diff options
author | Kevin Wolf <kwolf@redhat.com> | 2013-12-05 13:01:46 +0100 |
---|---|---|
committer | Kevin Wolf <kwolf@redhat.com> | 2014-01-24 17:40:01 +0100 |
commit | 1ff735bdc417945bc6df1857861b127644b3f461 (patch) | |
tree | de2c1a0a320ef717d2076de32969d5ecf070c9dd | |
parent | e5354657a626b325c31888f33de88ac6d39e2fcb (diff) |
block: Detect unaligned length in bdrv_qiov_is_aligned()
For an O_DIRECT request to succeed, it's not only necessary that all
base addresses in the qiov are aligned, but also that each length in it
is aligned.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
-rw-r--r-- | block.c | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -4811,6 +4811,9 @@ bool bdrv_qiov_is_aligned(BlockDriverState *bs, QEMUIOVector *qiov) if ((uintptr_t) qiov->iov[i].iov_base % bs->buffer_alignment) { return false; } + if (qiov->iov[i].iov_len % bs->buffer_alignment) { + return false; + } } return true; |