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Subject[PATCH 06/13] Introduce path_put()
From: Jan Blunck <jblunck@suse.de>

* Add path_put() functions for releasing a reference to the dentry and
vfsmount of a struct path in the right order

* Switch from path_release(nd) to path_put(&nd->path)

* Rename dput_path() to path_put_conditional()

Signed-off-by: Jan Blunck <jblunck@suse.de>
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
---
arch/alpha/kernel/osf_sys.c | 2
arch/mips/kernel/sysirix.c | 6 +-
arch/parisc/hpux/sys_hpux.c | 2
arch/powerpc/platforms/cell/spufs/syscalls.c | 2
arch/sparc64/solaris/fs.c | 4 -
drivers/md/dm-table.c | 2
drivers/mtd/mtdsuper.c | 4 -
fs/afs/mntpt.c | 2
fs/autofs4/root.c | 2
fs/block_dev.c | 2
fs/coda/pioctl.c | 4 -
fs/compat.c | 4 -
fs/configfs/symlink.c | 4 -
fs/dquot.c | 2
fs/ecryptfs/main.c | 2
fs/exec.c | 4 -
fs/ext3/super.c | 4 -
fs/ext4/super.c | 4 -
fs/gfs2/ops_fstype.c | 2
fs/inotify_user.c | 4 -
fs/namei.c | 56 ++++++++++++++-------------
fs/namespace.c | 20 ++++-----
fs/nfs/namespace.c | 2
fs/nfsctl.c | 2
fs/nfsd/export.c | 10 ++--
fs/nfsd/nfs4recover.c | 2
fs/nfsd/nfs4state.c | 2
fs/open.c | 22 +++++-----
fs/proc/base.c | 2
fs/reiserfs/super.c | 8 +--
fs/revoke.c | 2
fs/stat.c | 6 +-
fs/unionfs/main.c | 2
fs/unionfs/super.c | 12 ++---
fs/utimes.c | 2
fs/xattr.c | 16 +++----
fs/xfs/linux-2.6/xfs_ioctl.c | 2
include/linux/namei.h | 7 ---
include/linux/path.h | 2
kernel/audit_tree.c | 16 +++----
kernel/auditfilter.c | 4 -
net/sunrpc/rpc_pipe.c | 2
net/unix/af_unix.c | 6 +-
43 files changed, 134 insertions(+), 133 deletions(-)
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -261,7 +261,7 @@ osf_statfs(char __user *path, struct osf
retval = user_path_walk(path, &nd);
if (!retval) {
retval = do_osf_statfs(nd.path.dentry, buffer, bufsiz);
- path_release(&nd);
+ path_put(&nd.path);
}
return retval;
}
--- a/arch/mips/kernel/sysirix.c
+++ b/arch/mips/kernel/sysirix.c
@@ -711,7 +711,7 @@ asmlinkage int irix_statfs(const char __
}

dput_and_out:
- path_release(&nd);
+ path_put(&nd.path);
out:
return error;
}
@@ -1385,7 +1385,7 @@ asmlinkage int irix_statvfs(char __user
error |= __put_user(0, &buf->f_fstr[i]);

dput_and_out:
- path_release(&nd);
+ path_put(&nd.path);
out:
return error;
}
@@ -1636,7 +1636,7 @@ asmlinkage int irix_statvfs64(char __use
error |= __put_user(0, &buf->f_fstr[i]);

dput_and_out:
- path_release(&nd);
+ path_put(&nd.path);
out:
return error;
}
--- a/arch/parisc/hpux/sys_hpux.c
+++ b/arch/parisc/hpux/sys_hpux.c
@@ -222,7 +222,7 @@ asmlinkage long hpux_statfs(const char _
error = vfs_statfs_hpux(nd.path.dentry, &tmp);
if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
error = -EFAULT;
- path_release(&nd);
+ path_put(&nd.path);
}
return error;
}
--- a/arch/powerpc/platforms/cell/spufs/syscalls.c
+++ b/arch/powerpc/platforms/cell/spufs/syscalls.c
@@ -73,7 +73,7 @@ static long do_spu_create(const char __u
LOOKUP_OPEN|LOOKUP_CREATE, &nd);
if (!ret) {
ret = spufs_create(&nd, flags, mode, neighbor);
- path_release(&nd);
+ path_put(&nd.path);
}
putname(tmp);
}
--- a/arch/sparc64/solaris/fs.c
+++ b/arch/sparc64/solaris/fs.c
@@ -436,7 +436,7 @@ asmlinkage int solaris_statvfs(u32 path,
if (!error) {
struct inode *inode = nd.path.dentry->d_inode;
error = report_statvfs(nd.path.mnt, inode, buf);
- path_release(&nd);
+ path_put(&nd.path);
}
return error;
}
@@ -466,7 +466,7 @@ asmlinkage int solaris_statvfs64(u32 pat
if (!error) {
struct inode *inode = nd.path.dentry->d_inode;
error = report_statvfs64(nd.path.mnt, inode, buf);
- path_release(&nd);
+ path_put(&nd.path);
}
unlock_kernel();
return error;
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -369,7 +369,7 @@ static int lookup_device(const char *pat
*dev = inode->i_rdev;

out:
- path_release(&nd);
+ path_put(&nd.path);
return r;
}

--- a/drivers/mtd/mtdsuper.c
+++ b/drivers/mtd/mtdsuper.c
@@ -203,7 +203,7 @@ int get_sb_mtd(struct file_system_type *
goto not_an_MTD_device;

mtdnr = iminor(nd.path.dentry->d_inode);
- path_release(&nd);
+ path_put(&nd.path);

return get_sb_mtd_nr(fs_type, flags, dev_name, data, mtdnr, fill_super,
mnt);
@@ -214,7 +214,7 @@ not_an_MTD_device:
"MTD: Attempt to mount non-MTD device \"%s\"\n",
dev_name);
out:
- path_release(&nd);
+ path_put(&nd.path);
return ret;

}
--- a/fs/afs/mntpt.c
+++ b/fs/afs/mntpt.c
@@ -227,7 +227,7 @@ static void *afs_mntpt_follow_link(struc

newmnt = afs_mntpt_do_automount(nd->path.dentry);
if (IS_ERR(newmnt)) {
- path_release(nd);
+ path_put(&nd->path);
return (void *)newmnt;
}

--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -541,7 +541,7 @@ done:
return NULL;

out_error:
- path_release(nd);
+ path_put(&nd->path);
return ERR_PTR(status);
}

--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1415,7 +1415,7 @@ struct block_device *lookup_bdev(const c
if (!bdev)
goto fail;
out:
- path_release(&nd);
+ path_put(&nd.path);
return bdev;
fail:
bdev = ERR_PTR(error);
--- a/fs/coda/pioctl.c
+++ b/fs/coda/pioctl.c
@@ -80,7 +80,7 @@ static int coda_pioctl(struct inode * in

/* return if it is not a Coda inode */
if ( target_inode->i_sb != inode->i_sb ) {
- path_release(&nd);
+ path_put(&nd.path);
return -EINVAL;
}

@@ -89,7 +89,7 @@ static int coda_pioctl(struct inode * in

error = venus_pioctl(inode->i_sb, &(cnp->c_fid), cmd, &data);

- path_release(&nd);
+ path_put(&nd.path);
return error;
}

--- a/fs/compat.c
+++ b/fs/compat.c
@@ -244,7 +244,7 @@ asmlinkage long compat_sys_statfs(const
error = vfs_statfs(nd.path.dentry, &tmp);
if (!error)
error = put_compat_statfs(buf, &tmp);
- path_release(&nd);
+ path_put(&nd.path);
}
return error;
}
@@ -312,7 +312,7 @@ asmlinkage long compat_sys_statfs64(cons
error = vfs_statfs(nd.path.dentry, &tmp);
if (!error)
error = put_compat_statfs64(buf, &tmp);
- path_release(&nd);
+ path_put(&nd.path);
}
return error;
}
--- a/fs/configfs/symlink.c
+++ b/fs/configfs/symlink.c
@@ -103,7 +103,7 @@ static int get_target(const char *symnam
*target = configfs_get_config_item(nd->path.dentry);
if (!*target) {
ret = -ENOENT;
- path_release(nd);
+ path_put(&nd->path);
}
} else
ret = -EPERM;
@@ -141,7 +141,7 @@ int configfs_symlink(struct inode *dir,
ret = create_link(parent_item, target_item, dentry);

config_item_put(target_item);
- path_release(&nd);
+ path_put(&nd.path);

out_put:
config_item_put(parent_item);
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -1630,7 +1630,7 @@ int vfs_quota_on(struct super_block *sb,
error = vfs_quota_on_inode(nd.path.dentry->d_inode, type,
format_id);
out_path:
- path_release(&nd);
+ path_put(&nd.path);
return error;
}

--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -531,7 +531,7 @@ static int ecryptfs_read_super(struct su
rc = 0;
goto out;
out_free:
- path_release(&nd);
+ path_put(&nd.path);
out:
return rc;
}
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -148,7 +148,7 @@ out:
return error;
exit:
release_open_intent(&nd);
- path_release(&nd);
+ path_put(&nd.path);
goto out;
}

@@ -672,7 +672,7 @@ out:
}
}
release_open_intent(&nd);
- path_release(&nd);
+ path_put(&nd.path);
}
goto out;
}
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -2736,7 +2736,7 @@ static int ext3_quota_on(struct super_bl
return err;
/* Quotafile not on the same filesystem? */
if (nd.path.mnt->mnt_sb != sb) {
- path_release(&nd);
+ path_put(&nd.path);
return -EXDEV;
}
/* Quotafile not of fs root? */
@@ -2744,7 +2744,7 @@ static int ext3_quota_on(struct super_bl
printk(KERN_WARNING
"EXT3-fs: Quota file not on filesystem root. "
"Journalled quota will not work.\n");
- path_release(&nd);
+ path_put(&nd.path);
return vfs_quota_on(sb, type, format_id, path);
}

--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2939,7 +2939,7 @@ static int ext4_quota_on(struct super_bl
return err;
/* Quotafile not on the same filesystem? */
if (nd.path.mnt->mnt_sb != sb) {
- path_release(&nd);
+ path_put(&nd.path);
return -EXDEV;
}
/* Quotafile not of fs root? */
@@ -2947,7 +2947,7 @@ static int ext4_quota_on(struct super_bl
printk(KERN_WARNING
"EXT4-fs: Quota file not on filesystem root. "
"Journalled quota will not work.\n");
- path_release(&nd);
+ path_put(&nd.path);
return vfs_quota_on(sb, type, format_id, path);
}

--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -837,7 +837,7 @@ static struct super_block* get_gfs2_sb(c
"mount point %s\n", dev_name);

free_nd:
- path_release(&nd);
+ path_put(&nd.path);
out:
return sb;
}
--- a/fs/inotify_user.c
+++ b/fs/inotify_user.c
@@ -352,7 +352,7 @@ static int find_inode(const char __user
/* you can only watch an inode if you have read permissions on it */
error = vfs_permission(nd, MAY_READ);
if (error)
- path_release(nd);
+ path_put(&nd->path);
return error;
}

@@ -649,7 +649,7 @@ asmlinkage long sys_inotify_add_watch(in
ret = create_watch(dev, inode, mask);
mutex_unlock(&dev->up_mutex);

- path_release(&nd);
+ path_put(&nd.path);
fput_and_out:
fput_light(filp, fput_needed);
return ret;
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -362,11 +362,18 @@ int deny_write_access(struct file * file
return 0;
}

-void path_release(struct nameidata *nd)
+/**
+ * path_put - put a reference to a path
+ * @path: path to put the reference to
+ *
+ * Given a path decrement the reference count to the dentry and the vfsmount.
+ */
+void path_put(struct path *path)
{
- dput(nd->path.dentry);
- mntput(nd->path.mnt);
+ dput(path->dentry);
+ mntput(path->mnt);
}
+EXPORT_SYMBOL(path_put);

/**
* release_open_intent - free up open intent resources
@@ -552,7 +559,7 @@ static __always_inline int __vfs_follow_
goto fail;

if (*link == '/') {
- path_release(nd);
+ path_put(&nd->path);
if (!walk_init_root(link, nd))
/* weird __emul_prefix() stuff did it */
goto out;
@@ -568,18 +575,18 @@ out:
*/
name = __getname();
if (unlikely(!name)) {
- path_release(nd);
+ path_put(&nd->path);
return -ENOMEM;
}
strcpy(name, nd->last.name);
nd->last.name = name;
return 0;
fail:
- path_release(nd);
+ path_put(&nd->path);
return PTR_ERR(link);
}

-static inline void dput_path(struct path *path, struct nameidata *nd)
+static void path_put_conditional(struct path *path, struct nameidata *nd)
{
dput(path->dentry);
if (path->mnt != nd->path.mnt)
@@ -652,8 +659,8 @@ static inline int do_follow_link(struct
nd->depth--;
return err;
loop:
- dput_path(path, nd);
- path_release(nd);
+ path_put_conditional(path, nd);
+ path_put(&nd->path);
return err;
}

@@ -994,10 +1001,10 @@ return_reval:
return_base:
return 0;
out_dput:
- dput_path(&next, nd);
+ path_put_conditional(&next, nd);
break;
}
- path_release(nd);
+ path_put(&nd->path);
return_err:
return err;
}
@@ -1071,7 +1078,7 @@ static int __emul_lookup_dentry(const ch
mntput(old_mnt);
return 1;
}
- path_release(nd);
+ path_put(&nd->path);
}
nd->path.dentry = old_dentry;
nd->path.mnt = old_mnt;
@@ -1231,7 +1238,7 @@ static int __path_lookup_intent_open(int
if (IS_ERR(nd->intent.open.file)) {
if (err == 0) {
err = PTR_ERR(nd->intent.open.file);
- path_release(nd);
+ path_put(&nd->path);
}
} else if (err != 0)
release_open_intent(nd);
@@ -1819,11 +1826,11 @@ ok:
exit_mutex_unlock:
mutex_unlock(&dir->d_inode->i_mutex);
exit_dput:
- dput_path(&path, nd);
+ path_put_conditional(&path, nd);
exit:
if (!IS_ERR(nd->intent.open.file))
release_open_intent(nd);
- path_release(nd);
+ path_put(&nd->path);
return error;

do_link:
@@ -2004,7 +2011,7 @@ out_dput:
dput(dentry);
out_unlock:
mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
- path_release(&nd);
+ path_put(&nd.path);
out:
putname(tmp);

@@ -2069,7 +2076,7 @@ out_dput:
dput(dentry);
out_unlock:
mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
- path_release(&nd);
+ path_put(&nd.path);
out:
putname(tmp);
out_err:
@@ -2182,7 +2189,7 @@ exit3:
exit2:
mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
exit1:
- path_release(&nd);
+ path_put(&nd.path);
exit:
putname(name);
return error;
@@ -2269,7 +2276,7 @@ static long do_unlinkat(int dfd, const c
if (inode)
iput(inode); /* truncate the inode here */
exit1:
- path_release(&nd);
+ path_put(&nd.path);
exit:
putname(name);
return error;
@@ -2351,7 +2358,7 @@ out_dput:
dput(dentry);
out_unlock:
mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
- path_release(&nd);
+ path_put(&nd.path);
out:
putname(to);
out_putname:
@@ -2452,9 +2459,9 @@ out_dput:
out_unlock:
mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
out_release:
- path_release(&nd);
+ path_put(&nd.path);
out:
- path_release(&old_nd);
+ path_put(&old_nd.path);
exit:
putname(to);

@@ -2686,9 +2693,9 @@ exit4:
exit3:
unlock_rename(new_dir, old_dir);
exit2:
- path_release(&newnd);
+ path_put(&newnd.path);
exit1:
- path_release(&oldnd);
+ path_put(&oldnd.path);
exit:
return error;
}
@@ -2862,7 +2869,6 @@ EXPORT_SYMBOL(page_symlink);
EXPORT_SYMBOL(page_symlink_inode_operations);
EXPORT_SYMBOL(path_lookup);
EXPORT_SYMBOL(vfs_path_lookup);
-EXPORT_SYMBOL(path_release);
EXPORT_SYMBOL(permission);
EXPORT_SYMBOL(vfs_permission);
EXPORT_SYMBOL(file_permission);
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1323,7 +1323,7 @@ static int do_loopback(struct nameidata

out:
up_write(&namespace_sem);
- path_release(&old_nd);
+ path_put(&old_nd.path);
return err;
}

@@ -1462,8 +1462,8 @@ out1:
out:
up_write(&namespace_sem);
if (!err)
- path_release(&parent_nd);
- path_release(&old_nd);
+ path_put(&parent_nd.path);
+ path_put(&old_nd.path);
return err;
}

@@ -1902,7 +1902,7 @@ long do_mount(char *dev_name, char *dir_
retval = do_new_mount(&nd, type_page, flags, mnt_flags,
dev_name, data_page);
dput_out:
- path_release(&nd);
+ path_put(&nd.path);
return retval;
}

@@ -2158,7 +2158,7 @@ asmlinkage long sys_pivot_root(const cha

error = security_sb_pivotroot(&old_nd, &new_nd);
if (error) {
- path_release(&old_nd);
+ path_put(&old_nd.path);
goto out1;
}

@@ -2221,15 +2221,15 @@ asmlinkage long sys_pivot_root(const cha
chroot_fs_refs(&user_nd, &new_nd);
security_sb_post_pivotroot(&user_nd, &new_nd);
error = 0;
- path_release(&root_parent);
- path_release(&parent_nd);
+ path_put(&root_parent.path);
+ path_put(&parent_nd.path);
out2:
mutex_unlock(&old_nd.path.dentry->d_inode->i_mutex);
up_write(&namespace_sem);
- path_release(&user_nd);
- path_release(&old_nd);
+ path_put(&user_nd.path);
+ path_put(&old_nd.path);
out1:
- path_release(&new_nd);
+ path_put(&new_nd.path);
out0:
unlock_kernel();
return error;
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -148,7 +148,7 @@ out:
dprintk("<-- nfs_follow_mountpoint() = %d\n", err);
return ERR_PTR(err);
out_err:
- path_release(nd);
+ path_put(&nd->path);
goto out;
out_follow:
while (d_mountpoint(nd->path.dentry) &&
--- a/fs/nfsctl.c
+++ b/fs/nfsctl.c
@@ -43,7 +43,7 @@ static struct file *do_open(char *name,
if (!error)
return dentry_open(nd.path.dentry, nd.path.mnt, flags);

- path_release(&nd);
+ path_put(&nd.path);
return ERR_PTR(error);
}

--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -177,7 +177,7 @@ static int expkey_parse(struct cache_det
cache_put(&ek->h, &svc_expkey_cache);
else
err = -ENOMEM;
- path_release(&nd);
+ path_put(&nd.path);
}
cache_flush();
out:
@@ -630,7 +630,7 @@ static int svc_export_parse(struct cache
kfree(exp.ex_uuid);
kfree(exp.ex_path);
if (nd.path.dentry)
- path_release(&nd);
+ path_put(&nd.path);
out_no_path:
if (dom)
auth_domain_put(dom);
@@ -1098,7 +1098,7 @@ finish:
cache_put(&fsid_key->h, &svc_expkey_cache);
if (clp)
auth_domain_put(clp);
- path_release(&nd);
+ path_put(&nd.path);
out_unlock:
exp_writeunlock();
out:
@@ -1150,7 +1150,7 @@ exp_unexport(struct nfsctl_export *nxp)

err = -EINVAL;
exp = exp_get_by_name(dom, nd.path.mnt, nd.path.dentry, NULL);
- path_release(&nd);
+ path_put(&nd.path);
if (IS_ERR(exp))
goto out_domain;

@@ -1209,7 +1209,7 @@ exp_rootfh(svc_client *clp, char *path,
fh_put(&fh);
exp_put(exp);
out:
- path_release(&nd);
+ path_put(&nd.path);
return err;
}

--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -421,5 +421,5 @@ nfsd4_shutdown_recdir(void)
if (!rec_dir_init)
return;
rec_dir_init = 0;
- path_release(&rec_dir);
+ path_put(&rec_dir.path);
}
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3330,7 +3330,7 @@ nfs4_reset_recoverydir(char *recdir)
nfs4_set_recdir(recdir);
status = 0;
}
- path_release(&nd);
+ path_put(&nd.path);
return status;
}

--- a/fs/open.c
+++ b/fs/open.c
@@ -130,7 +130,7 @@ asmlinkage long sys_statfs(const char __
error = vfs_statfs_native(nd.path.dentry, &tmp);
if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
error = -EFAULT;
- path_release(&nd);
+ path_put(&nd.path);
}
return error;
}
@@ -149,7 +149,7 @@ asmlinkage long sys_statfs64(const char
error = vfs_statfs64(nd.path.dentry, &tmp);
if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
error = -EFAULT;
- path_release(&nd);
+ path_put(&nd.path);
}
return error;
}
@@ -279,7 +279,7 @@ put_write_and_out:
mnt_drop_write_and_out:
mnt_drop_write(nd.path.mnt);
dput_and_out:
- path_release(&nd);
+ path_put(&nd.path);
out:
return error;
}
@@ -473,7 +473,7 @@ asmlinkage long sys_faccessat(int dfd, c
res = -EROFS;

out_path_release:
- path_release(&nd);
+ path_put(&nd.path);
out:
current->fsuid = old_fsuid;
current->fsgid = old_fsgid;
@@ -504,7 +504,7 @@ asmlinkage long sys_chdir(const char __u
set_fs_pwd(current->fs, nd.path.mnt, nd.path.dentry);

dput_and_out:
- path_release(&nd);
+ path_put(&nd.path);
out:
return error;
}
@@ -560,7 +560,7 @@ asmlinkage long sys_chroot(const char __
set_fs_altroot();
error = 0;
dput_and_out:
- path_release(&nd);
+ path_put(&nd.path);
out:
return error;
}
@@ -636,7 +636,7 @@ asmlinkage long sys_fchmodat(int dfd, co
out_drop_write:
mnt_drop_write(nd.path.mnt);
dput_and_out:
- path_release(&nd);
+ path_put(&nd.path);
out:
return error;
}
@@ -693,7 +693,7 @@ asmlinkage long sys_chown(const char __u
error = chown_common(nd.path.dentry, user, group);
mnt_drop_write(nd.path.mnt);
out_release:
- path_release(&nd);
+ path_put(&nd.path);
out:
return error;
}
@@ -718,7 +718,7 @@ asmlinkage long sys_fchownat(int dfd, co
error = chown_common(nd.path.dentry, user, group);
mnt_drop_write(nd.path.mnt);
out_release:
- path_release(&nd);
+ path_put(&nd.path);
out:
return error;
}
@@ -737,7 +737,7 @@ asmlinkage long sys_lchown(const char __
error = chown_common(nd.path.dentry, user, group);
mnt_drop_write(nd.path.mnt);
out_release:
- path_release(&nd);
+ path_put(&nd.path);
out:
return error;
}
@@ -926,7 +926,7 @@ struct file *nameidata_to_filp(struct na
filp = __dentry_open(nd->path.dentry, nd->path.mnt, flags, filp,
NULL);
else
- path_release(nd);
+ path_put(&nd->path);
return filp;
}

--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1033,7 +1033,7 @@ static void *proc_pid_follow_link(struct
int error = -EACCES;

/* We don't need a base pointer in the /proc filesystem */
- path_release(nd);
+ path_put(&nd->path);

/* Are we allowed to snoop on the tasks file descriptors? */
if (!proc_fd_access_allowed(inode))
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1998,20 +1998,20 @@ static int reiserfs_quota_on(struct supe
return err;
/* Quotafile not on the same filesystem? */
if (nd.path.mnt->mnt_sb != sb) {
- path_release(&nd);
+ path_put(&nd.path);
return -EXDEV;
}
/* We must not pack tails for quota files on reiserfs for quota IO to work */
if (!REISERFS_I(nd.path.dentry->d_inode)->i_flags & i_nopack_mask) {
reiserfs_warning(sb,
"reiserfs: Quota file must have tail packing disabled.");
- path_release(&nd);
+ path_put(&nd.path);
return -EINVAL;
}
/* Not journalling quota? No more tests needed... */
if (!REISERFS_SB(sb)->s_qf_names[USRQUOTA] &&
!REISERFS_SB(sb)->s_qf_names[GRPQUOTA]) {
- path_release(&nd);
+ path_put(&nd.path);
return vfs_quota_on(sb, type, format_id, path);
}
/* Quotafile not of fs root? */
@@ -2019,7 +2019,7 @@ static int reiserfs_quota_on(struct supe
reiserfs_warning(sb,
"reiserfs: Quota file not on filesystem root. "
"Journalled quota will not work.");
- path_release(&nd);
+ path_put(&nd.path);
return vfs_quota_on(sb, type, format_id, path);
}

--- a/fs/revoke.c
+++ b/fs/revoke.c
@@ -650,7 +650,7 @@ asmlinkage long sys_revokeat(int dfd, co
err = __user_walk_fd(dfd, filename, 0, &nd);
if (!err) {
err = do_revoke(nd.path.dentry->d_inode, NULL);
- path_release(&nd);
+ path_put(&nd.path);
}
return err;
}
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -63,7 +63,7 @@ int vfs_stat_fd(int dfd, char __user *na
error = __user_walk_fd(dfd, name, LOOKUP_FOLLOW, &nd);
if (!error) {
error = vfs_getattr(nd.path.mnt, nd.path.dentry, stat);
- path_release(&nd);
+ path_put(&nd.path);
}
return error;
}
@@ -83,7 +83,7 @@ int vfs_lstat_fd(int dfd, char __user *n
error = __user_walk_fd(dfd, name, 0, &nd);
if (!error) {
error = vfs_getattr(nd.path.mnt, nd.path.dentry, stat);
- path_release(&nd);
+ path_put(&nd.path);
}
return error;
}
@@ -313,7 +313,7 @@ asmlinkage long sys_readlinkat(int dfd,
buf, bufsiz);
}
}
- path_release(&nd);
+ path_put(&nd.path);
}
return error;
}
--- a/fs/unionfs/main.c
+++ b/fs/unionfs/main.c
@@ -368,7 +368,7 @@ static int parse_dirs_option(struct supe
if (err) {
printk(KERN_ERR "unionfs: lower directory "
"'%s' is not a valid branch\n", name);
- path_release(&nd);
+ path_put(&nd.path);
goto out;
}

--- a/fs/unionfs/super.c
+++ b/fs/unionfs/super.c
@@ -205,7 +205,7 @@ static noinline int do_remount_mode_opti
if (nd.path.mnt == new_lower_paths[idx].mnt &&
nd.path.dentry == new_lower_paths[idx].dentry)
break;
- path_release(&nd); /* no longer needed */
+ path_put(&nd.path); /* no longer needed */
if (idx == cur_branches) {
err = -ENOENT; /* err may have been reset above */
printk(KERN_ERR "unionfs: branch \"%s\" "
@@ -248,7 +248,7 @@ static noinline int do_remount_del_optio
if (nd.path.mnt == new_lower_paths[idx].mnt &&
nd.path.dentry == new_lower_paths[idx].dentry)
break;
- path_release(&nd); /* no longer needed */
+ path_put(&nd.path); /* no longer needed */
if (idx == cur_branches) {
printk(KERN_ERR "unionfs: branch \"%s\" "
"not found\n", optarg);
@@ -267,7 +267,7 @@ static noinline int do_remount_del_optio
* new_data and new_lower_paths one to the left. Finally, adjust
* cur_branches.
*/
- pathput(&new_lower_paths[idx]);
+ path_put(&new_lower_paths[idx]);

if (idx < cur_branches - 1) {
/* if idx==cur_branches-1, we delete last branch: easy */
@@ -332,7 +332,7 @@ static noinline int do_remount_add_optio
if (nd.path.mnt == new_lower_paths[idx].mnt &&
nd.path.dentry == new_lower_paths[idx].dentry)
break;
- path_release(&nd); /* no longer needed */
+ path_put(&nd.path); /* no longer needed */
if (idx == cur_branches) {
printk(KERN_ERR "unionfs: branch \"%s\" "
"not found\n", optarg);
@@ -375,7 +375,7 @@ found_insertion_point:
if (err) {
printk(KERN_ERR "unionfs: lower directory "
"\"%s\" is not a valid branch\n", optarg);
- path_release(&nd);
+ path_put(&nd.path);
goto out;
}

@@ -789,7 +789,7 @@ out_release:
/* no need to cleanup/release anything in tmp_data */
if (tmp_lower_paths)
for (i = 0; i < new_branches; i++)
- pathput(&tmp_lower_paths[i]);
+ path_put(&tmp_lower_paths[i]);
out_free:
kfree(tmp_lower_paths);
kfree(tmp_data);
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -143,7 +143,7 @@ dput_and_out:
if (f)
fput(f);
else
- path_release(&nd);
+ path_put(&nd.path);
out:
return error;
}
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -239,7 +239,7 @@ sys_setxattr(char __user *path, char __u
return error;
error = setxattr(nd.path.dentry, name, value, size, flags);
mnt_drop_write(nd.path.mnt);
- path_release(&nd);
+ path_put(&nd.path);
return error;
}

@@ -258,7 +258,7 @@ sys_lsetxattr(char __user *path, char __
return error;
error = setxattr(nd.path.dentry, name, value, size, flags);
mnt_drop_write(nd.path.mnt);
- path_release(&nd);
+ path_put(&nd.path);
return error;
}

@@ -333,7 +333,7 @@ sys_getxattr(char __user *path, char __u
if (error)
return error;
error = getxattr(nd.path.dentry, name, value, size);
- path_release(&nd);
+ path_put(&nd.path);
return error;
}

@@ -348,7 +348,7 @@ sys_lgetxattr(char __user *path, char __
if (error)
return error;
error = getxattr(nd.path.dentry, name, value, size);
- path_release(&nd);
+ path_put(&nd.path);
return error;
}

@@ -407,7 +407,7 @@ sys_listxattr(char __user *path, char __
if (error)
return error;
error = listxattr(nd.path.dentry, list, size);
- path_release(&nd);
+ path_put(&nd.path);
return error;
}

@@ -421,7 +421,7 @@ sys_llistxattr(char __user *path, char _
if (error)
return error;
error = listxattr(nd.path.dentry, list, size);
- path_release(&nd);
+ path_put(&nd.path);
return error;
}

@@ -468,7 +468,7 @@ sys_removexattr(char __user *path, char
if (error)
return error;
error = removexattr(nd.path.dentry, name);
- path_release(&nd);
+ path_put(&nd.path);
return error;
}

@@ -482,7 +482,7 @@ sys_lremovexattr(char __user *path, char
if (error)
return error;
error = removexattr(nd.path.dentry, name);
- path_release(&nd);
+ path_put(&nd.path);
return error;
}

--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -95,7 +95,7 @@ xfs_find_handle(
ASSERT(nd.path.dentry);
ASSERT(nd.path.dentry->d_inode);
inode = igrab(nd.path.dentry->d_inode);
- path_release(&nd);
+ path_put(&nd.path);
break;
}

--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -67,7 +67,6 @@ extern int FASTCALL(__user_walk_fd(int d
extern int FASTCALL(path_lookup(const char *, unsigned, struct nameidata *));
extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
const char *, unsigned int, struct nameidata *);
-extern void path_release(struct nameidata *);

extern int __user_path_lookup_open(const char __user *, unsigned lookup_flags, struct nameidata *nd, int open_flags);
extern int path_lookup_open(int dfd, const char *name, unsigned lookup_flags, struct nameidata *, int open_flags);
@@ -101,10 +100,4 @@ static inline void pathget(struct path *
dget(path->dentry);
}

-static inline void pathput(struct path *path)
-{
- dput(path->dentry);
- mntput(path->mnt);
-}
-
#endif /* _LINUX_NAMEI_H */
--- a/include/linux/path.h
+++ b/include/linux/path.h
@@ -9,4 +9,6 @@ struct path {
struct dentry *dentry;
};

+extern void path_put(struct path *);
+
#endif /* _LINUX_PATH_H */
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -550,7 +550,7 @@ void audit_trim_trees(void)
goto skip_it;

root_mnt = collect_mounts(nd.path.mnt, nd.path.dentry);
- path_release(&nd);
+ path_put(&nd.path);
if (!root_mnt)
goto skip_it;

@@ -642,7 +642,7 @@ int audit_add_tree_rule(struct audit_kru
if (err)
goto Err;
mnt = collect_mounts(nd.path.mnt, nd.path.dentry);
- path_release(&nd);
+ path_put(&nd.path);
if (!mnt) {
err = -ENOMEM;
goto Err;
@@ -702,7 +702,7 @@ int audit_tag_tree(char *old, char *new)
if (err)
return err;
tagged = collect_mounts(nd.path.mnt, nd.path.dentry);
- path_release(&nd);
+ path_put(&nd.path);
if (!tagged)
return -ENOMEM;

@@ -711,9 +711,9 @@ int audit_tag_tree(char *old, char *new)
drop_collected_mounts(tagged);
return err;
}
- mnt = mntget(nd.mnt);
- dentry = dget(nd.dentry);
- path_release(&nd);
+ mnt = mntget(nd.path.mnt);
+ dentry = dget(nd.path.dentry);
+ path_put(&nd.path);

if (dentry == tagged->mnt_root && dentry == mnt->mnt_root)
follow_up(&mnt, &dentry);
@@ -744,13 +744,13 @@ int audit_tag_tree(char *old, char *new)
spin_lock(&vfsmount_lock);
if (!is_under(mnt, dentry, &nd)) {
spin_unlock(&vfsmount_lock);
- path_release(&nd);
+ path_put(&nd.path);
put_tree(tree);
mutex_lock(&audit_filter_mutex);
continue;
}
spin_unlock(&vfsmount_lock);
- path_release(&nd);
+ path_put(&nd.path);

list_for_each_entry(p, &list, mnt_list) {
failed = tag_chunk(p->mnt_root->d_inode, tree);
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -1152,11 +1152,11 @@ static int audit_get_nd(char *path, stru
static void audit_put_nd(struct nameidata *ndp, struct nameidata *ndw)
{
if (ndp) {
- path_release(ndp);
+ path_put(&ndp->path);
kfree(ndp);
}
if (ndw) {
- path_release(ndw);
+ path_put(&ndw->path);
kfree(ndw);
}
}
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -484,7 +484,7 @@ rpc_lookup_parent(char *path, struct nam
static void
rpc_release_path(struct nameidata *nd)
{
- path_release(nd);
+ path_put(&nd->path);
rpc_put_mount();
}

--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -752,7 +752,7 @@ static struct sock *unix_find_other(stru
if (u->sk_type == type)
touch_atime(nd.path.mnt, nd.path.dentry);

- path_release(&nd);
+ path_put(&nd.path);
mnt_drop_write(nd.path.mnt);

err=-EPROTOTYPE;
@@ -776,7 +776,7 @@ static struct sock *unix_find_other(stru
mnt_drop_write_fail:
mnt_drop_write(nd.path.mnt);
put_path_fail:
- path_release(&nd);
+ path_put(&nd.path);
fail:
*error=err;
return NULL;
@@ -893,7 +893,7 @@ out_mknod_dput:
dput(dentry);
out_mknod_unlock:
mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
- path_release(&nd);
+ path_put(&nd.path);
out_mknod_parent:
if (err==-EEXIST)
err=-EADDRINUSE;
-
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