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-rw-r--r--fs/affs/file.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/affs/file.c b/fs/affs/file.c
index 7e83ba22bed4..d2468bf95669 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -398,6 +398,13 @@ affs_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter,
size_t count = iov_iter_count(iter);
ssize_t ret;
+ if (rw == WRITE) {
+ loff_t size = offset + count;
+
+ if (AFFS_I(inode)->mmu_private < size)
+ return 0;
+ }
+
ret = blockdev_direct_IO(rw, iocb, inode, iter, offset, affs_get_block);
if (ret < 0 && (rw & WRITE))
affs_write_failed(mapping, offset + count);