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Message-Id: <1311326214-3325-5-git-send-email-swhiteho@redhat.com>
Date: Fri, 22 Jul 2011 10:16:54 +0100
From: Steven Whitehouse <swhiteho@...hat.com>
To: linux-kernel@...r.kernel.org, cluster-devel@...hat.com
Cc: Eric Sandeen <sandeen@...hat.com>,
Steven Whitehouse <swhiteho@...hat.com>
Subject: [PATCH 4/4] GFS2: combine duplicated block freeing routines
From: Eric Sandeen <sandeen@...hat.com>
__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: Eric Sandeen <sandeen@...hat.com>
Signed-off-by: Steven Whitehouse <swhiteho@...hat.com>
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index e65493a..42e477f 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -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;
}
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 9b780df..7f8af1e 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -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;
@@ -1631,54 +1632,11 @@ 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)
+ if (meta || 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);
- gfs2_meta_wipe(ip, bstart, blen);
-}
-
-/**
* 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
@@ -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);
}
diff --git a/fs/gfs2/rgrp.h b/fs/gfs2/rgrp.h
index a80e303..d253f9a 100644
--- a/fs/gfs2/rgrp.h
+++ b/fs/gfs2/rgrp.h
@@ -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);
--
1.7.4
--
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