Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / fs / ocfs2 / file.c

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index f6cba566429d314fe82f9f433889d1e22111462a..a6651956482e121b460ccadb5446892efee220a7 100644 (file)
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1307,10 +1307,13 @@ bail:
        return err;
 }
 
-int ocfs2_permission(struct inode *inode, int mask)
+int ocfs2_permission(struct inode *inode, int mask, unsigned int flags)
 {
        int ret;
 
+       if (flags & IPERM_FLAG_RCU)
+               return -ECHILD;
+
        mlog_entry_void();
 
        ret = ocfs2_inode_lock(inode, NULL, 0);
@@ -1320,7 +1323,7 @@ int ocfs2_permission(struct inode *inode, int mask)
                goto out;
        }
 
-       ret = generic_permission(inode, mask, ocfs2_check_acl);
+       ret = generic_permission(inode, mask, flags, ocfs2_check_acl);
 
        ocfs2_inode_unlock(inode, 0);
 out:
@@ -1986,28 +1989,32 @@ int ocfs2_change_file_space(struct file *file, unsigned int cmd,
        return __ocfs2_change_file_space(file, inode, file->f_pos, cmd, sr, 0);
 }
 
-static long ocfs2_fallocate(struct inode *inode, int mode, loff_t offset,
+static long ocfs2_fallocate(struct file *file, int mode, loff_t offset,
                            loff_t len)
 {
+       struct inode *inode = file->f_path.dentry->d_inode;
        struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
        struct ocfs2_space_resv sr;
        int change_size = 1;
+       int cmd = OCFS2_IOC_RESVSP64;
 
+       if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
+               return -EOPNOTSUPP;
        if (!ocfs2_writes_unwritten_extents(osb))
                return -EOPNOTSUPP;
 
-       if (S_ISDIR(inode->i_mode))
-               return -ENODEV;
-
        if (mode & FALLOC_FL_KEEP_SIZE)
                change_size = 0;
 
+       if (mode & FALLOC_FL_PUNCH_HOLE)
+               cmd = OCFS2_IOC_UNRESVSP64;
+
        sr.l_whence = 0;
        sr.l_start = (s64)offset;
        sr.l_len = (s64)len;
 
-       return __ocfs2_change_file_space(NULL, inode, offset,
-                                        OCFS2_IOC_RESVSP64, &sr, change_size);
+       return __ocfs2_change_file_space(NULL, inode, offset, cmd, &sr,
+                                        change_size);
 }
 
 int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos,
@@ -2603,7 +2610,6 @@ const struct inode_operations ocfs2_file_iops = {
        .getxattr       = generic_getxattr,
        .listxattr      = ocfs2_listxattr,
        .removexattr    = generic_removexattr,
-       .fallocate      = ocfs2_fallocate,
        .fiemap         = ocfs2_fiemap,
 };
 
@@ -2635,6 +2641,7 @@ const struct file_operations ocfs2_fops = {
        .flock          = ocfs2_flock,
        .splice_read    = ocfs2_file_splice_read,
        .splice_write   = ocfs2_file_splice_write,
+       .fallocate      = ocfs2_fallocate,
 };
 
 const struct file_operations ocfs2_dops = {