diff options
| -rw-r--r-- | fs/ext4/extents.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index f0e6934291dd..0e9de2328bd2 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -4731,6 +4731,7 @@ static long ext4_zero_range(struct file *file, loff_t offset, loff_t new_size = 0; int ret = 0; int flags; + int credits; int partial; loff_t start, end; ext4_lblk_t lblk; @@ -4830,8 +4831,14 @@ static long ext4_zero_range(struct file *file, loff_t offset, if (ret) goto out_dio; } - - handle = ext4_journal_start(inode, EXT4_HT_MISC, 4); + /* + * In worst case we have to writeout two nonadjacent unwritten + * blocks and update the inode + */ + credits = (2 * ext4_ext_index_trans_blocks(inode, 2)) + 1; + if (ext4_should_journal_data(inode)) + credits += 2; + handle = ext4_journal_start(inode, EXT4_HT_MISC, credits); if (IS_ERR(handle)) { ret = PTR_ERR(handle); ext4_std_error(inode->i_sb, ret); |