diff options
Diffstat (limited to 'fs/read_write.c')
| -rw-r--r-- | fs/read_write.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/fs/read_write.c b/fs/read_write.c index 2c3263530828..befec0b5c537 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1830,18 +1830,21 @@ int generic_file_rw_checks(struct file *file_in, struct file *file_out) return 0; } -bool generic_atomic_write_valid(struct kiocb *iocb, struct iov_iter *iter) +int generic_atomic_write_valid(struct kiocb *iocb, struct iov_iter *iter) { size_t len = iov_iter_count(iter); if (!iter_is_ubuf(iter)) - return false; + return -EINVAL; if (!is_power_of_2(len)) - return false; + return -EINVAL; if (!IS_ALIGNED(iocb->ki_pos, len)) - return false; + return -EINVAL; - return true; + if (!(iocb->ki_flags & IOCB_DIRECT)) + return -EOPNOTSUPP; + + return 0; } |