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authorDavid S. Miller <davem@davemloft.net>2016-07-06 19:35:22 +0200
committerDavid S. Miller <davem@davemloft.net>2016-07-06 19:35:22 +0200
commit30d0844bdcea9fb8b0b3c8abfa5547bc3bcf8baa (patch)
tree87302af9e03ee50cf135cc9ce6589f41fe3b3db1 /fs/dax.c
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next (diff)
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff)
downloadlinux-30d0844bdcea9fb8b0b3c8abfa5547bc3bcf8baa.tar.xz
linux-30d0844bdcea9fb8b0b3c8abfa5547bc3bcf8baa.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/ethernet/mellanox/mlx5/core/en.h drivers/net/ethernet/mellanox/mlx5/core/en_main.c drivers/net/usb/r8152.c All three conflicts were overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/dax.c')
-rw-r--r--fs/dax.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/dax.c b/fs/dax.c
index 761495bf5eb9..e207f8f9b700 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -208,7 +208,12 @@ static ssize_t dax_io(struct inode *inode, struct iov_iter *iter,
dax.addr += first;
size = map_len - first;
}
- max = min(pos + size, end);
+ /*
+ * pos + size is one past the last offset for IO,
+ * so pos + size can overflow loff_t at extreme offsets.
+ * Cast to u64 to catch this and get the true minimum.
+ */
+ max = min_t(u64, pos + size, end);
}
if (iov_iter_rw(iter) == WRITE) {