7 files changed, 71 insertions, 54 deletions

diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 00a94d5866c2..7aac2025ba9c 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -379,26 +379,28 @@ restart:
         bad = 0;
         prev = NULL;
 
-        printk("Block Allocation Reservation Windows Map (%s):\n", fn);
+        printk(KERN_DEBUG "Block Allocation Reservation "
+               "Windows Map (%s):\n", fn);
         while (n) {
                 rsv = rb_entry(n, struct ext4_reserve_window_node, rsv_node);
                 if (verbose)
-                        printk("reservation window 0x%p "
+                        printk(KERN_DEBUG "reservation window 0x%p "
                                "start:  %llu, end:  %llu\n",
                                rsv, rsv->rsv_start, rsv->rsv_end);
                 if (rsv->rsv_start && rsv->rsv_start >= rsv->rsv_end) {
-                        printk("Bad reservation %p (start >= end)\n",
+                        printk(KERN_DEBUG "Bad reservation %p (start >= end)\n",
                                rsv);
                         bad = 1;
                 }
                 if (prev && prev->rsv_end >= rsv->rsv_start) {
-                        printk("Bad reservation %p (prev->end >= start)\n",
-                               rsv);
+                        printk(KERN_DEBUG "Bad reservation %p "
+                               "(prev->end >= start)\n", rsv);
                         bad = 1;
                 }
                 if (bad) {
                         if (!verbose) {
-                                printk("Restarting reservation walk in verbose mode\n");
+                                printk(KERN_DEBUG "Restarting reservation "
+                                       "walk in verbose mode\n");
                                 verbose = 1;
                                 goto restart;
                         }
@@ -406,7 +408,7 @@ restart:
                 n = rb_next(n);
                 prev = rsv;
         }
-        printk("Window map complete.\n");
+        printk(KERN_DEBUG "Window map complete.\n");
         BUG_ON(bad);
 }
 #define rsv_window_dump(root, verbose) \
@@ -1702,7 +1704,7 @@ ext4_fsblk_t ext4_old_new_blocks(handle_t *handle, struct inode *inode,
         sb = inode->i_sb;
         if (!sb) {
                 *errp = -ENODEV;
-                printk("ext4_new_block: nonexistent device");
+                printk(KERN_ERR "ext4_new_block: nonexistent superblock");
                 return 0;
         }
 
@@ -1884,8 +1886,8 @@ allocated:
                 for (i = 0; i < num; i++) {
                         if (ext4_test_bit(grp_alloc_blk+i,
                                         bh2jh(bitmap_bh)->b_committed_data)) {
-                                printk("%s: block was unexpectedly set in "
-                                        "b_committed_data\n", __func__);
+                                printk(KERN_ERR "%s: block was unexpectedly "
+                                       "set in b_committed_data\n", __func__);
                         }
                 }
         }
@@ -2093,10 +2095,9 @@ ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb)
                 bitmap_count += x;
         }
         brelse(bitmap_bh);
-        printk("ext4_count_free_blocks: stored = %llu"
-                ", computed = %llu, %llu\n",
-                ext4_free_blocks_count(es),
-                desc_count, bitmap_count);
+        printk(KERN_DEBUG "ext4_count_free_blocks: stored = %llu"
+                ", computed = %llu, %llu\n", ext4_free_blocks_count(es),
+               desc_count, bitmap_count);
         return bitmap_count;
 #else
         desc_count = 0;
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index ec8e33b45219..ac873dbf0dd0 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -400,7 +400,8 @@ static int call_filldir(struct file * filp, void * dirent,
         sb = inode->i_sb;
 
         if (!fname) {
-                printk("call_filldir: called with null fname?!?\n");
+                printk(KERN_ERR "ext4: call_filldir: called with "
+                       "null fname?!?\n");
                 return 0;
         }
         curr_pos = hash2pos(fname->hash, fname->minor_hash);
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index b24d3c53f20c..a8db7fdf9cb7 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -440,9 +440,10 @@ ext4_ext_binsearch_idx(struct inode *inode,
                 for (k = 0; k < le16_to_cpu(eh->eh_entries); k++, ix++) {
                   if (k != 0 &&
                       le32_to_cpu(ix->ei_block) <= le32_to_cpu(ix[-1].ei_block)) {
-                                printk("k=%d, ix=0x%p, first=0x%p\n", k,
-                                        ix, EXT_FIRST_INDEX(eh));
-                                printk("%u <= %u\n",
+                                printk(KERN_DEBUG "k=%d, ix=0x%p, "
+                                       "first=0x%p\n", k,
+                                       ix, EXT_FIRST_INDEX(eh));
+                                printk(KERN_DEBUG "%u <= %u\n",
                                        le32_to_cpu(ix->ei_block),
                                        le32_to_cpu(ix[-1].ei_block));
                         }
@@ -2142,7 +2143,7 @@ void ext4_ext_init(struct super_block *sb)
          */
 
         if (test_opt(sb, EXTENTS)) {
-                printk("EXT4-fs: file extents enabled");
+                printk(KERN_INFO "EXT4-fs: file extents enabled");
 #ifdef AGGRESSIVE_TEST
                 printk(", aggressive tests");
 #endif
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index f344834bbf58..45c66a03f182 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -170,17 +170,18 @@ void ext4_free_inode (handle_t *handle, struct inode * inode)
         ext4_group_t flex_group;
 
         if (atomic_read(&inode->i_count) > 1) {
-                printk ("ext4_free_inode: inode has count=%d\n",
-                                        atomic_read(&inode->i_count));
+                printk(KERN_ERR "ext4_free_inode: inode has count=%d\n",
+                       atomic_read(&inode->i_count));
                 return;
         }
         if (inode->i_nlink) {
-                printk ("ext4_free_inode: inode has nlink=%d\n",
-                        inode->i_nlink);
+                printk(KERN_ERR "ext4_free_inode: inode has nlink=%d\n",
+                       inode->i_nlink);
                 return;
         }
         if (!sb) {
-                printk("ext4_free_inode: inode on nonexistent device\n");
+                printk(KERN_ERR "ext4_free_inode: inode on "
+                       "nonexistent device\n");
                 return;
         }
         sbi = EXT4_SB(sb);
@@ -989,8 +990,9 @@ unsigned long ext4_count_free_inodes (struct super_block * sb)
                 bitmap_count += x;
         }
         brelse(bitmap_bh);
-        printk("ext4_count_free_inodes: stored = %u, computed = %lu, %lu\n",
-                le32_to_cpu(es->s_free_inodes_count), desc_count, bitmap_count);
+        printk(KERN_DEBUG "ext4_count_free_inodes: "
+               "stored = %u, computed = %lu, %lu\n",
+               le32_to_cpu(es->s_free_inodes_count), desc_count, bitmap_count);
         return desc_count;
 #else
         desc_count = 0;
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index e0e3a5eb1ddb..0db2ccfa0dad 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -477,9 +477,10 @@ static void mb_cmp_bitmaps(struct ext4_buddy *e4b, void *bitmap)
                 b2 = (unsigned char *) bitmap;
                 for (i = 0; i < e4b->bd_sb->s_blocksize; i++) {
                         if (b1[i] != b2[i]) {
-                                printk("corruption in group %lu at byte %u(%u):"
-                                       " %x in copy != %x on disk/prealloc\n",
-                                        e4b->bd_group, i, i * 8, b1[i], b2[i]);
+                                printk(KERN_ERR "corruption in group %lu "
+                                       "at byte %u(%u): %x in copy != %x "
+                                       "on disk/prealloc\n",
+                                       e4b->bd_group, i, i * 8, b1[i], b2[i]);
                                 BUG();
                         }
                 }
@@ -2560,7 +2561,7 @@ int ext4_mb_init(struct super_block *sb, int needs_recovery)
         ext4_mb_init_per_dev_proc(sb);
         ext4_mb_history_init(sb);
 
-        printk("EXT4-fs: mballoc enabled\n");
+        printk(KERN_INFO "EXT4-fs: mballoc enabled\n");
         return 0;
 }
 
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 387ad98350c3..978b57f8630d 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -254,12 +254,12 @@ static inline unsigned dx_node_limit (struct inode *dir)
  * Debug
  */
 #ifdef DX_DEBUG
-static void dx_show_index (char * label, struct dx_entry *entries)
+static void dx_show_index(char * label, struct dx_entry *entries)
 {
         int i, n = dx_get_count (entries);
-        printk("%s index ", label);
+        printk(KERN_DEBUG "%s index ", label);
         for (i = 0; i < n; i++) {
-                printk("%x->%lu ", i? dx_get_hash(entries + i) :
+                printk("%x->%lu ", i ? dx_get_hash(entries + i) :
                                 0, (unsigned long)dx_get_block(entries + i));
         }
         printk("\n");
@@ -328,8 +328,9 @@ struct stats dx_show_entries(struct dx_hash_info *hinfo, struct inode *dir,
                 brelse (bh);
         }
         if (bcount)
-                printk("%snames %u, fullness %u (%u%%)\n", levels?"":"   ",
-                        names, space/bcount,(space/bcount)*100/blocksize);
+                printk(KERN_DEBUG "%snames %u, fullness %u (%u%%)\n", 
+                       levels ? "" : "   ", names, space/bcount,
+                       (space/bcount)*100/blocksize);
         return (struct stats) { names, space, bcount};
 }
 #endif /* DX_DEBUG */
@@ -635,8 +636,8 @@ int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash,
         int ret, err;
         __u32 hashval;
 
-        dxtrace(printk("In htree_fill_tree, start hash: %x:%x\n", start_hash,
-                       start_minor_hash));
+        dxtrace(printk(KERN_DEBUG "In htree_fill_tree, start hash: %x:%x\n", 
+                       start_hash, start_minor_hash));
         dir = dir_file->f_path.dentry->d_inode;
         if (!(EXT4_I(dir)->i_flags & EXT4_INDEX_FL)) {
                 hinfo.hash_version = EXT4_SB(dir->i_sb)->s_def_hash_version;
@@ -694,8 +695,8 @@ int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash,
                         break;
         }
         dx_release(frames);
-        dxtrace(printk("Fill tree: returned %d entries, next hash: %x\n",
-                       count, *next_hash));
+        dxtrace(printk(KERN_DEBUG "Fill tree: returned %d entries, "
+                       "next hash: %x\n", count, *next_hash));
         return count;
 errout:
         dx_release(frames);
@@ -882,7 +883,8 @@ static struct buffer_head * ext4_find_entry (struct dentry *dentry,
                  */
                 if (bh || (err != ERR_BAD_DX_DIR))
                         return bh;
-                dxtrace(printk("ext4_find_entry: dx failed, falling back\n"));
+                dxtrace(printk(KERN_DEBUG "ext4_find_entry: dx failed, "
+                               "falling back\n"));
         }
         nblocks = dir->i_size >> EXT4_BLOCK_SIZE_BITS(sb);
         start = EXT4_I(dir)->i_dir_start_lookup;
@@ -1025,7 +1027,7 @@ static struct buffer_head * ext4_dx_find_entry(struct dentry *dentry,
 
         *err = -ENOENT;
 errout:
-        dxtrace(printk("%s not found\n", name));
+        dxtrace(printk(KERN_DEBUG "%s not found\n", name));
         dx_release (frames);
         return NULL;
 }
@@ -1377,7 +1379,7 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
         struct fake_dirent *fde;
 
         blocksize =  dir->i_sb->s_blocksize;
-        dxtrace(printk("Creating index\n"));
+        dxtrace(printk(KERN_DEBUG "Creating index\n"));
         retval = ext4_journal_get_write_access(handle, bh);
         if (retval) {
                 ext4_std_error(dir->i_sb, retval);
@@ -1527,7 +1529,7 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
         }
 
         /* Block full, should compress but for now just split */
-        dxtrace(printk("using %u of %u node entries\n",
+        dxtrace(printk(KERN_DEBUG "using %u of %u node entries\n",
                        dx_get_count(entries), dx_get_limit(entries)));
         /* Need to split index? */
         if (dx_get_count(entries) == dx_get_limit(entries)) {
@@ -1559,7 +1561,8 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
                 if (levels) {
                         unsigned icount1 = icount/2, icount2 = icount - icount1;
                         unsigned hash2 = dx_get_hash(entries + icount1);
-                        dxtrace(printk("Split index %i/%i\n", icount1, icount2));
+                        dxtrace(printk(KERN_DEBUG "Split index %i/%i\n",
+                                       icount1, icount2));
 
                         BUFFER_TRACE(frame->bh, "get_write_access"); /* index root */
                         err = ext4_journal_get_write_access(handle,
@@ -1588,7 +1591,8 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
                                 goto journal_error;
                         brelse (bh2);
                 } else {
-                        dxtrace(printk("Creating second level index...\n"));
+                        dxtrace(printk(KERN_DEBUG
+                                       "Creating second level index...\n"));
                         memcpy((char *) entries2, (char *) entries,
                                icount * sizeof(struct dx_entry));
                         dx_set_limit(entries2, dx_node_limit(dir));
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 566344b926b7..ee8695464957 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -981,7 +981,7 @@ static ext4_fsblk_t get_sb_block(void **data)
         /*todo: use simple_strtoll with >32bit ext4 */
         sb_block = simple_strtoul(options, &options, 0);
         if (*options && *options != ',') {
-                printk("EXT4-fs: Invalid sb specification: %s\n",
+                printk(KERN_ERR "EXT4-fs: Invalid sb specification: %s\n",
                        (char *) *data);
                 return 1;
         }
@@ -1082,7 +1082,8 @@ static int parse_options(char *options, struct super_block *sb,
 #else
                 case Opt_user_xattr:
                 case Opt_nouser_xattr:
-                        printk("EXT4 (no)user_xattr options not supported\n");
+                        printk(KERN_ERR "EXT4 (no)user_xattr options "
+                               "not supported\n");
                         break;
 #endif
 #ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
@@ -1095,7 +1096,8 @@ static int parse_options(char *options, struct super_block *sb,
 #else
                 case Opt_acl:
                 case Opt_noacl:
-                        printk("EXT4 (no)acl options not supported\n");
+                        printk(KERN_ERR "EXT4 (no)acl options "
+                               "not supported\n");
                         break;
 #endif
                 case Opt_reservation:
@@ -1189,8 +1191,8 @@ set_qf_name:
                              sb_any_quota_suspended(sb)) &&
                             !sbi->s_qf_names[qtype]) {
                                 printk(KERN_ERR
-                                        "EXT4-fs: Cannot change journaled "
-                                        "quota options when quota turned on.\n");
+                                       "EXT4-fs: Cannot change journaled "
+                                       "quota options when quota turned on.\n");
                                 return 0;
                         }
                         qname = match_strdup(&args[0]);
@@ -1473,14 +1475,14 @@ static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
                         EXT4_INODES_PER_GROUP(sb),
                         sbi->s_mount_opt);
 
-        printk(KERN_INFO "EXT4 FS on %s, ", sb->s_id);
         if (EXT4_SB(sb)->s_journal->j_inode == NULL) {
                 char b[BDEVNAME_SIZE];
 
-                printk("external journal on %s\n",
-                        bdevname(EXT4_SB(sb)->s_journal->j_dev, b));
+                printk(KERN_INFO "EXT4 FS on %s, external journal on %s\n",
+                       sb->s_id, bdevname(EXT4_SB(sb)->s_journal->j_dev, b));
         } else {
-                printk("internal journal\n");
+                printk(KERN_INFO "EXT4 FS on %s, internal journal\n",
+                       sb->s_id);
         }
         return res;
 }
@@ -2715,6 +2717,11 @@ static int ext4_load_journal(struct super_block *sb,
                         return -EINVAL;
         }
 
+        if (journal->j_flags & JBD2_BARRIER)
+                printk(KERN_INFO "EXT4-fs: barriers enabled\n");
+        else
+                printk(KERN_INFO "EXT4-fs: barriers disabled\n");
+
         if (!really_read_only && test_opt(sb, UPDATE_JOURNAL)) {
                 err = jbd2_journal_update_format(journal);
                 if (err)  {