diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/open.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/open.c b/fs/open.c index 5a2c6ebc22b5..b47aab39c057 100644 --- a/fs/open.c +++ b/fs/open.c @@ -233,6 +233,14 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len) if (!(file->f_mode & FMODE_WRITE)) return -EBADF; + + /* It's not possible punch hole on append only file */ + if (mode & FALLOC_FL_PUNCH_HOLE && IS_APPEND(inode)) + return -EPERM; + + if (IS_IMMUTABLE(inode)) + return -EPERM; + /* * Revalidate the write permissions, in case security policy has * changed since the files were opened. |