diff options
| author | Trond Myklebust | 2018-10-01 10:41:51 -0400 |
|---|---|---|
| committer | J. Bruce Fields | 2018-10-29 16:58:04 -0400 |
| commit | d48cf356a13073853f19be6ca5ebbecfc2762ebe (patch) | |
| tree | 94c1c887f4b40d27666b4bd2b9205c9a7dcc78af /Documentation/filesystems/nfs | |
| parent | a6482733bc98aa04b44c91e744bbcbfb29f8d3ee (diff) | |
SUNRPC: Remove non-RCU protected lookup
Clean up the cache code by removing the non-RCU protected lookup.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'Documentation/filesystems/nfs')
| -rw-r--r-- | Documentation/filesystems/nfs/rpc-cache.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/filesystems/nfs/rpc-cache.txt b/Documentation/filesystems/nfs/rpc-cache.txt index ebcaaee21616..c4dac829db0f 100644 --- a/Documentation/filesystems/nfs/rpc-cache.txt +++ b/Documentation/filesystems/nfs/rpc-cache.txt @@ -84,7 +84,7 @@ Creating a Cache A message from user space has arrived to fill out a cache entry. It is in 'buf' of length 'len'. cache_parse should parse this, find the item in the - cache with sunrpc_cache_lookup, and update the item + cache with sunrpc_cache_lookup_rcu, and update the item with sunrpc_cache_update. @@ -95,7 +95,7 @@ Creating a Cache Using a cache ------------- -To find a value in a cache, call sunrpc_cache_lookup passing a pointer +To find a value in a cache, call sunrpc_cache_lookup_rcu passing a pointer to the cache_head in a sample item with the 'key' fields filled in. This will be passed to ->match to identify the target entry. If no entry is found, a new entry will be create, added to the cache, and @@ -116,7 +116,7 @@ item does become valid, the deferred copy of the request will be revisited (->revisit). It is expected that this method will reschedule the request for processing. -The value returned by sunrpc_cache_lookup can also be passed to +The value returned by sunrpc_cache_lookup_rcu can also be passed to sunrpc_cache_update to set the content for the item. A second item is passed which should hold the content. If the item found by _lookup has valid data, then it is discarded and a new item is created. This |