linux.git/fs/splice.c, branch v3.15

vfs: fix vmplice_to_user()

2014-05-28T05:54:52+00:00

Commit 6130f5315ee8 "switch vmsplice_to_user() to copy_page_to_iter()" in
v3.15-rc1 broke vmsplice(2).

This patch fixes two bugs:

 - count is not initialized to a proper value, which resulted in no data
   being copied

 - if rw_copy_check_uvector() returns negative then the iov might be leaked.

Tested OK.

Signed-off-by: Miklos Szeredi 
Signed-off-by: Al Viro

switch vmsplice_to_user() to copy_page_to_iter()

2014-04-02T03:19:23+00:00

I've switched the sanity checks on iovec to rw_copy_check_uvector();
we might need to do a local analog, if any behaviour differences are
not actually bugfixes here...

Signed-off-by: Al Viro

pipe: kill ->map() and ->unmap()

2014-04-02T03:19:19+00:00

all pipe_buffer_operations have the same instances of those...

Signed-off-by: Al Viro

fuse: fix pipe_buf_operations

2014-01-22T18:36:57+00:00

Having this struct in module memory could Oops when if the module is
unloaded while the buffer still persists in a pipe.

Since sock_pipe_buf_ops is essentially the same as fuse_dev_pipe_buf_steal
merge them into nosteal_pipe_buf_ops (this is the same as
default_pipe_buf_ops except stealing the page from the buffer is not
allowed).

Reported-by: Al Viro 
Signed-off-by: Miklos Szeredi 
Cc: stable@vger.kernel.org

file->f_op is never NULL...

2013-10-25T03:34:54+00:00

Signed-off-by: Al Viro

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

2013-07-03T16:10:19+00:00

Pull second set of VFS changes from Al Viro:
 "Assorted f_pos race fixes, making do_splice_direct() safe to call with
  i_mutex on parent, O_TMPFILE support, Jeff's locks.c series,
  ->d_hash/->d_compare calling conventions changes from Linus, misc
  stuff all over the place."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
  Document ->tmpfile()
  ext4: ->tmpfile() support
  vfs: export lseek_execute() to modules
  lseek_execute() doesn't need an inode passed to it
  block_dev: switch to fixed_size_llseek()
  cpqphp_sysfs: switch to fixed_size_llseek()
  tile-srom: switch to fixed_size_llseek()
  proc_powerpc: switch to fixed_size_llseek()
  ubi/cdev: switch to fixed_size_llseek()
  pci/proc: switch to fixed_size_llseek()
  isapnp: switch to fixed_size_llseek()
  lpfc: switch to fixed_size_llseek()
  locks: give the blocked_hash its own spinlock
  locks: add a new "lm_owner_key" lock operation
  locks: turn the blocked_list into a hashtable
  locks: convert fl_link to a hlist_node
  locks: avoid taking global lock if possible when waking up blocked waiters
  locks: protect most of the file_lock handling with i_lock
  locks: encapsulate the fl_link list handling
  locks: make "added" in __posix_lock_file a bool
  ...

splice: lift checks from do_splice_from() into callers

2013-06-29T08:57:35+00:00

Signed-off-by: Al Viro

lift file_*_write out of do_splice_direct()

2013-06-29T08:57:08+00:00

Signed-off-by: Al Viro

lift file_*_write out of do_splice_from()

2013-06-29T08:57:08+00:00

Signed-off-by: Al Viro

fs: fix new splice.c kernel-doc warning

2013-06-24T02:19:56+00:00

Fix new kernel-doc warning in fs/splice.c:

  Warning(fs/splice.c:1298): No description found for parameter 'opos'

Signed-off-by: Randy Dunlap 
Cc: Al Viro 
Signed-off-by: Linus Torvalds