staging/lustre/llite: extended attribute cache
authorAndrew Perepechko <andrew_perepechko@xyratex.com>
Tue, 3 Dec 2013 13:58:49 +0000 (21:58 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 3 Dec 2013 16:45:29 +0000 (08:45 -0800)
commit7fc1f831d83f5abfebab964a6bdbc057ff1205a6
treee64d1bcc4947bca97ed962ef5e04d50a1382bf07
parent48d23e612721d7e08dd8b13f5b8fbd12c6f88181
staging/lustre/llite: extended attribute cache

This patch implements an extended attribute cache for
a Lustre client. It is organized as a write-through
cache: reads are performed from cache, updates are sent
synchronously to the MDS. An additional inode bit
MDS_INODELOCK_XATTR is added to protect the cache.

Lustre-change: http://review.whamcloud.com/5537
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2869
Signed-off-by: Andrew Perepechko <andrew_perepechko@xyratex.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
[remove extra GPL notice in original patch as kernel already has one
and it causes checkpatch error. -- Peng Tao]
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
19 files changed:
drivers/staging/lustre/lustre/include/linux/lustre_lite.h
drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
drivers/staging/lustre/lustre/include/lustre_req_layout.h
drivers/staging/lustre/lustre/include/md_object.h
drivers/staging/lustre/lustre/include/obd.h
drivers/staging/lustre/lustre/include/obd_support.h
drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
drivers/staging/lustre/lustre/llite/Makefile
drivers/staging/lustre/lustre/llite/file.c
drivers/staging/lustre/lustre/llite/llite_internal.h
drivers/staging/lustre/lustre/llite/llite_lib.c
drivers/staging/lustre/lustre/llite/lproc_llite.c
drivers/staging/lustre/lustre/llite/namei.c
drivers/staging/lustre/lustre/llite/super25.c
drivers/staging/lustre/lustre/llite/xattr.c
drivers/staging/lustre/lustre/llite/xattr_cache.c [new file with mode: 0644]
drivers/staging/lustre/lustre/mdc/mdc_internal.h
drivers/staging/lustre/lustre/mdc/mdc_locks.c
drivers/staging/lustre/lustre/ptlrpc/layout.c