[GFS2] Remove gfs2_inode_attr_in [35/70]

From: Steven Whitehouse
Date: Thu Nov 30 2006 - 07:35:06 EST

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>From 9e2dbdac3df300516ffdd9a8631f23164d068a50 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@xxxxxxxxxx>
Date: Wed, 8 Nov 2006 15:45:46 -0500
Subject: [PATCH] [GFS2] Remove gfs2_inode_attr_in

This function wasn't really doing the right thing. There was no need
to update the inode size at this point and the updating of the
i_blocks field has now been moved to the places where di_blocks is
updated. A result of this patch and some those preceeding it is that
unlocking a glock is now a much more efficient process, since there
is no longer any requirement to copy data from the gfs2 inode into
the vfs inode at this point.

Signed-off-by: Steven Whitehouse <swhiteho@xxxxxxxxxx>
---
fs/gfs2/bmap.c | 4 ++++
fs/gfs2/dir.c | 4 ++++
fs/gfs2/eattr.c | 6 ++++++
fs/gfs2/glops.c | 8 ++------
fs/gfs2/inode.c | 21 +++------------------
fs/gfs2/inode.h | 7 +++++++
6 files changed, 26 insertions(+), 24 deletions(-)

diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 692d4a3..06e3447 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -163,6 +163,7 @@ int gfs2_unstuff_dinode(struct gfs2_inod
if (ip->i_di.di_size) {
*(__be64 *)(di + 1) = cpu_to_be64(block);
ip->i_di.di_blocks++;
+ gfs2_set_inode_blocks(&ip->i_inode);
di->di_blocks = cpu_to_be64(ip->i_di.di_blocks);
}

@@ -272,6 +273,7 @@ static int build_height(struct inode *in
*(__be64 *)(di + 1) = cpu_to_be64(bn);
ip->i_di.di_height += new_height;
ip->i_di.di_blocks += new_height;
+ gfs2_set_inode_blocks(&ip->i_inode);
di->di_height = cpu_to_be16(ip->i_di.di_height);
di->di_blocks = cpu_to_be64(ip->i_di.di_blocks);
brelse(dibh);
@@ -415,6 +417,7 @@ static int lookup_block(struct gfs2_inod

*ptr = cpu_to_be64(*block);
ip->i_di.di_blocks++;
+ gfs2_set_inode_blocks(&ip->i_inode);

*new = 1;
return 0;
@@ -770,6 +773,7 @@ static int do_strip(struct gfs2_inode *i
if (!ip->i_di.di_blocks)
gfs2_consist_inode(ip);
ip->i_di.di_blocks--;
+ gfs2_set_inode_blocks(&ip->i_inode);
}
if (bstart) {
if (metadata)
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index c82d7cb..a2923fb 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -901,6 +901,7 @@ static int dir_make_exhash(struct inode

dip->i_di.di_size = sdp->sd_sb.sb_bsize / 2;
dip->i_di.di_blocks++;
+ gfs2_set_inode_blocks(&dip->i_inode);
dip->i_di.di_flags |= GFS2_DIF_EXHASH;

for (x = sdp->sd_hash_ptrs, y = -1; x; x >>= 1, y++) ;
@@ -1038,6 +1039,7 @@ static int dir_split_leaf(struct inode *
error = gfs2_meta_inode_buffer(dip, &dibh);
if (!gfs2_assert_withdraw(GFS2_SB(&dip->i_inode), !error)) {
dip->i_di.di_blocks++;
+ gfs2_set_inode_blocks(&dip->i_inode);
gfs2_dinode_out(dip, dibh->b_data);
brelse(dibh);
}
@@ -1516,6 +1518,7 @@ static int dir_new_leaf(struct inode *in
return error;
gfs2_trans_add_bh(ip->i_gl, bh, 1);
ip->i_di.di_blocks++;
+ gfs2_set_inode_blocks(&ip->i_inode);
gfs2_dinode_out(ip, bh->b_data);
brelse(bh);
return 0;
@@ -1860,6 +1863,7 @@ static int leaf_dealloc(struct gfs2_inod
if (!dip->i_di.di_blocks)
gfs2_consist_inode(dip);
dip->i_di.di_blocks--;
+ gfs2_set_inode_blocks(&dip->i_inode);
}

error = gfs2_dir_write_data(dip, ht, index * sizeof(u64), size);
diff --git a/fs/gfs2/eattr.c b/fs/gfs2/eattr.c
index 7dde847..ebebbdc 100644
--- a/fs/gfs2/eattr.c
+++ b/fs/gfs2/eattr.c
@@ -281,6 +281,7 @@ static int ea_dealloc_unstuffed(struct g
if (!ip->i_di.di_blocks)
gfs2_consist_inode(ip);
ip->i_di.di_blocks--;
+ gfs2_set_inode_blocks(&ip->i_inode);
}
if (bstart)
gfs2_free_meta(ip, bstart, blen);
@@ -598,6 +599,7 @@ static int ea_alloc_blk(struct gfs2_inod
ea->ea_num_ptrs = 0;

ip->i_di.di_blocks++;
+ gfs2_set_inode_blocks(&ip->i_inode);

return 0;
}
@@ -649,6 +651,7 @@ static int ea_write(struct gfs2_inode *i
gfs2_metatype_set(bh, GFS2_METATYPE_ED, GFS2_FORMAT_ED);

ip->i_di.di_blocks++;
+ gfs2_set_inode_blocks(&ip->i_inode);

copy = data_len > sdp->sd_jbsize ? sdp->sd_jbsize :
data_len;
@@ -977,6 +980,7 @@ static int ea_set_block(struct gfs2_inod
ip->i_di.di_eattr = blk;
ip->i_di.di_flags |= GFS2_DIF_EA_INDIRECT;
ip->i_di.di_blocks++;
+ gfs2_set_inode_blocks(&ip->i_inode);

eablk++;
}
@@ -1387,6 +1391,7 @@ static int ea_dealloc_indirect(struct gf
if (!ip->i_di.di_blocks)
gfs2_consist_inode(ip);
ip->i_di.di_blocks--;
+ gfs2_set_inode_blocks(&ip->i_inode);
}
if (bstart)
gfs2_free_meta(ip, bstart, blen);
@@ -1441,6 +1446,7 @@ static int ea_dealloc_block(struct gfs2_
if (!ip->i_di.di_blocks)
gfs2_consist_inode(ip);
ip->i_di.di_blocks--;
+ gfs2_set_inode_blocks(&ip->i_inode);

error = gfs2_meta_inode_buffer(ip, &dibh);
if (!error) {
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index 9c20337..b92de0a 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -356,7 +356,6 @@ static int inode_go_lock(struct gfs2_hol
error = gfs2_inode_refresh(ip);
if (error)
return error;
- gfs2_inode_attr_in(ip);
}

if ((ip->i_di.di_flags & GFS2_DIF_TRUNC_IN_PROG) &&
@@ -380,11 +379,8 @@ static void inode_go_unlock(struct gfs2_
struct gfs2_glock *gl = gh->gh_gl;
struct gfs2_inode *ip = gl->gl_object;

- if (ip == NULL)
- return;
- if (test_bit(GLF_DIRTY, &gl->gl_flags))
- gfs2_inode_attr_in(ip);
- gfs2_meta_cache_flush(ip);
+ if (ip)
+ gfs2_meta_cache_flush(ip);
}

/**
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 19b2736..ea9ca23 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -38,29 +38,12 @@ #include "rgrp.h"
#include "trans.h"
#include "util.h"

-/**
- * gfs2_inode_attr_in - Copy attributes from the dinode into the VFS inode
- * @ip: The GFS2 inode (with embedded disk inode data)
- * @inode: The Linux VFS inode
- *
- */
-
-void gfs2_inode_attr_in(struct gfs2_inode *ip)
-{
- struct inode *inode = &ip->i_inode;
- struct gfs2_dinode_host *di = &ip->i_di;
-
- i_size_write(inode, di->di_size);
- inode->i_blocks = di->di_blocks <<
- (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT);
-}
-
static int iget_test(struct inode *inode, void *opaque)
{
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_inum_host *inum = opaque;

- if (ip && ip->i_num.no_addr == inum->no_addr)
+ if (ip->i_num.no_addr == inum->no_addr)
return 1;

return 0;
@@ -187,7 +170,9 @@ static int gfs2_dinode_in(struct gfs2_in
*/
ip->i_inode.i_nlink = be32_to_cpu(str->di_nlink);
di->di_size = be64_to_cpu(str->di_size);
+ i_size_write(&ip->i_inode, di->di_size);
di->di_blocks = be64_to_cpu(str->di_blocks);
+ gfs2_set_inode_blocks(&ip->i_inode);
ip->i_inode.i_atime.tv_sec = be64_to_cpu(str->di_atime);
ip->i_inode.i_atime.tv_nsec = 0;
ip->i_inode.i_mtime.tv_sec = be64_to_cpu(str->di_mtime);
diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index 54d584e..46917ed 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -25,6 +25,13 @@ static inline int gfs2_is_dir(struct gfs
return S_ISDIR(ip->i_inode.i_mode);
}

+static inline void gfs2_set_inode_blocks(struct inode *inode)
+{
+ struct gfs2_inode *ip = GFS2_I(inode);
+ inode->i_blocks = ip->i_di.di_blocks <<
+ (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT);
+}
+
void gfs2_inode_attr_in(struct gfs2_inode *ip);
struct inode *gfs2_inode_lookup(struct super_block *sb, struct gfs2_inum_host *inum, unsigned type);
struct inode *gfs2_ilookup(struct super_block *sb, struct gfs2_inum_host *inum);
--
1.4.1

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Next message: Steven Whitehouse: "[GFS2] Tidy up 0 initialisations in inode.c [29/70]"
Previous message: Steven Whitehouse: "[GFS2] Fix page lock/glock deadlock [32/70]"
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