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| author | Yoshihisa Abe <yoshiabe@cs.cmu.edu> | 2010-10-25 02:03:44 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-25 08:02:40 -0700 |
| commit | b5ce1d83a62fc109d8e815b1fc71dcdb0d26bc49 (patch) | |
| tree | ea537c1b6436c36bee3b33d8b4f750124fd7d661 /fs/coda/upcall.c | |
| parent | 3a99c6319064af3f2e18eb929f638d555dbf7a62 (diff) | |
| download | op-kernel-dev-b5ce1d83a62fc109d8e815b1fc71dcdb0d26bc49.zip op-kernel-dev-b5ce1d83a62fc109d8e815b1fc71dcdb0d26bc49.tar.gz | |
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>
Diffstat (limited to 'fs/coda/upcall.c')
0 files changed, 0 insertions, 0 deletions
