diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-13 20:14:13 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-13 20:14:13 -0800 |
| commit | db9effe99adc67c53e6aedadadd2aa9a02342e48 (patch) | |
| tree | efe7ebfe951972568189ef2548130f0abd515210 /Documentation/filesystems | |
| parent | 9c4bc1c2befbbdce4b9fd526e67a7a2ea143ffa2 (diff) | |
| parent | f20877d94a74557b7c28b4ed8920d834c31e0ea5 (diff) | |
| download | linux-db9effe99adc67c53e6aedadadd2aa9a02342e48.tar.gz linux-db9effe99adc67c53e6aedadadd2aa9a02342e48.tar.bz2 linux-db9effe99adc67c53e6aedadadd2aa9a02342e48.zip | |
Merge branch 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin
* 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin:
fs: fix do_last error case when need_reval_dot
nfs: add missing rcu-walk check
fs: hlist UP debug fixup
fs: fix dropping of rcu-walk from force_reval_path
fs: force_reval_path drop rcu-walk before d_invalidate
fs: small rcu-walk documentation fixes
Fixed up trivial conflicts in Documentation/filesystems/porting
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/porting | 8 | ||||
| -rw-r--r-- | Documentation/filesystems/vfs.txt | 4 |
2 files changed, 6 insertions, 6 deletions
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting index 266d2059b9b8..dfbcd1b00b0a 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 @@ -383,8 +383,8 @@ 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. -- [mandatory] 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 |