From 00fff4dd58661944af9cb4fe8fe61b4105931776 Mon Sep 17 00:00:00 2001 From: Kent Overstreet Date: Tue, 16 Jan 2024 11:38:04 -0500 Subject: bcachefs: bios must be 512 byte algined Fixes: 023f9ac9f70f bcachefs: Delete dio read alignment check Reported-by: Brian Foster Signed-off-by: Kent Overstreet --- fs/bcachefs/fs-io-direct.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/bcachefs/fs-io-direct.c b/fs/bcachefs/fs-io-direct.c index fdd57c5785c9..e3b219e19e10 100644 --- a/fs/bcachefs/fs-io-direct.c +++ b/fs/bcachefs/fs-io-direct.c @@ -77,6 +77,10 @@ static int bch2_direct_IO_read(struct kiocb *req, struct iov_iter *iter) bch2_inode_opts_get(&opts, c, &inode->ei_inode); + /* bios must be 512 byte aligned: */ + if ((offset|iter->count) & (SECTOR_SIZE - 1)) + return -EINVAL; + ret = min_t(loff_t, iter->count, max_t(loff_t, 0, i_size_read(&inode->v) - offset)); -- cgit v1.2.3-70-g09d2