[PATCH 3.12 119/182] ext4: use i_size_read in ext4_unaligned_aio()

Jiri Slaby
2014-05-13T10:11:59Z

From: Theodore Ts'o <tytso@mit.edu>

3.12-stable review patch. If anyone has any objections, please let me know.

===============

commit 6e6358fc3c3c862bfe9a5bc029d3f8ce43dc9765 upstream.

We haven't taken i_mutex yet, so we need to use i_size_read().

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
fs/ext4/file.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 3da21945ff1f..1b890101397b 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -82,7 +82,7 @@ ext4_unaligned_aio(struct inode *inode, const struct iovec *iov,
size_t count = iov_length(iov, nr_segs);
loff_t final_size = pos + count;

- if (pos >= inode->i_size)
+ if (pos >= i_size_read(inode))
return 0;

if ((pos & blockmask) || (final_size & blockmask))
--
1.9.3