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Commit 46fcb2ed authored by Eric Sandeen's avatar Eric Sandeen Committed by Steven Whitehouse
Browse files

GFS2: combine duplicated block freeing routines 



__gfs2_free_data and __gfs2_free_meta are almost identical, and
can be trivially combined.

[This is as per Eric's original patch minus gfs2_free_data() which had
 no callers left and plus the conversion of the bmap.c calls to these
 functions. All in all, a nice clean up]

Signed-off-by: default avatarEric Sandeen <sandeen@redhat.com>
Signed-off-by: default avatarSteven Whitehouse <swhiteho@redhat.com>
parent 9964afbb

fs/gfs2/bmap.c

+2 −10
Original line number Diff line number Diff line
@@ -854,11 +854,7 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh, 
			blen++;

		else {

			if (bstart) {

				if (metadata)

					__gfs2_free_meta(ip, bstart, blen);

				else

					__gfs2_free_data(ip, bstart, blen);



				__gfs2_free_blocks(ip, bstart, blen, metadata);

				btotal += blen;

			}
@@ -870,11 +866,7 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh, 
		gfs2_add_inode_blocks(&ip->i_inode, -1);

	}

	if (bstart) {

		if (metadata)

			__gfs2_free_meta(ip, bstart, blen);

		else

			__gfs2_free_data(ip, bstart, blen);



		__gfs2_free_blocks(ip, bstart, blen, metadata);

		btotal += blen;

	}

fs/gfs2/rgrp.c

+5 −47
Original line number Diff line number Diff line
@@ -1607,14 +1607,15 @@ rgrp_error: 
}



/**

 * gfs2_free_data - free a contiguous run of data block(s)

 * __gfs2_free_blocks - free a contiguous run of block(s)

 * @ip: the inode these blocks are being freed from

 * @bstart: first block of a run of contiguous blocks

 * @blen: the length of the block run

 * @meta: 1 if the blocks represent metadata

 *

 */



void __gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen)

void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta)

{

	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);

	struct gfs2_rgrpd *rgd;
@@ -1631,50 +1632,7 @@ void __gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen) 
	gfs2_trans_add_rg(rgd);



	/* Directories keep their data in the metadata address space */

	if (ip->i_depth)

		gfs2_meta_wipe(ip, bstart, blen);

}



/**

 * gfs2_free_data - free a contiguous run of data block(s)

 * @ip: the inode these blocks are being freed from

 * @bstart: first block of a run of contiguous blocks

 * @blen: the length of the block run

 *

 */



void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen)

{

	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);



	__gfs2_free_data(ip, bstart, blen);

	gfs2_statfs_change(sdp, 0, +blen, 0);

	gfs2_quota_change(ip, -(s64)blen, ip->i_inode.i_uid, ip->i_inode.i_gid);

}



/**

 * gfs2_free_meta - free a contiguous run of data block(s)

 * @ip: the inode these blocks are being freed from

 * @bstart: first block of a run of contiguous blocks

 * @blen: the length of the block run

 *

 */



void __gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen)

{

	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);

	struct gfs2_rgrpd *rgd;



	rgd = rgblk_free(sdp, bstart, blen, GFS2_BLKST_FREE);

	if (!rgd)

		return;

	trace_gfs2_block_alloc(ip, bstart, blen, GFS2_BLKST_FREE);

	rgd->rd_free += blen;



	gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);

	gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);



	gfs2_trans_add_rg(rgd);

	if (meta || ip->i_depth)

		gfs2_meta_wipe(ip, bstart, blen);

}
@@ -1690,7 +1648,7 @@ void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen) 
{

	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);



	__gfs2_free_meta(ip, bstart, blen);

	__gfs2_free_blocks(ip, bstart, blen, 1);

	gfs2_statfs_change(sdp, 0, +blen, 0);

	gfs2_quota_change(ip, -(s64)blen, ip->i_inode.i_uid, ip->i_inode.i_gid);

}

fs/gfs2/rgrp.h

+1 −3
Original line number Diff line number Diff line
@@ -52,9 +52,7 @@ extern int gfs2_ri_update(struct gfs2_inode *ip); 
extern int gfs2_alloc_block(struct gfs2_inode *ip, u64 *bn, unsigned int *n);

extern int gfs2_alloc_di(struct gfs2_inode *ip, u64 *bn, u64 *generation);



extern void __gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);

extern void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);

extern void __gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);

extern void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta);

extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);

extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);

extern void gfs2_unlink_di(struct inode *inode);