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[GFS2] Further updates to dir and logging code

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This reduces the size of the directory code by about 3k and gets
readdir() to use the functions which were introduced in the previous
directory code update.

Two memory allocations are merged into one. Eliminates zeroing of some
buffers which were never used before they were initialised by
other data.

There is still scope for further improvement in the directory code.

On the logging side, a hand created mutex has been replaced by a
standard Linux mutex in the log allocation code.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Steven Whitehouse
2006-03-28 14:14:04 -05:00
parent 94aabbd993
commit 71b86f562b
15 changed files with 416 additions and 318 deletions
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fs/gfs2/ops_export.c
+4 -4
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@@ -13,6 +13,7 @@
#include <linux/completion.h>
#include <linux/buffer_head.h>
#include <linux/gfs2_ondisk.h>
#include <linux/crc32.h>
#include <asm/semaphore.h>
#include "gfs2.h"
@@ -153,7 +154,7 @@ static int gfs2_get_name(struct dentry *parent, char *name,
if (error)
return error;
error = gfs2_dir_read(dip, &offset, &gnfd, get_name_filldir);
error = gfs2_dir_read(dir, &offset, &gnfd, get_name_filldir);
gfs2_glock_dq_uninit(&gh);
@@ -165,12 +166,11 @@ static int gfs2_get_name(struct dentry *parent, char *name,
static struct dentry *gfs2_get_parent(struct dentry *child)
{
struct qstr dotdot = { .name = "..", .len = 2 };
struct qstr dotdot;
struct inode *inode;
struct dentry *dentry;
dotdot.hash = gfs2_disk_hash(dotdot.name, dotdot.len);
gfs2_str2qstr(&dotdot, "..");
inode = gfs2_lookupi(child->d_inode, &dotdot, 1, NULL);
if (!inode)