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Merge branch 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin

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* '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
This commit is contained in:
Linus Torvalds
2011-01-13 20:14:13 -08:00
parent 9c4bc1c2be f20877d94a
commit db9effe99a
6 changed files with 40 additions and 14 deletions
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8
Documentation/filesystems/porting
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@@ -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]