davidlt/kernel-ark
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
24c19ef404
kernel-ark/fs/ocfs2
History
Mark Fasheh 24c19ef404 ocfs2: Remove i_generation from inode lock names 
OCFS2 puts inode meta data in the "lock value block" provided by the DLM.
Typically, i_generation is encoded in the lock name so that a deleted inode
on and a new one in the same block don't share the same lvb.

Unfortunately, that scheme means that the read in ocfs2_read_locked_inode()
is potentially thrown away as soon as the meta data lock is taken - we
cannot encode the lock name without first knowing i_generation, which
requires a disk read.

This patch encodes i_generation in the inode meta data lvb, and removes the
value from the inode meta data lock name. This way, the read can be covered
by a lock, and at the same time we can distinguish between an up to date and
a stale LVB.

This will help cold-cache stat(2) performance in particular.

Since this patch changes the protocol version, we take the opportunity to do
a minor re-organization of two of the LVB fields.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-24 13:50:46 -07:00
..
cluster ocfs2: Remove i_generation from inode lock names 2006-09-24 13:50:46 -07:00
dlm ocfs2: Update dlmfs for new dlmlock() API 2006-09-24 13:50:42 -07:00
alloc.c ocfs2: Remove overzealous BUG_ON() 2006-09-20 16:00:54 -07:00
alloc.h [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
aops.c ocfs2: properly update i_mtime on buffered write 2006-09-20 15:53:05 -07:00
aops.h ocfs2: take data locks around extend 2006-05-17 14:38:47 -07:00
buffer_head_io.c ocfs2: implement directory read-ahead 2006-09-20 15:53:40 -07:00
buffer_head_io.h ocfs2: implement directory read-ahead 2006-09-20 15:53:40 -07:00
dcache.c ocfs2: Remove special casing for inode creation in ocfs2_dentry_attach_lock() 2006-09-24 13:50:45 -07:00
dcache.h ocfs2: Remove special casing for inode creation in ocfs2_dentry_attach_lock() 2006-09-24 13:50:45 -07:00
dir.c ocfs2: implement directory read-ahead 2006-09-20 15:53:40 -07:00
dir.h [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
dlmglue.c ocfs2: Remove i_generation from inode lock names 2006-09-24 13:50:46 -07:00
dlmglue.h ocfs2: Remove i_generation from inode lock names 2006-09-24 13:50:46 -07:00
endian.h [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
export.c ocfs2: Remove i_generation from inode lock names 2006-09-24 13:50:46 -07:00
export.h [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
extent_map.c ocfs2: silence -EEXIST from ocfs2_extent_map_insert/lookup 2006-06-29 15:52:56 -07:00
extent_map.h [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
file.c ocfs2: add ext2 attributes 2006-09-20 15:48:39 -07:00
file.h [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
heartbeat.c [PATCH] ocfs2: fix orphan recovery deadlock 2006-03-01 11:32:41 -08:00
heartbeat.h [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
inode.c ocfs2: Remove i_generation from inode lock names 2006-09-24 13:50:46 -07:00
inode.h ocfs2: Remove i_generation from inode lock names 2006-09-24 13:50:46 -07:00
ioctl.c [PATCH] fs/ocfs2/ioctl.c should #include "ioctl.h" 2006-09-20 15:49:33 -07:00
ioctl.h ocfs2: add ext2 attributes 2006-09-20 15:48:39 -07:00
journal.c ocfs2: Remove i_generation from inode lock names 2006-09-24 13:50:46 -07:00
journal.h [PATCH] ocfs2: only checkpoint journal when asked to 2006-02-16 12:04:10 -08:00
localalloc.c ocfs2: allocation hints 2006-08-07 11:07:01 -07:00
localalloc.h [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
Makefile ocfs2: add ext2 attributes 2006-09-20 15:48:39 -07:00
mmap.c ocfs2: Compile-time disabling of ocfs2 debugging output. 2006-06-29 14:48:30 -07:00
mmap.h [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
namei.c ocfs2: Remove i_generation from inode lock names 2006-09-24 13:50:46 -07:00
namei.h [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
ocfs1_fs_compat.h [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
ocfs2_fs.h ocfs2: add ext2 attributes 2006-09-20 15:48:39 -07:00
ocfs2_lockid.h ocfs2: Add new cluster lock type 2006-09-24 13:50:42 -07:00
ocfs2.h ocfs2: allocation hints 2006-08-07 11:07:01 -07:00
slot_map.c ocfs2: silence a debug print 2006-06-29 16:03:17 -07:00
slot_map.h [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
suballoc.c ocfs2: allocation hints 2006-08-07 11:07:01 -07:00
suballoc.h ocfs2: allocation hints 2006-08-07 11:07:01 -07:00
super.c ocfs2: Remove i_generation from inode lock names 2006-09-24 13:50:46 -07:00
super.h ocfs2: use __attribute__ format 2006-03-24 14:58:24 -08:00
symlink.c ocfs2: silence ENOENT during lookup of broken links 2006-06-29 15:59:52 -07:00
symlink.h [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
sysfile.c ocfs2: Remove i_generation from inode lock names 2006-09-24 13:50:46 -07:00
sysfile.h [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
uptodate.c ocfs2: implement directory read-ahead 2006-09-20 15:53:40 -07:00
uptodate.h ocfs2: implement directory read-ahead 2006-09-20 15:53:40 -07:00
ver.c [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
ver.h [PATCH] OCFS2: The Second Oracle Cluster Filesystem 2006-01-03 11:45:47 -08:00
vote.c ocfs2: Remove the dentry vote 2006-09-24 13:50:43 -07:00
vote.h ocfs2: Remove the dentry vote 2006-09-24 13:50:43 -07:00