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-rw-r--r--Documentation/laptops/laptop-mode.txt12
-rw-r--r--Documentation/sysctl/vm.txt14
2 files changed, 13 insertions, 13 deletions
diff --git a/Documentation/laptops/laptop-mode.txt b/Documentation/laptops/laptop-mode.txt
index 0bf25eebce94..4ebbfc3f1c6e 100644
--- a/Documentation/laptops/laptop-mode.txt
+++ b/Documentation/laptops/laptop-mode.txt
@@ -262,9 +262,9 @@ MINIMUM_BATTERY_MINUTES=10
262 262
263# 263#
264# Allowed dirty background ratio, in percent. Once DIRTY_RATIO has been 264# Allowed dirty background ratio, in percent. Once DIRTY_RATIO has been
265# exceeded, the kernel will wake pdflush which will then reduce the amount 265# exceeded, the kernel will wake flusher threads which will then reduce the
266# of dirty memory to dirty_background_ratio. Set this nice and low, so once 266# amount of dirty memory to dirty_background_ratio. Set this nice and low,
267# some writeout has commenced, we do a lot of it. 267# so once some writeout has commenced, we do a lot of it.
268# 268#
269#DIRTY_BACKGROUND_RATIO=5 269#DIRTY_BACKGROUND_RATIO=5
270 270
@@ -384,9 +384,9 @@ CPU_MAXFREQ=${CPU_MAXFREQ:-'slowest'}
384 384
385# 385#
386# Allowed dirty background ratio, in percent. Once DIRTY_RATIO has been 386# Allowed dirty background ratio, in percent. Once DIRTY_RATIO has been
387# exceeded, the kernel will wake pdflush which will then reduce the amount 387# exceeded, the kernel will wake flusher threads which will then reduce the
388# of dirty memory to dirty_background_ratio. Set this nice and low, so once 388# amount of dirty memory to dirty_background_ratio. Set this nice and low,
389# some writeout has commenced, we do a lot of it. 389# so once some writeout has commenced, we do a lot of it.
390# 390#
391DIRTY_BACKGROUND_RATIO=${DIRTY_BACKGROUND_RATIO:-'5'} 391DIRTY_BACKGROUND_RATIO=${DIRTY_BACKGROUND_RATIO:-'5'}
392 392
diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt
index dcc2a94ae34e..078701fdbd4d 100644
--- a/Documentation/sysctl/vm.txt
+++ b/Documentation/sysctl/vm.txt
@@ -76,8 +76,8 @@ huge pages although processes will also directly compact memory as required.
76 76
77dirty_background_bytes 77dirty_background_bytes
78 78
79Contains the amount of dirty memory at which the pdflush background writeback 79Contains the amount of dirty memory at which the background kernel
80daemon will start writeback. 80flusher threads will start writeback.
81 81
82Note: dirty_background_bytes is the counterpart of dirty_background_ratio. Only 82Note: dirty_background_bytes is the counterpart of dirty_background_ratio. Only
83one of them may be specified at a time. When one sysctl is written it is 83one of them may be specified at a time. When one sysctl is written it is
@@ -89,7 +89,7 @@ other appears as 0 when read.
89dirty_background_ratio 89dirty_background_ratio
90 90
91Contains, as a percentage of total system memory, the number of pages at which 91Contains, as a percentage of total system memory, the number of pages at which
92the pdflush background writeback daemon will start writing out dirty data. 92the background kernel flusher threads will start writing out dirty data.
93 93
94============================================================== 94==============================================================
95 95
@@ -112,9 +112,9 @@ retained.
112dirty_expire_centisecs 112dirty_expire_centisecs
113 113
114This tunable is used to define when dirty data is old enough to be eligible 114This tunable is used to define when dirty data is old enough to be eligible
115for writeout by the pdflush daemons. It is expressed in 100'ths of a second. 115for writeout by the kernel flusher threads. It is expressed in 100'ths
116Data which has been dirty in-memory for longer than this interval will be 116of a second. Data which has been dirty in-memory for longer than this
117written out next time a pdflush daemon wakes up. 117interval will be written out next time a flusher thread wakes up.
118 118
119============================================================== 119==============================================================
120 120
@@ -128,7 +128,7 @@ data.
128 128
129dirty_writeback_centisecs 129dirty_writeback_centisecs
130 130
131The pdflush writeback daemons will periodically wake up and write `old' data 131The kernel flusher threads will periodically wake up and write `old' data
132out to disk. This tunable expresses the interval between those wakeups, in 132out to disk. This tunable expresses the interval between those wakeups, in
133100'ths of a second. 133100'ths of a second.
134 134