Commit 9e2dbdac authored by Steven Whitehouse's avatar Steven Whitehouse
Browse files

[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: default avatarSteven Whitehouse <swhiteho@redhat.com>
parent e7c698d7

fs/gfs2/bmap.c

+4 −0
Original line number Diff line number Diff line
@@ -163,6 +163,7 @@ int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page) 
	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 *inode, unsigned height) 
	*(__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_inode *ip, struct buffer_head *bh, 


	*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 *ip, struct buffer_head *dibh, 
		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)

fs/gfs2/dir.c

+4 −0
Original line number Diff line number Diff line
@@ -901,6 +901,7 @@ static int dir_make_exhash(struct inode *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 *inode, const struct qstr *name) 
	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 *inode, const struct qstr *name) 
		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_inode *dip, u32 index, u32 len, 
		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);

fs/gfs2/eattr.c

+6 −0
Original line number Diff line number Diff line
@@ -281,6 +281,7 @@ static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh, 
		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_inode *ip, struct buffer_head **bhp) 
	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 *ip, struct gfs2_ea_header *ea, 
			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_inode *ip, struct gfs2_ea_request *er, 
		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 gfs2_inode *ip) 
		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_inode *ip) 
	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) {

fs/gfs2/glops.c

+2 −6
Original line number Diff line number Diff line
@@ -356,7 +356,6 @@ static int inode_go_lock(struct gfs2_holder *gh) 
		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) &&
@@ -380,10 +379,7 @@ static void inode_go_unlock(struct gfs2_holder *gh) 
	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);

	if (ip)

		gfs2_meta_cache_flush(ip);

}

fs/gfs2/inode.c

+3 −18
Original line number Diff line number Diff line
@@ -38,29 +38,12 @@ 
#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_inode *ip, const void *buf) 
	 */

	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);

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