linux-toradex.git/fs/proc/proc_sysctl.c, branch v4.1.5

sysctl: Allow creating permanently empty directories that serve as mountpoints.

2015-07-21T17:10:00+00:00

commit f9bd6733d3f11e24f3949becf277507d422ee1eb upstream.

Add a magic sysctl table sysctl_mount_point that when used to
create a directory forces that directory to be permanently empty.

Update the code to use make_empty_dir_inode when accessing permanently
empty directories.

Update the code to not allow adding to permanently empty directories.

Update /proc/sys/fs/binfmt_misc to be a permanently empty directory.

Signed-off-by: "Eric W. Biederman" 
Signed-off-by: Greg Kroah-Hartman

VFS: normal filesystems (and lustre): d_inode() annotations

2015-04-15T19:06:57+00:00

that's the bulk of filesystem drivers dealing with inodes of their own

Signed-off-by: David Howells 
Signed-off-by: Al Viro

sysctl: remove typedef ctl_table

2014-08-08T22:57:24+00:00

Remove the final user, and the typedef itself.

Signed-off-by: Joe Perches 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Don't pass inode to ->d_hash() and ->d_compare()

2013-06-29T08:57:36+00:00

Instances either don't look at it at all (the majority of cases) or
only want it to find the superblock (which can be had as dentry->d_sb).
A few cases that want more are actually safe with dentry->d_inode -
the only precaution needed is the check that it hadn't been replaced with
NULL by rmdir() or by overwriting rename(), which case should be simply
treated as cache miss.

Signed-off-by: Linus Torvalds 
Signed-off-by: Al Viro

[readdir] convert procfs

2013-06-29T08:56:32+00:00

Signed-off-by: Al Viro

fs/proc: clean up printks

2013-02-28T03:10:11+00:00

- use pr_foo() throughout

- remove a couple of duplicated KERN_WARNINGs, via WARN(KERN_WARNING "...")

- nuke a few warnings which I've never seen happen, ever.

Cc: Joe Perches 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

new helper: file_inode(file)

2013-02-23T04:31:31+00:00

Signed-off-by: Al Viro

procfs: drop vmtruncate

2012-12-20T19:00:01+00:00

Removed vmtruncate

Signed-off-by: Marco Stornelli 
Signed-off-by: Al Viro

sysctl: Pass useful parameters to sysctl permissions

2012-11-19T01:30:55+00:00

- Current is implicitly avaiable so passing current->nsproxy isn't useful.
- The ctl_table_header is needed to find how the sysctl table is connected
  to the rest of sysctl.
- ctl_table_root is avaiable in the ctl_table_header so no need to it.

With these changes it becomes possible to write a version of
net_sysctl_permission that takes into account the network namespace of
the sysctl table, an important feature in extending the user namespace.

Acked-by: Serge Hallyn 
Signed-off-by: "Eric W. Biederman" 
Signed-off-by: David S. Miller

rbtree: fix incorrect rbtree node insertion in fs/proc/proc_sysctl.c

2012-10-09T07:22:32+00:00

The recently added code to use rbtrees in sysctl did not follow the proper
rbtree interface on insertion - it was calling rb_link_node() which
inserts a new node into the binary tree, but missed the call to
rb_insert_color() which properly balances the rbtree and establishes all
expected rbtree invariants.

I found out about this only because faulty commit also used
rb_init_node(), which I am removing within this patchset.  But I think
it's an easy mistake to make, and it makes me wonder if we should change
the rbtree API so that insertions would be done with a single rb_insert()
call (even if its implementation could still inline the rb_link_node()
part and call a private __rb_insert_color function to do the rebalancing).

Signed-off-by: Michel Lespinasse 
Cc: Andrea Arcangeli 
Acked-by: David Woodhouse 
Cc: Rik van Riel 
Cc: Peter Zijlstra 
Cc: Daniel Santos 
Cc: Jens Axboe 
Cc: "Eric W. Biederman" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds