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Diffstat (limited to 'fs/dquot.c')
-rw-r--r--fs/dquot.c33
1 files changed, 20 insertions, 13 deletions
diff --git a/fs/dquot.c b/fs/dquot.c
index 1346eebe74ce..8ec4d6cc7633 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -1793,6 +1793,21 @@ static int vfs_quota_on_remount(struct super_block *sb, int type)
1793 return ret; 1793 return ret;
1794} 1794}
1795 1795
1796int vfs_quota_on_path(struct super_block *sb, int type, int format_id,
1797 struct path *path)
1798{
1799 int error = security_quota_on(path->dentry);
1800 if (error)
1801 return error;
1802 /* Quota file not on the same filesystem? */
1803 if (path->mnt->mnt_sb != sb)
1804 error = -EXDEV;
1805 else
1806 error = vfs_quota_on_inode(path->dentry->d_inode, type,
1807 format_id);
1808 return error;
1809}
1810
1796/* Actual function called from quotactl() */ 1811/* Actual function called from quotactl() */
1797int vfs_quota_on(struct super_block *sb, int type, int format_id, char *path, 1812int vfs_quota_on(struct super_block *sb, int type, int format_id, char *path,
1798 int remount) 1813 int remount)
@@ -1804,19 +1819,10 @@ int vfs_quota_on(struct super_block *sb, int type, int format_id, char *path,
1804 return vfs_quota_on_remount(sb, type); 1819 return vfs_quota_on_remount(sb, type);
1805 1820
1806 error = path_lookup(path, LOOKUP_FOLLOW, &nd); 1821 error = path_lookup(path, LOOKUP_FOLLOW, &nd);
1807 if (error < 0) 1822 if (!error) {
1808 return error; 1823 error = vfs_quota_on_path(sb, type, format_id, &nd.path);
1809 error = security_quota_on(nd.path.dentry); 1824 path_put(&nd.path);
1810 if (error) 1825 }
1811 goto out_path;
1812 /* Quota file not on the same filesystem? */
1813 if (nd.path.mnt->mnt_sb != sb)
1814 error = -EXDEV;
1815 else
1816 error = vfs_quota_on_inode(nd.path.dentry->d_inode, type,
1817 format_id);
1818out_path:
1819 path_put(&nd.path);
1820 return error; 1826 return error;
1821} 1827}
1822 1828
@@ -2185,6 +2191,7 @@ EXPORT_SYMBOL(unregister_quota_format);
2185EXPORT_SYMBOL(dqstats); 2191EXPORT_SYMBOL(dqstats);
2186EXPORT_SYMBOL(dq_data_lock); 2192EXPORT_SYMBOL(dq_data_lock);
2187EXPORT_SYMBOL(vfs_quota_on); 2193EXPORT_SYMBOL(vfs_quota_on);
2194EXPORT_SYMBOL(vfs_quota_on_path);
2188EXPORT_SYMBOL(vfs_quota_on_mount); 2195EXPORT_SYMBOL(vfs_quota_on_mount);
2189EXPORT_SYMBOL(vfs_quota_off); 2196EXPORT_SYMBOL(vfs_quota_off);
2190EXPORT_SYMBOL(vfs_quota_sync); 2197EXPORT_SYMBOL(vfs_quota_sync);