5 files changed, 15 insertions, 27 deletions

diff --git a/fs/isofs/dir.c b/fs/isofs/dir.c
index e0aca9a0ac68..0542b6eedf80 100644
--- a/fs/isofs/dir.c
+++ b/fs/isofs/dir.c
@@ -10,7 +10,6 @@
  *
  *  isofs directory handling functions
  */
-#include <linux/smp_lock.h>
 #include <linux/gfp.h>
 #include "isofs.h"
 
@@ -255,18 +254,19 @@ static int isofs_readdir(struct file *filp,
         char *tmpname;
         struct iso_directory_record *tmpde;
         struct inode *inode = filp->f_path.dentry->d_inode;
+        struct isofs_sb_info *sbi = ISOFS_SB(inode->i_sb);
 
         tmpname = (char *)__get_free_page(GFP_KERNEL);
         if (tmpname == NULL)
                 return -ENOMEM;
 
-        lock_kernel();
+        mutex_lock(&sbi->s_mutex);
         tmpde = (struct iso_directory_record *) (tmpname+1024);
 
         result = do_isofs_readdir(inode, filp, dirent, filldir, tmpname, tmpde);
 
         free_page((unsigned long) tmpname);
-        unlock_kernel();
+        mutex_unlock(&sbi->s_mutex);
         return result;
 }
 
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 05baf7721e8c..09ff41a752a0 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -17,7 +17,6 @@
 #include <linux/slab.h>
 #include <linux/nls.h>
 #include <linux/ctype.h>
-#include <linux/smp_lock.h>
 #include <linux/statfs.h>
 #include <linux/cdrom.h>
 #include <linux/parser.h>
@@ -44,11 +43,7 @@ static void isofs_put_super(struct super_block *sb)
         struct isofs_sb_info *sbi = ISOFS_SB(sb);
 
 #ifdef CONFIG_JOLIET
-        lock_kernel();
-
         unload_nls(sbi->s_nls_iocharset);
-
-        unlock_kernel();
 #endif
 
         kfree(sbi);
@@ -571,15 +566,11 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
         int table, error = -EINVAL;
         unsigned int vol_desc_start;
 
-        lock_kernel();
-
         save_mount_options(s, data);
 
         sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
-        if (!sbi) {
-                unlock_kernel();
+        if (!sbi)
                 return -ENOMEM;
-        }
         s->s_fs_info = sbi;
 
         if (!parse_options((char *)data, &opt))
@@ -827,6 +818,7 @@ root_found:
         sbi->s_utf8 = opt.utf8;
         sbi->s_nocompress = opt.nocompress;
         sbi->s_overriderockperm = opt.overriderockperm;
+        mutex_init(&sbi->s_mutex);
         /*
          * It would be incredibly stupid to allow people to mark every file
          * on the disk as suid, so we merely allow them to set the default
@@ -904,7 +896,6 @@ root_found:
 
         kfree(opt.iocharset);
 
-        unlock_kernel();
         return 0;
 
         /*
@@ -944,7 +935,6 @@ out_freesbi:
         kfree(opt.iocharset);
         kfree(sbi);
         s->s_fs_info = NULL;
-        unlock_kernel();
         return error;
 }
 
@@ -983,8 +973,6 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock_s,
         int section, rv, error;
         struct iso_inode_info *ei = ISOFS_I(inode);
 
-        lock_kernel();
-
         error = -EIO;
         rv = 0;
         if (iblock < 0 || iblock != iblock_s) {
@@ -1060,7 +1048,6 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock_s,
 
         error = 0;
 abort:
-        unlock_kernel();
         return rv != 0 ? rv : error;
 }
 
diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
index 7d33de84f52a..2882dc089f87 100644
--- a/fs/isofs/isofs.h
+++ b/fs/isofs/isofs.h
@@ -55,6 +55,7 @@ struct isofs_sb_info {
         gid_t s_gid;
         uid_t s_uid;
         struct nls_table *s_nls_iocharset; /* Native language support table */
+        struct mutex s_mutex; /* replaces BKL, please remove if possible */
 };
 
 #define ISOFS_INVALID_MODE ((mode_t) -1)
diff --git a/fs/isofs/namei.c b/fs/isofs/namei.c
index ab438beb867c..0d23abfd4280 100644
--- a/fs/isofs/namei.c
+++ b/fs/isofs/namei.c
@@ -6,7 +6,6 @@
  *  (C) 1991  Linus Torvalds - minix filesystem
  */
 
-#include <linux/smp_lock.h>
 #include <linux/gfp.h>
 #include "isofs.h"
 
@@ -168,6 +167,7 @@ struct dentry *isofs_lookup(struct inode *dir, struct dentry *dentry, struct nam
         int found;
         unsigned long uninitialized_var(block);
         unsigned long uninitialized_var(offset);
+        struct isofs_sb_info *sbi = ISOFS_SB(dir->i_sb);
         struct inode *inode;
         struct page *page;
 
@@ -177,7 +177,7 @@ struct dentry *isofs_lookup(struct inode *dir, struct dentry *dentry, struct nam
         if (!page)
                 return ERR_PTR(-ENOMEM);
 
-        lock_kernel();
+        mutex_lock(&sbi->s_mutex);
         found = isofs_find_entry(dir, dentry,
                                 &block, &offset,
                                 page_address(page),
@@ -188,10 +188,10 @@ struct dentry *isofs_lookup(struct inode *dir, struct dentry *dentry, struct nam
         if (found) {
                 inode = isofs_iget(dir->i_sb, block, offset);
                 if (IS_ERR(inode)) {
-                        unlock_kernel();
+                        mutex_unlock(&sbi->s_mutex);
                         return ERR_CAST(inode);
                 }
         }
-        unlock_kernel();
+        mutex_unlock(&sbi->s_mutex);
         return d_splice_alias(inode, dentry);
 }
diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index 96a685c550fd..f9cd04db6eab 100644
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -8,7 +8,6 @@
 
 #include <linux/slab.h>
 #include <linux/pagemap.h>
-#include <linux/smp_lock.h>
 
 #include "isofs.h"
 #include "rock.h"
@@ -661,6 +660,7 @@ static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
 {
         struct inode *inode = page->mapping->host;
         struct iso_inode_info *ei = ISOFS_I(inode);
+        struct isofs_sb_info *sbi = ISOFS_SB(inode->i_sb);
         char *link = kmap(page);
         unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
         struct buffer_head *bh;
@@ -673,12 +673,12 @@ static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
         struct rock_state rs;
         int ret;
 
-        if (!ISOFS_SB(inode->i_sb)->s_rock)
+        if (!sbi->s_rock)
                 goto error;
 
         init_rock_state(&rs, inode);
         block = ei->i_iget5_block;
-        lock_kernel();
+        mutex_lock(&sbi->s_mutex);
         bh = sb_bread(inode->i_sb, block);
         if (!bh)
                 goto out_noread;
@@ -748,7 +748,7 @@ repeat:
                 goto fail;
         brelse(bh);
         *rpnt = '\0';
-        unlock_kernel();
+        mutex_unlock(&sbi->s_mutex);
         SetPageUptodate(page);
         kunmap(page);
         unlock_page(page);
@@ -765,7 +765,7 @@ out_bad_span:
         printk("symlink spans iso9660 blocks\n");
 fail:
         brelse(bh);
-        unlock_kernel();
+        mutex_unlock(&sbi->s_mutex);
 error:
         SetPageError(page);
         kunmap(page);