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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-01 18:01:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-01 18:01:41 -0700
commit1f2609460c4a96ef19c6bd2dadea46ad47e6dfa1 (patch)
tree1084e6380e8993f5db802e849d0bfae5bc5fbed5
parentf88cf230a43e08b3fb615e0520900a414f037440 (diff)
parent6d2b6170c8914c6c69256b687651fb16d7ec3e18 (diff)
downloadlinux-1f2609460c4a96ef19c6bd2dadea46ad47e6dfa1.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro: "This contains a couple of fixes - one is the aio fix from Christoph, the other a fallocate() one from Eric" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: vfs: fix check for fallocate on active swapfile direct-io: fix AIO regression
-rw-r--r--fs/direct-io.c9
-rw-r--r--fs/open.c5
2 files changed, 6 insertions, 8 deletions
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 194d0d122ca..17e39b047de 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -71,7 +71,6 @@ struct dio_submit {
been performed at the start of a
write */
int pages_in_io; /* approximate total IO pages */
- size_t size; /* total request size (doesn't change)*/
sector_t block_in_file; /* Current offset into the underlying
file in dio_block units. */
unsigned blocks_available; /* At block_in_file. changes */
@@ -1104,7 +1103,8 @@ do_blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
unsigned blkbits = i_blkbits;
unsigned blocksize_mask = (1 << blkbits) - 1;
ssize_t retval = -EINVAL;
- loff_t end = offset + iov_iter_count(iter);
+ size_t count = iov_iter_count(iter);
+ loff_t end = offset + count;
struct dio *dio;
struct dio_submit sdio = { 0, };
struct buffer_head map_bh = { 0, };
@@ -1287,10 +1287,9 @@ do_blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
*/
BUG_ON(retval == -EIOCBQUEUED);
if (dio->is_async && retval == 0 && dio->result &&
- ((rw == READ) || (dio->result == sdio.size)))
+ (rw == READ || dio->result == count))
retval = -EIOCBQUEUED;
-
- if (retval != -EIOCBQUEUED)
+ else
dio_await_completion(dio);
if (drop_refcount(dio) == 0) {
diff --git a/fs/open.c b/fs/open.c
index 36662d03623..d6fd3acde13 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -263,11 +263,10 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
return -EPERM;
/*
- * We can not allow to do any fallocate operation on an active
- * swapfile
+ * We cannot allow any fallocate operation on an active swapfile
*/
if (IS_SWAPFILE(inode))
- ret = -ETXTBSY;
+ return -ETXTBSY;
/*
* Revalidate the write permissions, in case security policy has