2 Commits

Author	SHA1	Message	Date
Susant Palai	09e7eca47d	locks/fencing: Add a security knob for fencing ... There is a low level security issue with fencing since one client can preempt another client's lock. This patch does not completely eliminate the issue of a client misbehaving, but certainly it adds a security layer for default use cases that does not need fencing. Change-Id: I55cd15f2ed1ae0f2556e3d27a2ef4bc10fdada1c updates: #466 Signed-off-by: Susant Palai <spalai@redhat.com>	2019-01-18 17:26:36 +05:30
Susant Palai	deea53b9fe	lock: Add fencing support ... design reference: https://review.gluster.org/#/c/glusterfs-specs/+/21925/ This patch adds the lock preempt support. Note: The current model stores lock enforcement information as separate xattr on disk. There is another effort going in parallel to store this in stat(x) of the file. This patch is self sufficient to add fencing support. Based on the availability of the stat(x) support either I will rebase this patch or we can modify the necessary bits post merging this patch. Change-Id: If4a42f3e0afaee1f66cdb0360ad4e0c005b5b017 updates: #466 Signed-off-by: Susant Palai <spalai@redhat.com>	2018-11-30 15:04:17 +05:30