 @@ respectively. Inode file data is on level 6 for the inodes and 7-11
67for indirect blocks. 67for indirect blocks.
68 68
69Each segment contains objects of a single level only. As a result, 69Each segment contains objects of a single level only. As a result,
70each level requires its own seperate segment to be open for writing. 70each level requires its own separate segment to be open for writing.
71 71
72Inode File 72Inode File
73---------- 73----------
@@ -106,9 +106,9 @@ Vim
106--- 106---
107 107
108By cleverly predicting the life time of data, it is possible to 108By cleverly predicting the life time of data, it is possible to
109seperate long-living data from short-living data and thereby reduce 109separate long-living data from short-living data and thereby reduce
110the GC overhead later. Each type of distinc life expectency (vim) can 110the GC overhead later. Each type of distinc life expectency (vim) can
111have a seperate segment open for writing. Each (level, vim) tupel can 111have a separate segment open for writing. Each (level, vim) tupel can
112be open just once. If an open segment with unknown vim is encountered 112be open just once. If an open segment with unknown vim is encountered
113at mount time, it is closed and ignored henceforth. 113at mount time, it is closed and ignored henceforth.
114 114