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authorAbhishek Kulkarni <adkulkar@umail.iu.edu>2009-09-23 13:00:27 -0500
committerEric Van Hensbergen <ericvh@strongmad.austin.ibm.com>2009-09-23 13:03:46 -0500
commit60e78d2c993e58d890596d951fff77d5965adcd6 (patch)
tree3d53ed7254c613ef8d8de36fdceda25bc493f4f7 /fs/9p/Kconfig
parent637d020a02cd734bf27acfc56c6d942cddd9eb80 (diff)
9p: Add fscache support to 9p
This patch adds a persistent, read-only caching facility for 9p clients using the FS-Cache caching backend. When the fscache facility is enabled, each inode is associated with a corresponding vcookie which is an index into the FS-Cache indexing tree. The FS-Cache indexing tree is indexed at 3 levels: - session object associated with each mount. - inode/vcookie - actual data (pages) A cache tag is chosen randomly for each session. These tags can be read off /sys/fs/9p/caches and can be passed as a mount-time parameter to re-attach to the specified caching session. Signed-off-by: Abhishek Kulkarni <adkulkar@umail.iu.edu> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'fs/9p/Kconfig')
-rw-r--r--fs/9p/Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/9p/Kconfig b/fs/9p/Kconfig
index 74e0723e90b..795233702a4 100644
--- a/fs/9p/Kconfig
+++ b/fs/9p/Kconfig
@@ -8,3 +8,12 @@ config 9P_FS
See <http://v9fs.sf.net> for more information.
If unsure, say N.
+
+config 9P_FSCACHE
+ bool "Enable 9P client caching support (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ depends on 9P_FS=m && FSCACHE || 9P_FS=y && FSCACHE=y
+ help
+ Choose Y here to enable persistent, read-only local
+ caching support for 9p clients using FS-Cache
+