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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Browse source 
Pull vfs updates from Al Viro:
 "The first vfs pile, with deep apologies for being very late in this
  window.

  Assorted cleanups and fixes, plus a large preparatory part of iov_iter
  work.  There's a lot more of that, but it'll probably go into the next
  merge window - it *does* shape up nicely, removes a lot of
  boilerplate, gets rid of locking inconsistencie between aio_write and
  splice_write and I hope to get Kent's direct-io rewrite merged into
  the same queue, but some of the stuff after this point is having
  (mostly trivial) conflicts with the things already merged into
  mainline and with some I want more testing.

  This one passes LTP and xfstests without regressions, in addition to
  usual beating.  BTW, readahead02 in ltp syscalls testsuite has started
  giving failures since "mm/readahead.c: fix readahead failure for
  memoryless NUMA nodes and limit readahead pages" - might be a false
  positive, might be a real regression..."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
  missing bits of "splice: fix racy pipe->buffers uses"
  cifs: fix the race in cifs_writev()
  ceph_sync_{,direct_}write: fix an oops on ceph_osdc_new_request() failure
  kill generic_file_buffered_write()
  ocfs2_file_aio_write(): switch to generic_perform_write()
  ceph_aio_write(): switch to generic_perform_write()
  xfs_file_buffered_aio_write(): switch to generic_perform_write()
  export generic_perform_write(), start getting rid of generic_file_buffer_write()
  generic_file_direct_write(): get rid of ppos argument
  btrfs_file_aio_write(): get rid of ppos
  kill the 5th argument of generic_file_buffered_write()
  kill the 4th argument of __generic_file_aio_write()
  lustre: don't open-code kernel_recvmsg()
  ocfs2: don't open-code kernel_recvmsg()
  drbd: don't open-code kernel_recvmsg()
  constify blk_rq_map_user_iov() and friends
  lustre: switch to kernel_sendmsg()
  ocfs2: don't open-code kernel_sendmsg()
  take iov_iter stuff to mm/iov_iter.c
  process_vm_access: tidy up a bit
  ...
This commit is contained in:
Linus Torvalds 2014-04-12 14:49:50 -07:00
commit 5166701b36
76 changed files with 911 additions and 1537 deletions
Download patch file Download diff file Expand all files Collapse all files

12
drivers/block/drbd/drbd_receiver.c
View file

@ -469,24 +469,14 @@ static void drbd_wait_ee_list_empty(struct drbd_device *device,
static int drbd_recv_short(struct socket *sock, void *buf, size_t size, int flags)
{
mm_segment_t oldfs;
struct kvec iov = {
.iov_base = buf,
.iov_len = size,
};
struct msghdr msg = {
.msg_iovlen = 1,
.msg_iov = (struct iovec *)&iov,
.msg_flags = (flags ? flags : MSG_WAITALL | MSG_NOSIGNAL)
};
int rv;
oldfs = get_fs();
set_fs(KERNEL_DS);
rv = sock_recvmsg(sock, &msg, size, msg.msg_flags);
set_fs(oldfs);
return rv;
return kernel_recvmsg(sock, &msg, &iov, 1, size, msg.msg_flags);
}
static int drbd_recv(struct drbd_connection *connection, void *buf, size_t size)

48
drivers/block/nbd.c
View file

@ -630,37 +630,29 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
}
case NBD_CLEAR_SOCK: {
struct file *file;
struct socket *sock = nbd->sock;
nbd->sock = NULL;
file = nbd->file;
nbd->file = NULL;
nbd_clear_que(nbd);
BUG_ON(!list_empty(&nbd->queue_head));
BUG_ON(!list_empty(&nbd->waiting_queue));
kill_bdev(bdev);
if (file)
fput(file);
if (sock)
sockfd_put(sock);
return 0;
}
case NBD_SET_SOCK: {
struct file *file;
if (nbd->file)
struct socket *sock;
int err;
if (nbd->sock)
return -EBUSY;
file = fget(arg);
if (file) {
struct inode *inode = file_inode(file);
if (S_ISSOCK(inode->i_mode)) {
nbd->file = file;
nbd->sock = SOCKET_I(inode);
if (max_part > 0)
bdev->bd_invalidated = 1;
nbd->disconnect = 0; /* we're connected now */
return 0;
} else {
fput(file);
}
sock = sockfd_lookup(arg, &err);
if (sock) {
nbd->sock = sock;
if (max_part > 0)
bdev->bd_invalidated = 1;
nbd->disconnect = 0; /* we're connected now */
return 0;
}
return -EINVAL;
}
@ -697,12 +689,12 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
case NBD_DO_IT: {
struct task_struct *thread;
struct file *file;
struct socket *sock;
int error;
if (nbd->pid)
return -EBUSY;
if (!nbd->file)
if (!nbd->sock)
return -EINVAL;
mutex_unlock(&nbd->tx_lock);
@ -731,15 +723,15 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
if (error)
return error;
sock_shutdown(nbd, 0);
file = nbd->file;
nbd->file = NULL;
sock = nbd->sock;
nbd->sock = NULL;
nbd_clear_que(nbd);
dev_warn(disk_to_dev(nbd->disk), "queue cleared\n");
kill_bdev(bdev);
queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, nbd->disk->queue);
set_device_ro(bdev, false);
if (file)
fput(file);
if (sock)
sockfd_put(sock);
nbd->flags = 0;
nbd->bytesize = 0;
bdev->bd_inode->i_size = 0;
@ -875,9 +867,7 @@ static int __init nbd_init(void)
for (i = 0; i < nbds_max; i++) {
struct gendisk *disk = nbd_dev[i].disk;
nbd_dev[i].file = NULL;
nbd_dev[i].magic = NBD_MAGIC;
nbd_dev[i].flags = 0;
INIT_LIST_HEAD(&nbd_dev[i].waiting_queue);
spin_lock_init(&nbd_dev[i].queue_lock);
INIT_LIST_HEAD(&nbd_dev[i].queue_head);