Merge with /home/shaggy/git/linus-clean/

1 files changed, 40 insertions, 47 deletions

diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 0ce1c455ae55..7843f792a4b7 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -22,29 +22,12 @@ static void hfsplus_destroy_inode(struct inode *inode);
 
 #include "hfsplus_fs.h"
 
-void hfsplus_inode_check(struct super_block *sb)
-{
-#if 0
-        u32 cnt = atomic_read(&HFSPLUS_SB(sb).inode_cnt);
-        u32 last_cnt = HFSPLUS_SB(sb).last_inode_cnt;
-
-        if (cnt <= (last_cnt / 2) ||
-            cnt >= (last_cnt * 2)) {
-                HFSPLUS_SB(sb).last_inode_cnt = cnt;
-                printk("inode_check: %u,%u,%u\n", cnt, last_cnt,
-                        HFSPLUS_SB(sb).cat_tree ? HFSPLUS_SB(sb).cat_tree->node_hash_cnt : 0);
-        }
-#endif
-}
-
 static void hfsplus_read_inode(struct inode *inode)
 {
         struct hfs_find_data fd;
         struct hfsplus_vh *vhdr;
         int err;
 
-        atomic_inc(&HFSPLUS_SB(inode->i_sb).inode_cnt);
-        hfsplus_inode_check(inode->i_sb);
         INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
         init_MUTEX(&HFSPLUS_I(inode).extents_lock);
         HFSPLUS_I(inode).flags = 0;
@@ -155,12 +138,10 @@ static int hfsplus_write_inode(struct inode *inode, int unused)
 static void hfsplus_clear_inode(struct inode *inode)
 {
         dprint(DBG_INODE, "hfsplus_clear_inode: %lu\n", inode->i_ino);
-        atomic_dec(&HFSPLUS_SB(inode->i_sb).inode_cnt);
         if (HFSPLUS_IS_RSRC(inode)) {
                 HFSPLUS_I(HFSPLUS_I(inode).rsrc_inode).rsrc_inode = NULL;
                 iput(HFSPLUS_I(inode).rsrc_inode);
         }
-        hfsplus_inode_check(inode->i_sb);
 }
 
 static void hfsplus_write_super(struct super_block *sb)
@@ -188,7 +169,7 @@ static void hfsplus_write_super(struct super_block *sb)
                         block = HFSPLUS_SB(sb).blockoffset;
                         block += (HFSPLUS_SB(sb).sect_count - 2) >> (sb->s_blocksize_bits - 9);
                         offset = ((HFSPLUS_SB(sb).sect_count - 2) << 9) & (sb->s_blocksize - 1);
-                        printk("backup: %u,%u,%u,%u\n", HFSPLUS_SB(sb).blockoffset,
+                        printk(KERN_DEBUG "hfs: backup: %u,%u,%u,%u\n", HFSPLUS_SB(sb).blockoffset,
                                 HFSPLUS_SB(sb).sect_count, block, offset);
                         bh = sb_bread(sb, block);
                         if (bh) {
@@ -198,7 +179,7 @@ static void hfsplus_write_super(struct super_block *sb)
                                         mark_buffer_dirty(bh);
                                         brelse(bh);
                                 } else
-                                        printk("backup not found!\n");
+                                        printk(KERN_WARNING "hfs: backup not found!\n");
                         }
                 }
                 HFSPLUS_SB(sb).flags &= ~HFSPLUS_SB_WRITEBACKUP;
@@ -251,14 +232,26 @@ static int hfsplus_remount(struct super_block *sb, int *flags, char *data)
                 return 0;
         if (!(*flags & MS_RDONLY)) {
                 struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr;
+                struct hfsplus_sb_info sbi;
+
+                memset(&sbi, 0, sizeof(struct hfsplus_sb_info));
+                sbi.nls = HFSPLUS_SB(sb).nls;
+                if (!hfsplus_parse_options(data, &sbi))
+                        return -EINVAL;
 
                 if (!(vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_UNMNT))) {
-                        printk("HFS+-fs warning: Filesystem was not cleanly unmounted, "
+                        printk(KERN_WARNING "hfs: filesystem was not cleanly unmounted, "
                                "running fsck.hfsplus is recommended.  leaving read-only.\n");
                         sb->s_flags |= MS_RDONLY;
                         *flags |= MS_RDONLY;
+                } else if (sbi.flags & HFSPLUS_SB_FORCE) {
+                        /* nothing */
                 } else if (vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_SOFTLOCK)) {
-                        printk("HFS+-fs: Filesystem is marked locked, leaving read-only.\n");
+                        printk(KERN_WARNING "hfs: filesystem is marked locked, leaving read-only.\n");
+                        sb->s_flags |= MS_RDONLY;
+                        *flags |= MS_RDONLY;
+                } else if (vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_JOURNALED)) {
+                        printk(KERN_WARNING "hfs: filesystem is marked journaled, leaving read-only.\n");
                         sb->s_flags |= MS_RDONLY;
                         *flags |= MS_RDONLY;
                 }
@@ -299,8 +292,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
         INIT_HLIST_HEAD(&sbi->rsrc_inodes);
         hfsplus_fill_defaults(sbi);
         if (!hfsplus_parse_options(data, sbi)) {
-                if (!silent)
-                        printk("HFS+-fs: unable to parse mount options\n");
+                printk(KERN_ERR "hfs: unable to parse mount options\n");
                 err = -EINVAL;
                 goto cleanup;
         }
@@ -308,8 +300,8 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
         /* temporarily use utf8 to correctly find the hidden dir below */
         nls = sbi->nls;
         sbi->nls = load_nls("utf8");
-        if (!nls) {
-                printk("HFS+: unable to load nls for utf8\n");
+        if (!sbi->nls) {
+                printk(KERN_ERR "hfs: unable to load nls for utf8\n");
                 err = -EINVAL;
                 goto cleanup;
         }
@@ -317,17 +309,17 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
         /* Grab the volume header */
         if (hfsplus_read_wrapper(sb)) {
                 if (!silent)
-                        printk("HFS+-fs: unable to find HFS+ superblock\n");
+                        printk(KERN_WARNING "hfs: unable to find HFS+ superblock\n");
                 err = -EINVAL;
                 goto cleanup;
         }
         vhdr = HFSPLUS_SB(sb).s_vhdr;
 
         /* Copy parts of the volume header into the superblock */
-        sb->s_magic = be16_to_cpu(vhdr->signature);
-        if (be16_to_cpu(vhdr->version) != HFSPLUS_CURRENT_VERSION) {
-                if (!silent)
-                        printk("HFS+-fs: wrong filesystem version\n");
+        sb->s_magic = HFSPLUS_VOLHEAD_SIG;
+        if (be16_to_cpu(vhdr->version) < HFSPLUS_MIN_VERSION ||
+            be16_to_cpu(vhdr->version) > HFSPLUS_CURRENT_VERSION) {
+                printk(KERN_ERR "hfs: wrong filesystem version\n");
                 goto cleanup;
         }
         HFSPLUS_SB(sb).total_blocks = be32_to_cpu(vhdr->total_blocks);
@@ -348,34 +340,36 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
         sb->s_maxbytes = MAX_LFS_FILESIZE;
 
         if (!(vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_UNMNT))) {
-                if (!silent)
-                        printk("HFS+-fs warning: Filesystem was not cleanly unmounted, "
-                               "running fsck.hfsplus is recommended.  mounting read-only.\n");
+                printk(KERN_WARNING "hfs: Filesystem was not cleanly unmounted, "
+                       "running fsck.hfsplus is recommended.  mounting read-only.\n");
                 sb->s_flags |= MS_RDONLY;
+        } else if (sbi->flags & HFSPLUS_SB_FORCE) {
+                /* nothing */
         } else if (vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_SOFTLOCK)) {
-                if (!silent)
-                        printk("HFS+-fs: Filesystem is marked locked, mounting read-only.\n");
+                printk(KERN_WARNING "hfs: Filesystem is marked locked, mounting read-only.\n");
+                sb->s_flags |= MS_RDONLY;
+        } else if (vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_JOURNALED)) {
+                printk(KERN_WARNING "hfs: write access to a jounaled filesystem is not supported, "
+                       "use the force option at your own risk, mounting read-only.\n");
                 sb->s_flags |= MS_RDONLY;
         }
+        sbi->flags &= ~HFSPLUS_SB_FORCE;
 
         /* Load metadata objects (B*Trees) */
         HFSPLUS_SB(sb).ext_tree = hfs_btree_open(sb, HFSPLUS_EXT_CNID);
         if (!HFSPLUS_SB(sb).ext_tree) {
-                if (!silent)
-                        printk("HFS+-fs: failed to load extents file\n");
+                printk(KERN_ERR "hfs: failed to load extents file\n");
                 goto cleanup;
         }
         HFSPLUS_SB(sb).cat_tree = hfs_btree_open(sb, HFSPLUS_CAT_CNID);
         if (!HFSPLUS_SB(sb).cat_tree) {
-                if (!silent)
-                        printk("HFS+-fs: failed to load catalog file\n");
+                printk(KERN_ERR "hfs: failed to load catalog file\n");
                 goto cleanup;
         }
 
         HFSPLUS_SB(sb).alloc_file = iget(sb, HFSPLUS_ALLOC_CNID);
         if (!HFSPLUS_SB(sb).alloc_file) {
-                if (!silent)
-                        printk("HFS+-fs: failed to load allocation file\n");
+                printk(KERN_ERR "hfs: failed to load allocation file\n");
                 goto cleanup;
         }
 
@@ -383,8 +377,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
         root = iget(sb, HFSPLUS_ROOT_CNID);
         sb->s_root = d_alloc_root(root);
         if (!sb->s_root) {
-                if (!silent)
-                        printk("HFS+-fs: failed to load root directory\n");
+                printk(KERN_ERR "hfs: failed to load root directory\n");
                 iput(root);
                 goto cleanup;
         }
@@ -418,7 +411,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
         sync_dirty_buffer(HFSPLUS_SB(sb).s_vhbh);
 
         if (!HFSPLUS_SB(sb).hidden_dir) {
-                printk("HFS+: create hidden dir...\n");
+                printk(KERN_DEBUG "hfs: create hidden dir...\n");
                 HFSPLUS_SB(sb).hidden_dir = hfsplus_new_inode(sb, S_IFDIR);
                 hfsplus_create_cat(HFSPLUS_SB(sb).hidden_dir->i_ino, sb->s_root->d_inode,
                                    &str, HFSPLUS_SB(sb).hidden_dir);
@@ -498,7 +491,7 @@ static void __exit exit_hfsplus_fs(void)
 {
         unregister_filesystem(&hfsplus_fs_type);
         if (kmem_cache_destroy(hfsplus_inode_cachep))
-                printk(KERN_INFO "hfsplus_inode_cache: not all structures were freed\n");
+                printk(KERN_ERR "hfsplus_inode_cache: not all structures were freed\n");
 }
 
 module_init(init_hfsplus_fs)