diff options
Diffstat (limited to 'fs/ext4/extents.c')
| -rw-r--r-- | fs/ext4/extents.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index d202d765dad2..c4068f6abf03 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -3644,6 +3644,10 @@ long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len) struct ext4_map_blocks map; unsigned int credits, blkbits = inode->i_blkbits; + /* We only support the FALLOC_FL_KEEP_SIZE mode */ + if (mode && (mode != FALLOC_FL_KEEP_SIZE)) + return -EOPNOTSUPP; + /* * currently supporting (pre)allocate mode for extent-based * files _only_ |