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authorSteven Whitehouse <swhiteho@redhat.com>2009-01-12 10:43:39 +0000
committerSteven Whitehouse <steve@dolmen.chygwyn.com>2009-03-24 11:21:14 +0000
commitf057f6cdf64175db1151b1f5d110e29904f119a1 (patch)
tree582dbf358e351f64977620c29ebf772d693b1948 /fs/gfs2/main.c
parent22077f57dec8fcbeb1112b35313961c0902ff038 (diff)
downloadop-kernel-dev-f057f6cdf64175db1151b1f5d110e29904f119a1.zip
op-kernel-dev-f057f6cdf64175db1151b1f5d110e29904f119a1.tar.gz
GFS2: Merge lock_dlm module into GFS2
This is the big patch that I've been working on for some time now. There are many reasons for wanting to make this change such as: o Reducing overhead by eliminating duplicated fields between structures o Simplifcation of the code (reduces the code size by a fair bit) o The locking interface is now the DLM interface itself as proposed some time ago. o Fewer lookups of glocks when processing replies from the DLM o Fewer memory allocations/deallocations for each glock o Scope to do further optimisations in the future (but this patch is more than big enough for now!) Please note that (a) this patch relates to the lock_dlm module and not the DLM itself, that is still a separate module; and (b) that we retain the ability to build GFS2 as a standalone single node filesystem with out requiring the DLM. This patch needs a lot of testing, hence my keeping it I restarted my -git tree after the last merge window. That way, this has the maximum exposure before its merged. This is (modulo a few minor bug fixes) the same patch that I've been posting on and off the the last three months and its passed a number of different tests so far. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/main.c')
-rw-r--r--fs/gfs2/main.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index 86fe067..a6892ed 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -14,7 +14,6 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
#include <asm/atomic.h>
#include "gfs2.h"
@@ -47,8 +46,6 @@ static void gfs2_init_glock_once(void *foo)
INIT_HLIST_NODE(&gl->gl_list);
spin_lock_init(&gl->gl_spin);
INIT_LIST_HEAD(&gl->gl_holders);
- gl->gl_lvb = NULL;
- atomic_set(&gl->gl_lvb_count, 0);
INIT_LIST_HEAD(&gl->gl_lru);
INIT_LIST_HEAD(&gl->gl_ail_list);
atomic_set(&gl->gl_ail_count, 0);
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