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Commit 07446dc7 authored by Joel Becker's avatar Joel Becker Committed by Mark Fasheh
Browse files

ocfs2: Move ocfs2_bread() into dir.c 



dir.c is the only place using ocfs2_bread(), so let's make it static to
that file.

Signed-off-by: default avatarJoel Becker <joel.becker@oracle.com>
Signed-off-by: default avatarMark Fasheh <mfasheh@suse.com>
parent 0fcaa56a

fs/ocfs2/dir.c

+43 −0
Original line number Diff line number Diff line
@@ -82,6 +82,49 @@ static int ocfs2_do_extend_dir(struct super_block *sb, 
			       struct ocfs2_alloc_context *meta_ac,

			       struct buffer_head **new_bh);



static struct buffer_head *ocfs2_bread(struct inode *inode,

				       int block, int *err, int reada)

{

	struct buffer_head *bh = NULL;

	int tmperr;

	u64 p_blkno;

	int readflags = OCFS2_BH_CACHED;



	if (reada)

		readflags |= OCFS2_BH_READAHEAD;



	if (((u64)block << inode->i_sb->s_blocksize_bits) >=

	    i_size_read(inode)) {

		BUG_ON(!reada);

		return NULL;

	}



	down_read(&OCFS2_I(inode)->ip_alloc_sem);

	tmperr = ocfs2_extent_map_get_blocks(inode, block, &p_blkno, NULL,

					     NULL);

	up_read(&OCFS2_I(inode)->ip_alloc_sem);

	if (tmperr < 0) {

		mlog_errno(tmperr);

		goto fail;

	}



	tmperr = ocfs2_read_blocks(inode, p_blkno, 1, &bh, readflags);

	if (tmperr < 0)

		goto fail;



	tmperr = 0;



	*err = 0;

	return bh;



fail:

	brelse(bh);

	bh = NULL;



	*err = -EIO;

	return NULL;

}



/*

 * bh passed here can be an inode block or a dir data block, depending

 * on the inode inline data flag.

fs/ocfs2/inode.c

+0 −50
Original line number Diff line number Diff line
@@ -1132,56 +1132,6 @@ void ocfs2_drop_inode(struct inode *inode) 
	mlog_exit_void();

}



/*

 * TODO: this should probably be merged into ocfs2_get_block

 *

 * However, you now need to pay attention to the cont_prepare_write()

 * stuff in ocfs2_get_block (that is, ocfs2_get_block pretty much

 * expects never to extend).

 */

struct buffer_head *ocfs2_bread(struct inode *inode,

				int block, int *err, int reada)

{

	struct buffer_head *bh = NULL;

	int tmperr;

	u64 p_blkno;

	int readflags = OCFS2_BH_CACHED;



	if (reada)

		readflags |= OCFS2_BH_READAHEAD;



	if (((u64)block << inode->i_sb->s_blocksize_bits) >=

	    i_size_read(inode)) {

		BUG_ON(!reada);

		return NULL;

	}



	down_read(&OCFS2_I(inode)->ip_alloc_sem);

	tmperr = ocfs2_extent_map_get_blocks(inode, block, &p_blkno, NULL,

					     NULL);

	up_read(&OCFS2_I(inode)->ip_alloc_sem);

	if (tmperr < 0) {

		mlog_errno(tmperr);

		goto fail;

	}



	tmperr = ocfs2_read_blocks(inode, p_blkno, 1, &bh, readflags);

	if (tmperr < 0)

		goto fail;



	tmperr = 0;



	*err = 0;

	return bh;



fail:

	brelse(bh);

	bh = NULL;



	*err = -EIO;

	return NULL;

}



/*

 * This is called from our getattr.

 */

fs/ocfs2/inode.h

+0 −2
Original line number Diff line number Diff line
@@ -117,8 +117,6 @@ extern struct kmem_cache *ocfs2_inode_cache; 


extern const struct address_space_operations ocfs2_aops;



struct buffer_head *ocfs2_bread(struct inode *inode, int block,

				int *err, int reada);

void ocfs2_clear_inode(struct inode *inode);

void ocfs2_delete_inode(struct inode *inode);

void ocfs2_drop_inode(struct inode *inode);