GFS2: Clean up mkdir

This moves the initialisation of the directory into the inode
creation functions to avoid having to duplicate the lookup
of the inode's buffer.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index a783a7a8c0cad9cfee231733a7fc192083331e03..4aee9dd464f7ddb79088180ff993ffd1b1d63993 100644 (file)
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -413,6 +413,22 @@ out:
        return error;
 }
 
+static void gfs2_init_dir(struct buffer_head *dibh, const struct gfs2_inode *parent)
+{
+       struct gfs2_dinode *di = (struct gfs2_dinode *)dibh->b_data;
+       struct gfs2_dirent *dent = (struct gfs2_dirent *)(di+1);
+
+       gfs2_qstr2dirent(&gfs2_qdot, GFS2_DIRENT_SIZE(gfs2_qdot.len), dent);
+       dent->de_inum = di->di_num; /* already GFS2 endian */
+       dent->de_type = cpu_to_be16(DT_DIR);
+
+       dent = (struct gfs2_dirent *)((char*)dent + GFS2_DIRENT_SIZE(1));
+       gfs2_qstr2dirent(&gfs2_qdotdot, dibh->b_size - GFS2_DIRENT_SIZE(1) - sizeof(struct gfs2_dinode), dent);
+       gfs2_inum_out(parent, dent);
+       dent->de_type = cpu_to_be16(DT_DIR);
+       
+}
+
 /**
  * init_dinode - Fill in a new dinode structure
  * @dip: the directory this inode is being created in
@@ -454,16 +470,6 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
        di->di_goal_meta = di->di_goal_data = cpu_to_be64(inum->no_addr);
        di->di_generation = cpu_to_be64(*generation);
        di->di_flags = 0;
-
-       if (S_ISREG(mode)) {
-               if ((dip->i_diskflags & GFS2_DIF_INHERIT_JDATA) ||
-                   gfs2_tune_get(sdp, gt_new_files_jdata))
-                       di->di_flags |= cpu_to_be32(GFS2_DIF_JDATA);
-       } else if (S_ISDIR(mode)) {
-               di->di_flags |= cpu_to_be32(dip->i_diskflags &
-                                           GFS2_DIF_INHERIT_JDATA);
-       }
-
        di->__pad1 = 0;
        di->di_payload_format = cpu_to_be32(S_ISDIR(mode) ? GFS2_FORMAT_DE : 0);
        di->di_height = 0;
@@ -478,6 +484,19 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
        di->di_ctime_nsec = cpu_to_be32(tv.tv_nsec);
        memset(&di->di_reserved, 0, sizeof(di->di_reserved));
        
+       if (S_ISREG(mode)) {
+               if ((dip->i_diskflags & GFS2_DIF_INHERIT_JDATA) ||
+                   gfs2_tune_get(sdp, gt_new_files_jdata))
+                       di->di_flags |= cpu_to_be32(GFS2_DIF_JDATA);
+       } else if (S_ISDIR(mode)) {
+               di->di_flags |= cpu_to_be32(dip->i_diskflags &
+                                           GFS2_DIF_INHERIT_JDATA);
+               di->di_flags |= cpu_to_be32(GFS2_DIF_JDATA);
+               di->di_size = cpu_to_be64(sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode));
+               di->di_entries = cpu_to_be32(2);
+               gfs2_init_dir(dibh, dip);
+       }
+
        set_buffer_uptodate(dibh);
 
        *bhp = dibh;
@@ -568,7 +587,9 @@ static int link_dinode(struct gfs2_inode *dip, const struct qstr *name,
        error = gfs2_meta_inode_buffer(ip, &dibh);
        if (error)
                goto fail_end_trans;
-       ip->i_inode.i_nlink = 1;
+       inc_nlink(&ip->i_inode);
+       if (S_ISDIR(ip->i_inode.i_mode))
+               inc_nlink(&ip->i_inode);
        gfs2_trans_add_bh(ip->i_gl, dibh, 1);
        gfs2_dinode_out(ip, dibh->b_data);
        brelse(dibh);
@@ -1178,12 +1199,10 @@ static int gfs2_symlink(struct inode *dir, struct dentry *dentry,
 
 static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 {
-       struct gfs2_inode *dip = GFS2_I(dir), *ip;
+       struct gfs2_inode *dip = GFS2_I(dir);
        struct gfs2_sbd *sdp = GFS2_SB(dir);
        struct gfs2_holder ghs[2];
        struct inode *inode;
-       struct buffer_head *dibh;
-       int error;
 
        gfs2_holder_init(dip->i_gl, 0, 0, ghs);
 
@@ -1193,36 +1212,6 @@ static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode)
                return PTR_ERR(inode);
        }
 
-       ip = ghs[1].gh_gl->gl_object;
-
-       ip->i_inode.i_nlink = 2;
-       i_size_write(inode, sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode));
-       ip->i_diskflags |= GFS2_DIF_JDATA;
-       ip->i_entries = 2;
-
-       error = gfs2_meta_inode_buffer(ip, &dibh);
-
-       if (!gfs2_assert_withdraw(sdp, !error)) {
-               struct gfs2_dinode *di = (struct gfs2_dinode *)dibh->b_data;
-               struct gfs2_dirent *dent = (struct gfs2_dirent *)(di+1);
-
-               gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-               gfs2_qstr2dirent(&gfs2_qdot, GFS2_DIRENT_SIZE(gfs2_qdot.len), dent);
-               dent->de_inum = di->di_num; /* already GFS2 endian */
-               dent->de_type = cpu_to_be16(DT_DIR);
-               di->di_entries = cpu_to_be32(1);
-
-               dent = (struct gfs2_dirent *)((char*)dent + GFS2_DIRENT_SIZE(1));
-               gfs2_qstr2dirent(&gfs2_qdotdot, dibh->b_size - GFS2_DIRENT_SIZE(1) - sizeof(struct gfs2_dinode), dent);
-
-               gfs2_inum_out(dip, dent);
-               dent->de_type = cpu_to_be16(DT_DIR);
-
-               gfs2_dinode_out(ip, di);
-
-               brelse(dibh);
-       }
-
        gfs2_trans_end(sdp);
        if (dip->i_alloc->al_rgd)
                gfs2_inplace_release(dip);