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authorNick Piggin <npiggin@kernel.dk>2011-01-14 05:26:53 +0300
committerNick Piggin <npiggin@hera.kernel.org>2011-01-14 05:26:53 +0300
commita82416da83722944d78d933301e32e7c5ad70edd (patch)
treec2990d561fc5ed703bf46b34122f7a6b81b45dd5 /Documentation
parentb3e19d924b6eaf2ca7d22cba99a517c5171007b6 (diff)
downloadlinux-a82416da83722944d78d933301e32e7c5ad70edd.tar.xz
fs: small rcu-walk documentation fixes
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/filesystems/porting8
-rw-r--r--Documentation/filesystems/vfs.txt4
2 files changed, 6 insertions, 6 deletions
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 07a32b42cf9c..7fcac6393cd0 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -365,8 +365,8 @@ must be done in the RCU callback.
[recommended]
vfs now tries to do path walking in "rcu-walk mode", which avoids
atomic operations and scalability hazards on dentries and inodes (see
-Documentation/filesystems/path-walk.txt). d_hash and d_compare changes (above)
-are examples of the changes required to support this. For more complex
+Documentation/filesystems/path-lookup.txt). d_hash and d_compare changes
+(above) are examples of the changes required to support this. For more complex
filesystem callbacks, the vfs drops out of rcu-walk mode before the fs call, so
no changes are required to the filesystem. However, this is costly and loses
the benefits of rcu-walk mode. We will begin to add filesystem callbacks that
@@ -383,5 +383,5 @@ Documentation/filesystems/vfs.txt for more details.
permission and check_acl are inode permission checks that are called
on many or all directory inodes on the way down a path walk (to check for
-exec permission). These must now be rcu-walk aware (flags & IPERM_RCU). See
-Documentation/filesystems/vfs.txt for more details.
+exec permission). These must now be rcu-walk aware (flags & IPERM_FLAG_RCU).
+See Documentation/filesystems/vfs.txt for more details.
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index fbb324e2bd43..cae6d27c9f5b 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -415,8 +415,8 @@ otherwise noted.
permission: called by the VFS to check for access rights on a POSIX-like
filesystem.
- May be called in rcu-walk mode (flags & IPERM_RCU). If in rcu-walk
- mode, the filesystem must check the permission without blocking or
+ May be called in rcu-walk mode (flags & IPERM_FLAG_RCU). If in rcu-walk
+ mode, the filesystem must check the permission without blocking or
storing to the inode.
If a situation is encountered that rcu-walk cannot handle, return