diff options
| author | David Howells <dhowells@redhat.com> | 2009-04-03 16:42:37 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2009-04-03 16:42:37 +0100 |
| commit | 7394daa8c61dfda4baa687f133748fa0b599b017 (patch) | |
| tree | 32d2c55ed60596918ec62ce6ecca186337bf4660 /Documentation/filesystems/caching/backend-api.txt | |
| parent | 06b3db1b9bccdc8c2c743122a89745279e5ecc46 (diff) | |
FS-Cache: Add use of /proc and presentation of statistics
Make FS-Cache create its /proc interface and present various statistical
information through it. Also provide the functions for updating this
information.
These features are enabled by:
CONFIG_FSCACHE_PROC
CONFIG_FSCACHE_STATS
CONFIG_FSCACHE_HISTOGRAM
The /proc directory for FS-Cache is also exported so that caching modules can
add their own statistics there too.
The FS-Cache module is loadable at this point, and the statistics files can be
examined by userspace:
cat /proc/fs/fscache/stats
cat /proc/fs/fscache/histogram
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Steve Dickson <steved@redhat.com>
Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
Diffstat (limited to 'Documentation/filesystems/caching/backend-api.txt')
| -rw-r--r-- | Documentation/filesystems/caching/backend-api.txt | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/Documentation/filesystems/caching/backend-api.txt b/Documentation/filesystems/caching/backend-api.txt index 17723053aa91..382d52cdaf2d 100644 --- a/Documentation/filesystems/caching/backend-api.txt +++ b/Documentation/filesystems/caching/backend-api.txt @@ -100,12 +100,6 @@ A sysfs directory called /sys/fs/fscache/<cachetag>/ is created if CONFIG_SYSFS is enabled. This is accessible through the kobject struct fscache_cache::kobj and is for use by the cache as it sees fit. -The cache driver may create itself a directory named for the cache type in the -/proc/fs/fscache/ directory. This is available if CONFIG_FSCACHE_PROC is -enabled and is accessible through: - - struct proc_dir_entry *proc_fscache; - ======================== RELEVANT DATA STRUCTURES |