get rid of BKL in fs/efs

Only readdir() really needed it, and that's easily fixable by switch to
generic_file_llseek()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 3 insertions, 18 deletions

diff --git a/fs/efs/dir.c b/fs/efs/dir.c
index 49308a29798a..7ee6f7e3a608 100644
--- a/fs/efs/dir.c
+++ b/fs/efs/dir.c
@@ -5,12 +5,12 @@
  */
 
 #include <linux/buffer_head.h>
-#include <linux/smp_lock.h>
 #include "efs.h"
 
 static int efs_readdir(struct file *, void *, filldir_t);
 
 const struct file_operations efs_dir_operations = {
+        .llseek         = generic_file_llseek,
         .read           = generic_read_dir,
         .readdir        = efs_readdir,
 };
@@ -33,8 +33,6 @@ static int efs_readdir(struct file *filp, void *dirent, filldir_t filldir) {
         if (inode->i_size & (EFS_DIRBSIZE-1))
                 printk(KERN_WARNING "EFS: WARNING: readdir(): directory size not a multiple of EFS_DIRBSIZE\n");
 
-        lock_kernel();
-
         /* work out where this entry can be found */
         block = filp->f_pos >> EFS_DIRBSIZE_BITS;
 
@@ -107,7 +105,6 @@ static int efs_readdir(struct file *filp, void *dirent, filldir_t filldir) {
 
         filp->f_pos = (block << EFS_DIRBSIZE_BITS) | slot;
 out:
-        unlock_kernel();
         return 0;
 }
 
diff --git a/fs/efs/namei.c b/fs/efs/namei.c
index c3fb5f9c4a44..1511bf9e5f80 100644
--- a/fs/efs/namei.c
+++ b/fs/efs/namei.c
@@ -8,7 +8,6 @@
 
 #include <linux/buffer_head.h>
 #include <linux/string.h>
-#include <linux/smp_lock.h>
 #include <linux/exportfs.h>
 #include "efs.h"
 
@@ -63,16 +62,12 @@ struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, struct namei
         efs_ino_t inodenum;
         struct inode * inode = NULL;
 
-        lock_kernel();
         inodenum = efs_find_entry(dir, dentry->d_name.name, dentry->d_name.len);
         if (inodenum) {
                 inode = efs_iget(dir->i_sb, inodenum);
-                if (IS_ERR(inode)) {
-                        unlock_kernel();
+                if (IS_ERR(inode))
                         return ERR_CAST(inode);
-                }
         }
-        unlock_kernel();
 
         return d_splice_alias(inode, dentry);
 }
@@ -115,11 +110,9 @@ struct dentry *efs_get_parent(struct dentry *child)
         struct dentry *parent = ERR_PTR(-ENOENT);
         efs_ino_t ino;
 
-        lock_kernel();
         ino = efs_find_entry(child->d_inode, "..", 2);
         if (ino)
                 parent = d_obtain_alias(efs_iget(child->d_inode->i_sb, ino));
-        unlock_kernel();
 
         return parent;
 }
diff --git a/fs/efs/symlink.c b/fs/efs/symlink.c
index 41911ec83aaf..75117d0dac2b 100644
--- a/fs/efs/symlink.c
+++ b/fs/efs/symlink.c
@@ -9,7 +9,6 @@
 #include <linux/string.h>
 #include <linux/pagemap.h>
 #include <linux/buffer_head.h>
-#include <linux/smp_lock.h>
 #include "efs.h"
 
 static int efs_symlink_readpage(struct file *file, struct page *page)
@@ -22,9 +21,8 @@ static int efs_symlink_readpage(struct file *file, struct page *page)
   
         err = -ENAMETOOLONG;
         if (size > 2 * EFS_BLOCKSIZE)
-                goto fail_notlocked;
+                goto fail;
   
-        lock_kernel();
         /* read first 512 bytes of link target */
         err = -EIO;
         bh = sb_bread(inode->i_sb, efs_bmap(inode, 0));
@@ -40,14 +38,11 @@ static int efs_symlink_readpage(struct file *file, struct page *page)
                 brelse(bh);
         }
         link[size] = '\0';
-        unlock_kernel();
         SetPageUptodate(page);
         kunmap(page);
         unlock_page(page);
         return 0;
 fail:
-        unlock_kernel();
-fail_notlocked:
         SetPageError(page);
         kunmap(page);
         unlock_page(page);