diff options
| author | Jinshan Xiong <jinshan.xiong@intel.com> | 2014-04-27 13:06:50 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-27 10:24:54 -0700 |
| commit | 09aed8a59cb659f6cbdf5b1f5c3174e7e3d306aa (patch) | |
| tree | eb891ad9c7f335eb5aa3d01a85c54b73dbd093b7 /include/uapi/linux | |
| parent | 9fc3b028b9518bd09fe24219cb2f9c439a1848fc (diff) | |
staging/lustre/llite: access layout version under a lock
We used to access layout version under the protection of ldlm
lock, this introduces extra overhead for dlm lock matching.
In this patch, lli_layout_lock is introduced to access the layout
version. Also, when a layout lock is losing, we should tear down
mmap of the correspoding inode to avoid stale data accessing in the
future.
This is part of technical verification of replication.
Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-on: http://review.whamcloud.com/8689
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3254
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Bobi Jam <bobijam@gmail.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi/linux')
0 files changed, 0 insertions, 0 deletions