mirror_zfs/module/spl
Yuxuan Shui bcb15891ab Linux 3.6 compat, kern_path_locked() added
The kern_path_parent() function was removed from Linux 3.6 because
it was observed that all the callers just want the parent dentry.
The simpler kern_path_locked() function replaces kern_path_parent()
and does the lookup while holding the ->i_mutex lock.

This is good news for the vn implementation because it removes the
need for us to handle the locking.  However, it makes it harder to
implement a single readable vn_remove()/vn_rename() function which
is usually what we prefer.

Therefore, we implement a new version of vn_remove()/vn_rename()
for Linux 3.6 and newer kernels.  This allows us to leave the
existing working implementation untouched, and to add a simpler
version for newer kernels.

Long term I would very much like to see all of the vn code removed
since what this code enabled is generally frowned upon in the kernel.
But that can't happen util we either abondon the zpool.cache file
or implement alternate infrastructure to update is correctly in
user space.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #154
2012-10-14 16:26:21 -07:00
..
Makefile.in Add script for builtin module building. 2012-07-26 15:13:09 -07:00
spl-atomic.c Linux 2.6.39 compat, DEFINE_SPINLOCK() 2011-04-20 12:01:11 -07:00
spl-condvar.c Debug cv_destroy() with mutex held 2012-09-10 10:23:26 -07:00
spl-cred.c Add crgetfsuid()/crgetfsgid() helpers 2011-03-22 12:18:44 -07:00
spl-debug.c Wrap trace_set_debug_header in trace_[get|put]_tcd 2012-08-23 10:01:20 -07:00
spl-err.c Add --enable-debug-log configure option 2012-02-02 11:27:54 -08:00
spl-generic.c Determine the hostid on demand. 2012-07-26 15:14:02 -07:00
spl-kmem.c Add KMC_NOEMERGENCY slab flag 2012-09-07 14:27:03 -07:00
spl-kobj.c Remove VN_HOLD/VN_RELE/VOP_PUTPAGE 2011-01-12 11:38:05 -08:00
spl-kstat.c Add basic dynamic kstat support 2012-02-02 11:28:00 -08:00
spl-mutex.c Fix undefined reference on spl_mutex_spin_max(). 2012-07-26 14:54:53 -07:00
spl-proc.c Emergency slab objects 2012-08-27 12:00:42 -07:00
spl-rwlock.c Public Release Prep 2010-05-17 15:18:00 -07:00
spl-taskq.c Remove TQ_SLEEP -> KM_SLEEP mapping 2012-09-12 11:41:42 -07:00
spl-thread.c Switch KM_SLEEP to KM_PUSHPAGE 2012-09-12 12:27:09 -07:00
spl-time.c Minor 32-bit fix cast to hrtime_t before the mutliply. 2010-05-23 09:51:17 -07:00
spl-tsd.c Switch KM_SLEEP to KM_PUSHPAGE 2012-10-11 16:22:29 -07:00
spl-vnode.c Linux 3.6 compat, kern_path_locked() added 2012-10-14 16:26:21 -07:00
spl-xdr.c Prefix all SPL debug macros with 'S' 2010-07-20 13:30:40 -07:00
spl-zlib.c Set KMC_NOEMERGENCY for zlib workspaces 2012-09-07 14:36:26 -07:00