[GFS2] Add gfs2_internal_read()

Add the new external read function. Its temporarily in jdata.c
even though the protoype is in ops_file.h - this will change
shortly. The current implementation will change to a page cache
one when that happens.

In order to effect the above changes, the various internal inodes
now have Linux inodes attached to them. We keep the references to
the Linux inodes, rather than the gfs2_inodes in the super block.

In order to get everything to work correctly I've had to reorder
the init sequence on mount (which I should probably have done
earlier when .gfs2_admin was made visible).

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

1 files changed, 10 insertions, 9 deletions

diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index cab7ab5fb506..bae32ba0c481 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -271,7 +271,7 @@ int gfs2_do_upgrade(struct gfs2_sbd *sdp, struct gfs2_glock *sb_gl)
 
 int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh)
 {
-        struct gfs2_inode *dip = sdp->sd_jindex;
+        struct gfs2_inode *dip = get_v2ip(sdp->sd_jindex);
         struct qstr name;
         char buf[20];
         struct gfs2_jdesc *jd;
@@ -289,7 +289,7 @@ int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh)
 
                 name.len = sprintf(buf, "journal%u", sdp->sd_journals);
 
-                error = gfs2_dir_search(sdp->sd_jindex, &name, NULL, NULL);
+                error = gfs2_dir_search(get_v2ip(sdp->sd_jindex), &name, NULL, NULL);
                 if (error == -ENOENT) {
                         error = 0;
                         break;
@@ -437,6 +437,7 @@ int gfs2_jdesc_check(struct gfs2_jdesc *jd)
 
 int gfs2_lookup_master_dir(struct gfs2_sbd *sdp)
 {
+        struct inode *inode = NULL;
         struct gfs2_glock *gl;
         int error;
 
@@ -444,8 +445,8 @@ int gfs2_lookup_master_dir(struct gfs2_sbd *sdp)
                                sdp->sd_sb.sb_master_dir.no_addr,
                                &gfs2_inode_glops, CREATE, &gl);
         if (!error) {
-                error = gfs2_inode_get(gl, &sdp->sd_sb.sb_master_dir, CREATE,
-                                       &sdp->sd_master_dir);
+                error = gfs2_lookup_simple(sdp->sd_root_dir, ".gfs2_admin", &inode);
+                sdp->sd_master_dir = inode;
                 gfs2_glock_put(gl);
         }
 
@@ -549,9 +550,9 @@ int gfs2_make_fs_ro(struct gfs2_sbd *sdp)
 
 int gfs2_statfs_init(struct gfs2_sbd *sdp)
 {
-        struct gfs2_inode *m_ip = sdp->sd_statfs_inode;
+        struct gfs2_inode *m_ip = get_v2ip(sdp->sd_statfs_inode);
         struct gfs2_statfs_change *m_sc = &sdp->sd_statfs_master;
-        struct gfs2_inode *l_ip = sdp->sd_sc_inode;
+        struct gfs2_inode *l_ip = get_v2ip(sdp->sd_sc_inode);
         struct gfs2_statfs_change *l_sc = &sdp->sd_statfs_local;
         struct buffer_head *m_bh, *l_bh;
         struct gfs2_holder gh;
@@ -598,7 +599,7 @@ int gfs2_statfs_init(struct gfs2_sbd *sdp)
 void gfs2_statfs_change(struct gfs2_sbd *sdp, int64_t total, int64_t free,
                         int64_t dinodes)
 {
-        struct gfs2_inode *l_ip = sdp->sd_sc_inode;
+        struct gfs2_inode *l_ip = get_v2ip(sdp->sd_sc_inode);
         struct gfs2_statfs_change *l_sc = &sdp->sd_statfs_local;
         struct buffer_head *l_bh;
         int error;
@@ -624,8 +625,8 @@ void gfs2_statfs_change(struct gfs2_sbd *sdp, int64_t total, int64_t free,
 
 int gfs2_statfs_sync(struct gfs2_sbd *sdp)
 {
-        struct gfs2_inode *m_ip = sdp->sd_statfs_inode;
-        struct gfs2_inode *l_ip = sdp->sd_sc_inode;
+        struct gfs2_inode *m_ip = get_v2ip(sdp->sd_statfs_inode);
+        struct gfs2_inode *l_ip = get_v2ip(sdp->sd_sc_inode);
         struct gfs2_statfs_change *m_sc = &sdp->sd_statfs_master;
         struct gfs2_statfs_change *l_sc = &sdp->sd_statfs_local;
         struct gfs2_holder gh;