linux-stable.git/include/linux/uio.h, branch v3.19.3

new helper: iter_is_iovec()

2014-12-17T11:43:56+00:00

Signed-off-by: Al Viro

bury memcpy_toiovec()

2014-12-09T21:29:11+00:00

no users left

Signed-off-by: Al Viro

copy_from_iter_nocache()

2014-12-09T01:25:23+00:00

BTW, do we want memcpy_nocache()?

Signed-off-by: Al Viro

new helper: iov_iter_kvec()

2014-12-09T01:25:23+00:00

initialization of kvec-backed iov_iter

Signed-off-by: Al Viro

csum_and_copy_..._iter()

2014-12-09T01:25:22+00:00

Signed-off-by: Al Viro

iov_iter.c: handle ITER_KVEC directly

2014-12-09T00:52:00+00:00

... without bothering with copy_..._user()

Signed-off-by: Al Viro

Add copy_to_iter(), copy_from_iter() and iov_iter_zero()

2014-10-09T06:39:03+00:00

For DAX, we want to be able to copy between iovecs and kernel addresses
that don't necessarily have a struct page.  This is a fairly simple
rearrangement for bvec iters to kmap the pages outside and pass them in,
but for user iovecs it gets more complicated because we might try various
different ways to kmap the memory.  Duplicating the existing logic works
out best in this case.

We need to be able to write zeroes to an iovec for reads from unwritten
ranges in a file.  This is performed by the new iov_iter_zero() function,
again patterned after the existing code that handles iovec iterators.

[AV: and export the buggers...]

Signed-off-by: Matthew Wilcox 
Signed-off-by: Al Viro

fuse: honour max_read and max_write in direct_io mode

2014-09-27T01:16:51+00:00

The third argument of fuse_get_user_pages() "nbytesp" refers to the number of
bytes a caller asked to pack into fuse request. This value may be lesser
than capacity of fuse request or iov_iter.  So fuse_get_user_pages() must
ensure that *nbytesp won't grow.

Now, when helper iov_iter_get_pages() performs all hard work of extracting
pages from iov_iter, it can be done by passing properly calculated
"maxsize" to the helper.

The other caller of iov_iter_get_pages() (dio_refill_pages()) doesn't need
this capability, so pass LONG_MAX as the maxsize argument here.

Fixes: c9c37e2e6378 ("fuse: switch to iov_iter_get_pages()")
Reported-by: Werner Baumann 
Tested-by: Maxim Patlasov 
Signed-off-by: Miklos Szeredi 
Signed-off-by: Al Viro

switch iov_iter_get_pages() to passing maximal number of pages

2014-08-07T18:40:11+00:00

... instead of maximal size.

Signed-off-by: Al Viro

Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

2014-06-28T16:43:58+00:00

Pull SCSI target fixes from Nicholas Bellinger:
 "Mostly minor fixes this time around.  The highlights include:

   - iscsi-target CHAP authentication fixes to enforce explicit key
     values (Tejas Vaykole + rahul.rane)
   - fix a long-standing OOPs in target-core when a alua configfs
     attribute is accessed after port symlink has been removed.
     (Sebastian Herbszt)
   - fix a v3.10.y iscsi-target regression causing the login reject
     status class/detail to be ignored (Christoph Vu-Brugier)
   - fix a v3.10.y iscsi-target regression to avoid rejecting an
     existing ITT during Data-Out when data-direction is wrong (Santosh
     Kulkarni + Arshad Hussain)
   - fix a iscsi-target related shutdown deadlock on UP kernels (Mikulas
     Patocka)
   - fix a v3.16-rc1 build issue with vhost-scsi + !CONFIG_NET (MST)"

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  iscsi-target: fix iscsit_del_np deadlock on unload
  iovec: move memcpy_from/toiovecend to lib/iovec.c
  iscsi-target: Avoid rejecting incorrect ITT for Data-Out
  tcm_loop: Fix memory leak in tcm_loop_submission_work error path
  iscsi-target: Explicily clear login response PDU in exception path
  target: Fix left-over se_lun->lun_sep pointer OOPs
  iscsi-target; Enforce 1024 byte maximum for CHAP_C key value
  iscsi-target: Convert chap_server_compute_md5 to use kstrtoul