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[4/4] docs: Specify that cache-clean-interval is only supported in Linux

Message ID ed9fc71fdf02941e34b85bedd106ed1287dc5d42.1480072972.git.berto@igalia.com
State New
Headers show

Commit Message

Alberto Garcia Nov. 25, 2016, 11:27 a.m. UTC 
Make it clear that having Linux is a hard requirement for this
feature.

Signed-off-by: Alberto Garcia <berto@igalia.com>
---
 docs/qcow2-cache.txt | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
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Patch

diff --git a/docs/qcow2-cache.txt b/docs/qcow2-cache.txt
index 5bb0607..1fdd6f9 100644
--- a/docs/qcow2-cache.txt
+++ b/docs/qcow2-cache.txt
@@ -160,5 +160,6 @@  If unset, the default value for this parameter is 0 and it disables
 this feature.
 
 Note that this functionality currently relies on the MADV_DONTNEED
-argument for madvise() to actually free the memory, so it is not
-useful in systems that don't follow that behavior.
+argument for madvise() to actually free the memory. This is a
+Linux-specific feature, so cache-clean-interval is not supported in
+other systems.