diff options
| author | Ingo Molnar <mingo@elte.hu> | 2010-03-09 19:11:53 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-03-09 19:11:53 +0300 |
| commit | 548b84166917d6f5e2296123b85ad24aecd3801d (patch) | |
| tree | 0ab0300e23a02df0fe3c0579627e4998bb122c00 /Documentation/block/queue-sysfs.txt | |
| parent | cfb581bcd4f8c158c6f2b48bf5e232bb9e6855c0 (diff) | |
| parent | 57d54889cd00db2752994b389ba714138652e60c (diff) | |
| download | linux-548b84166917d6f5e2296123b85ad24aecd3801d.tar.xz | |
Merge commit 'v2.6.34-rc1' into perf/urgent
Conflicts:
tools/perf/util/probe-event.c
Merge reason: Pick up -rc1 and resolve the conflict as well.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/block/queue-sysfs.txt')
| -rw-r--r-- | Documentation/block/queue-sysfs.txt | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/block/queue-sysfs.txt b/Documentation/block/queue-sysfs.txt index e164403f60e1..f65274081c8d 100644 --- a/Documentation/block/queue-sysfs.txt +++ b/Documentation/block/queue-sysfs.txt @@ -25,11 +25,11 @@ size allowed by the hardware. nomerges (RW) ------------- -This enables the user to disable the lookup logic involved with IO merging -requests in the block layer. Merging may still occur through a direct -1-hit cache, since that comes for (almost) free. The IO scheduler will not -waste cycles doing tree/hash lookups for merges if nomerges is 1. Defaults -to 0, enabling all merges. +This enables the user to disable the lookup logic involved with IO +merging requests in the block layer. By default (0) all merges are +enabled. When set to 1 only simple one-hit merges will be tried. When +set to 2 no merge algorithms will be tried (including one-hit or more +complex tree/hash lookups). nr_requests (RW) ---------------- |