Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / fs / ext4 / move_extent.c

diff --git a/kernel/fs/ext4/move_extent.c b/kernel/fs/ext4/move_extent.c
index e032a04..7861d80 100644 (file)
--- a/kernel/fs/ext4/move_extent.c
+++ b/kernel/fs/ext4/move_extent.c
@@ -60,10 +60,10 @@ ext4_double_down_write_data_sem(struct inode *first, struct inode *second)
 {
        if (first < second) {
                down_write(&EXT4_I(first)->i_data_sem);
-               down_write_nested(&EXT4_I(second)->i_data_sem, SINGLE_DEPTH_NESTING);
+               down_write_nested(&EXT4_I(second)->i_data_sem, I_DATA_SEM_OTHER);
        } else {
                down_write(&EXT4_I(second)->i_data_sem);
-               down_write_nested(&EXT4_I(first)->i_data_sem, SINGLE_DEPTH_NESTING);
+               down_write_nested(&EXT4_I(first)->i_data_sem, I_DATA_SEM_OTHER);
 
        }
 }
@@ -390,6 +390,7 @@ data_copy:
                *err = ext4_get_block(orig_inode, orig_blk_offset + i, bh, 0);
                if (*err < 0)
                        break;
+               bh = bh->b_this_page;
        }
        if (!*err)
                *err = block_commit_write(pagep[0], from, from + replaced_size);
@@ -483,6 +484,13 @@ mext_check_arguments(struct inode *orig_inode,
                return -EBUSY;
        }
 
+       if (IS_NOQUOTA(orig_inode) || IS_NOQUOTA(donor_inode)) {
+               ext4_debug("ext4 move extent: The argument files should "
+                       "not be quota files [ino:orig %lu, donor %lu]\n",
+                       orig_inode->i_ino, donor_inode->i_ino);
+               return -EBUSY;
+       }
+
        /* Ext4 move extent supports only extent based file */
        if (!(ext4_test_inode_flag(orig_inode, EXT4_INODE_EXTENTS))) {
                ext4_debug("ext4 move extent: orig file is not extents "
@@ -590,6 +598,13 @@ ext4_move_extents(struct file *o_filp, struct file *d_filp, __u64 orig_blk,
                return -EOPNOTSUPP;
        }
 
+       if (ext4_encrypted_inode(orig_inode) ||
+           ext4_encrypted_inode(donor_inode)) {
+               ext4_msg(orig_inode->i_sb, KERN_ERR,
+                        "Online defrag not supported for encrypted files");
+               return -EOPNOTSUPP;
+       }
+
        /* Protect orig and donor inodes against a truncate */
        lock_two_nondirectories(orig_inode, donor_inode);