commit b5ce1d83a62fc109d8e815b1fc71dcdb0d26bc49
author Yoshihisa Abe <yoshiabe@cs.cmu.edu> Mon Oct 25 02:03:44 2010 -0400
committer Linus Torvalds <torvalds@linux-foundation.org> Mon Oct 25 08:02:40 2010 -0700
tree ea537c1b6436c36bee3b33d8b4f750124fd7d661
parent 3a99c6319064af3f2e18eb929f638d555dbf7a62

Coda: add spin lock to protect accesses to struct coda_inode_info.

We mostly need it to protect cached user permissions. The c_flags field
is advisory, reading the wrong value is harmless and in the worst case
we hit a slow path where we have to make an extra upcall to the
userspace cache manager when revalidating a dentry or inode.

Signed-off-by: Yoshihisa Abe <yoshiabe@cs.cmu.edu>
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>