summaryrefslogtreecommitdiff
path: root/fs/hpfs/hpfs_fn.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 17:21:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 17:21:00 -0700
commitf74b9444192c60603020c61d7915b72893137edc (patch)
tree8b1d16d373234038c2b045c9ceb3c33b93059e8a /fs/hpfs/hpfs_fn.h
parent7a6362800cb7d1d618a697a650c7aaed3eb39320 (diff)
parent4ba8216cd90560bc402f52076f64d8546e8aefcb (diff)
Merge branch 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl
* 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: BKL: That's all, folks fs/locks.c: Remove stale FIXME left over from BKL conversion ipx: remove the BKL appletalk: remove the BKL x25: remove the BKL ufs: remove the BKL hpfs: remove the BKL drivers: remove extraneous includes of smp_lock.h tracing: don't trace the BKL adfs: remove the big kernel lock
Diffstat (limited to 'fs/hpfs/hpfs_fn.h')
-rw-r--r--fs/hpfs/hpfs_fn.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
index 1c43dbea55e8..c15adbca07ff 100644
--- a/fs/hpfs/hpfs_fn.h
+++ b/fs/hpfs/hpfs_fn.h
@@ -342,3 +342,25 @@ static inline time32_t gmt_to_local(struct super_block *s, time_t t)
extern struct timezone sys_tz;
return t - sys_tz.tz_minuteswest * 60 - hpfs_sb(s)->sb_timeshift;
}
+
+/*
+ * Locking:
+ *
+ * hpfs_lock() is a leftover from the big kernel lock.
+ * Right now, these functions are empty and only left
+ * for documentation purposes. The file system no longer
+ * works on SMP systems, so the lock is not needed
+ * any more.
+ *
+ * If someone is interested in making it work again, this
+ * would be the place to start by adding a per-superblock
+ * mutex and fixing all the bugs and performance issues
+ * caused by that.
+ */
+static inline void hpfs_lock(struct super_block *s)
+{
+}
+
+static inline void hpfs_unlock(struct super_block *s)
+{
+}