XFS development tree branch, for-next, updated. xfs-for-linus-3.16-rc1-13101-ga497c3b

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The branch, for-next has been updated
16b9057 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
9c1d528 Merge commit '9f12600fe425bc28f0ccba034a77783c09c15af4' into for-linus 8d02076 ->splice_write() via ->write_iter()
412dd3a Merge tag 'xfs-for-linus-3.16-rc1' of git://oss.sgi.com/xfs/xfs
23adbe1 fs,userns: Change inode_capable to capable_wrt_inode_uidgid
bf97f3b xfs: switch to ->write_iter()
b4f5d2c xfs: switch to ->read_iter()
b318891 xfs: trim the argument lists of xfs_file_{dio,buffered}_aio_write() 0c94933 iov_iter_truncate()
71d8e53 start adding the tag to iov_iter
31b1403 switch {__,}blockdev_direct_IO() to iov_iter
a6cbcd4 get rid of pointless iov_length() in ->direct_IO()
d8d3d94 pass iov_iter to ->direct_IO()
cb66a7a kill generic_segment_checks()
f8579f8 generic_file_direct_write(): switch to iov_iter

      from  7691283d0561a350b7517be94818669fb5e3d910 (commit)

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- Log ----------------------------------------------------------------- commit 16b9057804c02e2d351e9c8f606e909b43cbd9e7
Merge: 5c02c39 c2338f2
Author: Linus Torvalds <[email protected]>
Date: Thu Jun 12 10:30:18 2014 -0700

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

Pull vfs updates from Al Viro:
"This the bunch that sat in -next + lock_parent() fix. This is the
minimal set; there's more pending stuff.

In particular, I really hope to get acct.c fixes merged this cycle - we need that to deal sanely with delayed-mntput stuff. In the next pile, hopefully - that series is fairly short and localized (kernel/acct.c, fs/super.c and fs/namespace.c). In this pile: more iov_iter work. Most of prereqs for ->splice_write with sane locking order are there and Kent's dio rewrite would also fit nicely on top of this pile"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (70 commits)
lock_parent: don't step on stale ->d_parent of all-but-freed one
kill generic_file_splice_write()
ceph: switch to iter_file_splice_write()
shmem: switch to iter_file_splice_write()
nfs: switch to iter_splice_write_file()
fs/splice.c: remove unneeded exports
ocfs2: switch to iter_file_splice_write()
->splice_write() via ->write_iter()
bio_vec-backed iov_iter
optimize copy_page_{to,from}_iter()
bury generic_file_aio_{read,write}
lustre: get rid of messing with iovecs
ceph: switch to ->write_iter()
ceph_sync_direct_write: stop poking into iov_iter guts
ceph_sync_read: stop poking into iov_iter guts
new helper: copy_page_from_iter()
fuse: switch to ->write_iter()
btrfs: switch to ->write_iter()
ocfs2: switch to ->write_iter()
xfs: switch to ->write_iter()
...

commit 9c1d5284c79fea050f115eadeec1dd1758e5c630
Merge: 5f07385 9f12600
Author: Al Viro <[email protected]>
Date: Thu Jun 12 00:27:11 2014 -0400

Merge commit '9f12600fe425bc28f0ccba034a77783c09c15af4' into for-linus

Backmerge of dcache.c changes from mainline. It's that, or complete rebase...

Conflicts:
fs/splice.c

commit 8d0207652cbe27d1f962050737848e5ad4671958

Author: Al Viro <[email protected]>
Date:   Sat Apr 5 04:27:08 2014 -0400

->splice_write() via ->write_iter()

iter_file_splice_write() - a ->splice_write() instance that gathers the pipe buffers, builds a bio_vec-based iov_iter covering those and feeds it to ->write_iter(). A bunch of simple cases coverted to that...

[AV: fixed the braino spotted by Cyrill]

commit 412dd3a6daf0cadce1b2d6a34fa3713f40255579
Merge: 23d4ed5 7691283
Author: Linus Torvalds <[email protected]>
Date: Wed Jun 11 09:03:47 2014 -0700

Merge tag 'xfs-for-linus-3.16-rc1' of git://oss.sgi.com/xfs/xfs

Pull xfs updates from Dave Chinner:
"This update contains:
- cleanup removing unused function args
- rework of the filestreams allocator to use dentry cache parent lookups
- new on-disk free inode btree and optimised inode allocator
- various bug fixes
- rework of internal attribute API
- cleanup of superblock feature bit support to remove historic cruft
- more fixes and minor cleanups
- added a new directory/attribute geometry abstraction
- yet more fixes and minor cleanups"

* tag 'xfs-for-linus-3.16-rc1' of git://oss.sgi.com/xfs/xfs: (86 commits)
xfs: fix xfs_da_args sparse warning in xfs_readdir
xfs: Fix rounding in xfs_alloc_fix_len()
xfs: tone down writepage/releasepage WARN_ONs
xfs: small cleanup in xfs_lowbit64()
xfs: kill xfs_buf_geterror()
xfs: xfs_readsb needs to check for magic numbers
xfs: block allocation work needs to be kswapd aware
xfs: remove redundant geometry information from xfs_da_state
xfs: replace attr LBSIZE with xfs_da_geometry
xfs: pass xfs_da_args to xfs_attr_leaf_newentsize
xfs: use xfs_da_geometry for block size in attr code
xfs: remove mp->m_dir_geo from directory logging
xfs: reduce direct usage of mp->m_dir_geo
xfs: move node entry counts to xfs_da_geometry
xfs: convert dir/attr btree threshold to xfs_da_geometry
xfs: convert m_dirblksize to xfs_da_geometry
xfs: convert m_dirblkfsbs to xfs_da_geometry
xfs: convert directory segment limits to xfs_da_geometry
xfs: convert directory db conversion to xfs_da_geometry
xfs: convert directory dablk conversion to xfs_da_geometry
...

commit 23adbe12ef7d3d4195e80800ab36b37bee28cd03

Author: Andy Lutomirski <[email protected]>
Date:   Tue Jun 10 12:45:42 2014 -0700

fs,userns: Change inode_capable to capable_wrt_inode_uidgid

The kernel has no concept of capabilities with respect to inodes; inodes exist independently of namespaces. For example, inode_capable(inode, CAP_LINUX_IMMUTABLE) would be nonsense.

This patch changes inode_capable to check for uid and gid mappings and renames it to capable_wrt_inode_uidgid, which should make it more obvious what it does.

Fixes CVE-2014-4014.

commit bf97f3bc0c32140c43fe5ca53d23514ea46a54ca

Author: Al Viro <[email protected]>
Date:   Thu Apr 3 14:20:23 2014 -0400

xfs: switch to ->write_iter()

commit b4f5d2c6d1f88c79e48f1296076b3a6a22f58c0f

Author: Al Viro <[email protected]>
Date:   Wed Apr 2 14:37:59 2014 -0400

xfs: switch to ->read_iter()

commit b318891929c2750055a4002bee3e7636ca3684de

Author: Al Viro <[email protected]>
Date:   Wed Apr 2 07:06:30 2014 -0400

xfs: trim the argument lists of xfs_file_{dio,buffered}_aio_write()

pos is redundant (it's iocb->ki_pos), and iov/nr_segs/count are taken care of by lifting iov_iter into the caller.

commit 0c949334a9e2581646c6ff0d1470a805b1e5be99

Author: Al Viro <[email protected]>
Date:   Sat Mar 22 06:51:37 2014 -0400

iov_iter_truncate()

Now It Can Be Done(tm) - we don't need to do iov_shorten() in generic_file_direct_write() anymore, now that all ->direct_IO() instances are converted to proper iov_iter methods and honour iter->count and iter->iov_offset properly.

Get rid of count/ocount arguments of generic_file_direct_write(), while we are at it.

commit 71d8e532b1549a478e6a6a8a44f309d050294d00

Author: Al Viro <[email protected]>
Date:   Wed Mar 5 19:28:09 2014 -0500

start adding the tag to iov_iter

For now, just use the same thing we pass to ->direct_IO() - it's all iovec-based at the moment. Pass it explicitly to iov_iter_init() and account for kvec vs. iovec in there, by the same kludge NFS ->direct_IO() uses.

commit 31b140398ce56ab41646eda7f02bcb78d6a4c916

Author: Al Viro <[email protected]>
Date:   Wed Mar 5 01:33:16 2014 -0500

switch {__,}blockdev_direct_IO() to iov_iter

commit a6cbcd4a4a85e2fdb0b3344b88df2e8b3d526b9e

Author: Al Viro <[email protected]>
Date:   Tue Mar 4 22:38:00 2014 -0500

    get rid of pointless iov_length() in ->direct_IO()
    
    all callers have iov_length(iter->iov, iter->nr_segs) == iov_iter_count(iter)
    
    Signed-off-by: Al Viro <[email protected]>

commit d8d3d94b80aa1a1c0ca75c58b8abdc7356f38418

Author: Al Viro <[email protected]>
Date:   Tue Mar 4 21:27:34 2014 -0500

pass iov_iter to ->direct_IO()

unmodified, for now

commit cb66a7a1f149ff705fa37cad6d1252b046e0ad4f

Author: Al Viro <[email protected]>
Date:   Tue Mar 4 15:24:06 2014 -0500

kill generic_segment_checks()

all callers of ->aio_read() and ->aio_write() have iov/nr_segs already checked - generic_segment_checks() done after that is just an odd way to spell iov_length().

commit f8579f8673b7ecdb7a81d5d5bb1d981093d9aa94

Author: Al Viro <[email protected]>
Date:   Mon Mar 3 22:03:20 2014 -0500

generic_file_direct_write(): switch to iov_iter

-----------------------------------------------------------------------

Summary of changes:

 fs/xfs/xfs_aops.c  |  17 ++++----
 fs/xfs/xfs_file.c  | 119 ++++++++++++-----------------------------------------
 fs/xfs/xfs_ioctl.c |   2 +-
 fs/xfs/xfs_trace.h |   1 -
 4 files changed, 35 insertions(+), 104 deletions(-)

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