Merge commit 'v2.6.26' into bkl-removal

8 files changed, 33 insertions, 33 deletions

diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index c19184f2e70e..bec76b1c2bb0 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -246,15 +246,11 @@ static void find_metapath(const struct gfs2_sbd *sdp, u64 block,
 
 }
 
-static inline unsigned int zero_metapath_length(const struct metapath *mp,
-                                                unsigned height)
+static inline unsigned int metapath_branch_start(const struct metapath *mp)
 {
-        unsigned int i;
-        for (i = 0; i < height - 1; i++) {
-                if (mp->mp_list[i] != 0)
-                        return i;
-        }
-        return height;
+        if (mp->mp_list[0] == 0)
+                return 2;
+        return 1;
 }
 
 /**
@@ -436,7 +432,7 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
         struct gfs2_sbd *sdp = GFS2_SB(inode);
         struct buffer_head *dibh = mp->mp_bh[0];
         u64 bn, dblock = 0;
-        unsigned n, i, blks, alloced = 0, iblks = 0, zmpl = 0;
+        unsigned n, i, blks, alloced = 0, iblks = 0, branch_start = 0;
         unsigned dblks = 0;
         unsigned ptrs_per_blk;
         const unsigned end_of_metadata = height - 1;
@@ -471,9 +467,8 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
                         /* Building up tree height */
                         state = ALLOC_GROW_HEIGHT;
                         iblks = height - ip->i_height;
-                        zmpl = zero_metapath_length(mp, height);
-                        iblks -= zmpl;
-                        iblks += height;
+                        branch_start = metapath_branch_start(mp);
+                        iblks += (height - branch_start);
                 }
         }
 
@@ -509,13 +504,13 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
                                         sizeof(struct gfs2_meta_header));
                                 *ptr = zero_bn;
                                 state = ALLOC_GROW_DEPTH;
-                                for(i = zmpl; i < height; i++) {
+                                for(i = branch_start; i < height; i++) {
                                         if (mp->mp_bh[i] == NULL)
                                                 break;
                                         brelse(mp->mp_bh[i]);
                                         mp->mp_bh[i] = NULL;
                                 }
-                                i = zmpl;
+                                i = branch_start;
                         }
                         if (n == 0)
                                 break;
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index d31badadef8f..07d84d16cda4 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -249,7 +249,7 @@ static int inode_go_lock(struct gfs2_holder *gh)
         struct gfs2_inode *ip = gl->gl_object;
         int error = 0;
 
-        if (!ip)
+        if (!ip || (gh->gh_flags & GL_SKIP))
                 return 0;
 
         if (test_bit(GIF_INVALID, &ip->i_flags)) {
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 9c2c0b90b22a..eabe5eac41da 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -236,6 +236,7 @@ enum {
         GIF_INVALID             = 0,
         GIF_QD_LOCKED           = 1,
         GIF_SW_PAGED            = 3,
+        GIF_USER                = 4, /* user inode, not metadata addr space */
 };
 
 struct gfs2_dinode_host {
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 3a9ef526c308..09453d057e41 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -47,8 +47,7 @@ static int iget_test(struct inode *inode, void *opaque)
         struct gfs2_inode *ip = GFS2_I(inode);
         u64 *no_addr = opaque;
 
-        if (ip->i_no_addr == *no_addr &&
-            inode->i_private != NULL)
+        if (ip->i_no_addr == *no_addr && test_bit(GIF_USER, &ip->i_flags))
                 return 1;
 
         return 0;
@@ -61,6 +60,7 @@ static int iget_set(struct inode *inode, void *opaque)
 
         inode->i_ino = (unsigned long)*no_addr;
         ip->i_no_addr = *no_addr;
+        set_bit(GIF_USER, &ip->i_flags);
         return 0;
 }
 
@@ -86,7 +86,7 @@ static int iget_skip_test(struct inode *inode, void *opaque)
         struct gfs2_inode *ip = GFS2_I(inode);
         struct gfs2_skip_data *data = opaque;
 
-        if (ip->i_no_addr == data->no_addr && inode->i_private != NULL){
+        if (ip->i_no_addr == data->no_addr && test_bit(GIF_USER, &ip->i_flags)){
                 if (inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE)){
                         data->skipped = 1;
                         return 0;
@@ -105,6 +105,7 @@ static int iget_skip_set(struct inode *inode, void *opaque)
                 return 1;
         inode->i_ino = (unsigned long)(data->no_addr);
         ip->i_no_addr = data->no_addr;
+        set_bit(GIF_USER, &ip->i_flags);
         return 0;
 }
 
@@ -166,7 +167,7 @@ void gfs2_set_iop(struct inode *inode)
  * Returns: A VFS inode, or an error
  */
 
-struct inode *gfs2_inode_lookup(struct super_block *sb, 
+struct inode *gfs2_inode_lookup(struct super_block *sb,
                                 unsigned int type,
                                 u64 no_addr,
                                 u64 no_formal_ino, int skip_freeing)
@@ -187,7 +188,6 @@ struct inode *gfs2_inode_lookup(struct super_block *sb,
 
         if (inode->i_state & I_NEW) {
                 struct gfs2_sbd *sdp = GFS2_SB(inode);
-                inode->i_private = ip;
                 ip->i_no_formal_ino = no_formal_ino;
 
                 error = gfs2_glock_get(sdp, no_addr, &gfs2_inode_glops, CREATE, &ip->i_gl);
diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c
index 85aea27b4a86..78d75f892f82 100644
--- a/fs/gfs2/meta_io.c
+++ b/fs/gfs2/meta_io.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
+ * Copyright (C) 2004-2008 Red Hat, Inc.  All rights reserved.
  *
  * This copyrighted material is made available to anyone wishing to use,
  * modify, copy, or redistribute it subject to the terms and conditions
@@ -69,13 +69,15 @@ static const struct address_space_operations aspace_aops = {
 struct inode *gfs2_aspace_get(struct gfs2_sbd *sdp)
 {
         struct inode *aspace;
+        struct gfs2_inode *ip;
 
         aspace = new_inode(sdp->sd_vfs);
         if (aspace) {
                 mapping_set_gfp_mask(aspace->i_mapping, GFP_NOFS);
                 aspace->i_mapping->a_ops = &aspace_aops;
                 aspace->i_size = ~0ULL;
-                aspace->i_private = NULL;
+                ip = GFS2_I(aspace);
+                clear_bit(GIF_USER, &ip->i_flags);
                 insert_inode_hash(aspace);
         }
         return aspace;
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index ef9c6c4f80f6..b2028c82e8d1 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -142,8 +142,8 @@ static int init_names(struct gfs2_sbd *sdp, int silent)
         if (!table[0])
                 table = sdp->sd_vfs->s_id;
 
-        snprintf(sdp->sd_proto_name, GFS2_FSNAME_LEN, "%s", proto);
-        snprintf(sdp->sd_table_name, GFS2_FSNAME_LEN, "%s", table);
+        strlcpy(sdp->sd_proto_name, proto, GFS2_FSNAME_LEN);
+        strlcpy(sdp->sd_table_name, table, GFS2_FSNAME_LEN);
 
         table = sdp->sd_table_name;
         while ((table = strchr(table, '/')))
diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c
index 2278c68b7e35..0b7cc920eb89 100644
--- a/fs/gfs2/ops_super.c
+++ b/fs/gfs2/ops_super.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
+ * Copyright (C) 2004-2008 Red Hat, Inc.  All rights reserved.
  *
  * This copyrighted material is made available to anyone wishing to use,
  * modify, copy, or redistribute it subject to the terms and conditions
@@ -52,7 +52,7 @@ static int gfs2_write_inode(struct inode *inode, int sync)
         struct gfs2_inode *ip = GFS2_I(inode);
 
         /* Check this is a "normal" inode */
-        if (inode->i_private) {
+        if (test_bit(GIF_USER, &ip->i_flags)) {
                 if (current->flags & PF_MEMALLOC)
                         return 0;
                 if (sync)
@@ -297,8 +297,9 @@ static int gfs2_remount_fs(struct super_block *sb, int *flags, char *data)
  */
 static void gfs2_drop_inode(struct inode *inode)
 {
-        if (inode->i_private && inode->i_nlink) {
-                struct gfs2_inode *ip = GFS2_I(inode);
+        struct gfs2_inode *ip = GFS2_I(inode);
+
+        if (test_bit(GIF_USER, &ip->i_flags) && inode->i_nlink) {
                 struct gfs2_glock *gl = ip->i_iopen_gh.gh_gl;
                 if (gl && test_bit(GLF_DEMOTE, &gl->gl_flags))
                         clear_nlink(inode);
@@ -314,12 +315,13 @@ static void gfs2_drop_inode(struct inode *inode)
 
 static void gfs2_clear_inode(struct inode *inode)
 {
+        struct gfs2_inode *ip = GFS2_I(inode);
+
         /* This tells us its a "real" inode and not one which only
          * serves to contain an address space (see rgrp.c, meta_io.c)
          * which therefore doesn't have its own glocks.
          */
-        if (inode->i_private) {
-                struct gfs2_inode *ip = GFS2_I(inode);
+        if (test_bit(GIF_USER, &ip->i_flags)) {
                 ip->i_gl->gl_object = NULL;
                 gfs2_glock_schedule_for_reclaim(ip->i_gl);
                 gfs2_glock_put(ip->i_gl);
@@ -419,7 +421,7 @@ static void gfs2_delete_inode(struct inode *inode)
         struct gfs2_holder gh;
         int error;
 
-        if (!inode->i_private)
+        if (!test_bit(GIF_USER, &ip->i_flags))
                 goto out;
 
         error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 7e8f0b1d6c6e..3401628d742b 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -195,7 +195,7 @@ ulong_aligned:
            depending on architecture.  I've experimented with several ways
            of writing this section such as using an else before the goto
            but this one seems to be the fastest. */
-        while ((unsigned char *)plong < end - 1) {
+        while ((unsigned char *)plong < end - sizeof(unsigned long)) {
                 prefetch(plong + 1);
                 if (((*plong) & LBITMASK) != lskipval)
                         break;
@@ -1495,7 +1495,7 @@ u64 gfs2_alloc_block(struct gfs2_inode *ip, unsigned int *n)
 
         al->al_alloced += *n;
 
-        gfs2_statfs_change(sdp, 0, -*n, 0);
+        gfs2_statfs_change(sdp, 0, -(s64)*n, 0);
         gfs2_quota_change(ip, *n, ip->i_inode.i_uid, ip->i_inode.i_gid);
 
         spin_lock(&sdp->sd_rindex_spin);