Btrfs: do extent allocation and reference count updates in the background

[safe/jmp/linux-2.6] / fs / reiserfs / namei.c

diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 23f5cd5..738967f 100644 (file)
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -16,7 +16,6 @@
 #include <linux/reiserfs_fs.h>
 #include <linux/reiserfs_acl.h>
 #include <linux/reiserfs_xattr.h>
-#include <linux/smp_lock.h>
 #include <linux/quotaops.h>
 
 #define INC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) { inc_nlink(i); if (i->i_nlink >= REISERFS_LINK_MAX) i->i_nlink=1; }
@@ -302,7 +301,7 @@ static int reiserfs_find_entry(struct inode *dir, const char *name, int namelen,
                                        path_to_entry, de);
                if (retval == IO_ERROR) {
                        reiserfs_warning(dir->i_sb, "zam-7001: io error in %s",
-                                        __FUNCTION__);
+                                        __func__);
                        return IO_ERROR;
                }
 
@@ -384,7 +383,6 @@ struct dentry *reiserfs_get_parent(struct dentry *child)
        struct inode *inode = NULL;
        struct reiserfs_dir_entry de;
        INITIALIZE_PATH(path_to_entry);
-       struct dentry *parent;
        struct inode *dir = child->d_inode;
 
        if (dir->i_nlink == 0) {
@@ -402,15 +400,7 @@ struct dentry *reiserfs_get_parent(struct dentry *child)
        inode = reiserfs_iget(dir->i_sb, (struct cpu_key *)&(de.de_dir_id));
        reiserfs_write_unlock(dir->i_sb);
 
-       if (!inode || IS_ERR(inode)) {
-               return ERR_PTR(-EACCES);
-       }
-       parent = d_alloc_anon(inode);
-       if (!parent) {
-               iput(inode);
-               parent = ERR_PTR(-ENOMEM);
-       }
-       return parent;
+       return d_obtain_alias(inode);
 }
 
 /* add entry to the directory (entry can be hidden). 
@@ -453,7 +443,7 @@ static int reiserfs_add_entry(struct reiserfs_transaction_handle *th,
        buflen = DEH_SIZE + ROUND_UP(namelen);
        if (buflen > sizeof(small_buf)) {
                buffer = kmalloc(buflen, GFP_NOFS);
-               if (buffer == 0)
+               if (!buffer)
                        return -ENOMEM;
        } else
                buffer = small_buf;
@@ -497,7 +487,7 @@ static int reiserfs_add_entry(struct reiserfs_transaction_handle *th,
                        reiserfs_warning(dir->i_sb,
                                         "zam-7002:%s: \"reiserfs_find_entry\" "
                                         "has returned unexpected value (%d)",
-                                        __FUNCTION__, retval);
+                                        __func__, retval);
                }
 
                return -EEXIST;
@@ -583,7 +573,7 @@ static int new_inode_init(struct inode *inode, struct inode *dir, int mode)
        /* the quota init calls have to know who to charge the quota to, so
         ** we have to set uid and gid here
         */
-       inode->i_uid = current->fsuid;
+       inode->i_uid = current_fsuid();
        inode->i_mode = mode;
        /* Make inode invalid - just in case we are going to drop it before
         * the initialization happens */
@@ -594,7 +584,7 @@ static int new_inode_init(struct inode *inode, struct inode *dir, int mode)
                if (S_ISDIR(mode))
                        inode->i_mode |= S_ISGID;
        } else {
-               inode->i_gid = current->fsgid;
+               inode->i_gid = current_fsgid();
        }
        DQUOT_INIT(inode);
        return 0;
@@ -656,6 +646,7 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
                err = journal_end(&th, dir->i_sb, jbegin_count);
                if (err)
                        retval = err;
+               unlock_new_inode(inode);
                iput(inode);
                goto out_failed;
        }
@@ -663,6 +654,7 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
        reiserfs_update_inode_transaction(dir);
 
        d_instantiate(dentry, inode);
+       unlock_new_inode(inode);
        retval = journal_end(&th, dir->i_sb, jbegin_count);
 
       out_failed:
@@ -737,11 +729,13 @@ static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
                err = journal_end(&th, dir->i_sb, jbegin_count);
                if (err)
                        retval = err;
+               unlock_new_inode(inode);
                iput(inode);
                goto out_failed;
        }
 
        d_instantiate(dentry, inode);
+       unlock_new_inode(inode);
        retval = journal_end(&th, dir->i_sb, jbegin_count);
 
       out_failed:
@@ -822,6 +816,7 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
                err = journal_end(&th, dir->i_sb, jbegin_count);
                if (err)
                        retval = err;
+               unlock_new_inode(inode);
                iput(inode);
                goto out_failed;
        }
@@ -829,6 +824,7 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
        reiserfs_update_sd(&th, dir);
 
        d_instantiate(dentry, inode);
+       unlock_new_inode(inode);
        retval = journal_end(&th, dir->i_sb, jbegin_count);
       out_failed:
        if (locked)
@@ -908,7 +904,7 @@ static int reiserfs_rmdir(struct inode *dir, struct dentry *dentry)
 
        if (inode->i_nlink != 2 && inode->i_nlink != 1)
                reiserfs_warning(inode->i_sb, "%s: empty directory has nlink "
-                                "!= 2 (%d)", __FUNCTION__, inode->i_nlink);
+                                "!= 2 (%d)", __func__, inode->i_nlink);
 
        clear_nlink(inode);
        inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
@@ -985,7 +981,7 @@ static int reiserfs_unlink(struct inode *dir, struct dentry *dentry)
 
        if (!inode->i_nlink) {
                reiserfs_warning(inode->i_sb, "%s: deleting nonexistent file "
-                                "(%s:%lu), %d", __FUNCTION__,
+                                "(%s:%lu), %d", __func__,
                                 reiserfs_bdevname(inode->i_sb), inode->i_ino,
                                 inode->i_nlink);
                inode->i_nlink = 1;
@@ -1106,11 +1102,13 @@ static int reiserfs_symlink(struct inode *parent_dir,
                err = journal_end(&th, parent_dir->i_sb, jbegin_count);
                if (err)
                        retval = err;
+               unlock_new_inode(inode);
                iput(inode);
                goto out_failed;
        }
 
        d_instantiate(dentry, inode);
+       unlock_new_inode(inode);
        retval = journal_end(&th, parent_dir->i_sb, jbegin_count);
       out_failed:
        reiserfs_write_unlock(parent_dir->i_sb);
@@ -1525,7 +1523,7 @@ static int reiserfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 /*
  * directories can handle most operations...
  */
-struct inode_operations reiserfs_dir_inode_operations = {
+const struct inode_operations reiserfs_dir_inode_operations = {
        //&reiserfs_dir_operations,   /* default_file_ops */
        .create = reiserfs_create,
        .lookup = reiserfs_lookup,
@@ -1548,7 +1546,7 @@ struct inode_operations reiserfs_dir_inode_operations = {
  * symlink operations.. same as page_symlink_inode_operations, with xattr
  * stuff added
  */
-struct inode_operations reiserfs_symlink_inode_operations = {
+const struct inode_operations reiserfs_symlink_inode_operations = {
        .readlink = generic_readlink,
        .follow_link = page_follow_link_light,
        .put_link = page_put_link,
@@ -1564,7 +1562,7 @@ struct inode_operations reiserfs_symlink_inode_operations = {
 /*
  * special file operations.. just xattr/acl stuff
  */
-struct inode_operations reiserfs_special_inode_operations = {
+const struct inode_operations reiserfs_special_inode_operations = {
        .setattr = reiserfs_setattr,
        .setxattr = reiserfs_setxattr,
        .getxattr = reiserfs_getxattr,