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-rw-r--r--fs/ext4/namei.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 2a42cc04466f..7450ff01c3c4 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -55,6 +55,13 @@ static struct buffer_head *ext4_append(handle_t *handle,
{
struct buffer_head *bh;
+ if (unlikely(EXT4_SB(inode->i_sb)->s_max_dir_size_kb &&
+ ((inode->i_size >> 10) >=
+ EXT4_SB(inode->i_sb)->s_max_dir_size_kb))) {
+ *err = -ENOSPC;
+ return NULL;
+ }
+
*block = inode->i_size >> inode->i_sb->s_blocksize_bits;
bh = ext4_bread(handle, inode, *block, 1, err);