linux.git/fs/affs, branch v3.6

affs: use memweight()

2012-07-31T00:25:16+00:00

Use memweight() to count the total number of bits set in memory area.

Signed-off-by: Akinobu Mita 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

don't pass nameidata to ->create()

2012-07-14T12:34:47+00:00

boolean "does it have to be exclusive?" flag is passed instead;
Local filesystem should just ignore it - the object is guaranteed
not to be there yet.

Signed-off-by: Al Viro

stop passing nameidata to ->lookup()

2012-07-14T12:34:32+00:00

Just the flags; only NFS cares even about that, but there are
legitimate uses for such argument.  And getting rid of that
completely would require splitting ->lookup() into a couple
of methods (at least), so let's leave that alone for now...

Signed-off-by: Al Viro

vfs: switch i_dentry/d_alias to hlist

2012-07-14T12:32:55+00:00

Signed-off-by: Al Viro

affs: unobfuscate affs_fix_dcache()

2012-07-14T12:32:52+00:00

and add a comment on what it's doing

Signed-off-by: Al Viro

affs: get rid of open-coded list_for_each_entry()

2012-07-14T12:32:52+00:00

Signed-off-by: Al Viro

affs: get rid of affs_sync_super

2012-07-14T12:32:45+00:00

This patch makes affs stop using the VFS '->write_super()' method along with
the 's_dirt' superblock flag, because they are on their way out.

The whole "superblock write-out" VFS infrastructure is served by the
'sync_supers()' kernel thread, which wakes up every 5 (by default) seconds and
writes out all dirty superblocks using the '->write_super()' call-back.  But the
problem with this thread is that it wastes power by waking up the system every
5 seconds, even if there are no diry superblocks, or there are no client
file-systems which would need this (e.g., btrfs does not use
'->write_super()'). So we want to kill it completely and thus, we need to make
file-systems to stop using the '->write_super()' VFS service, and then remove
it together with the kernel thread.

Signed-off-by: Artem Bityutskiy 
Signed-off-by: Al Viro

affs: introduce VFS superblock object back-reference

2012-07-14T12:32:45+00:00

Add an 'sb' VFS superblock back-reference to the 'struct affs_sb_info' data
structure - we will need to find the VFS superblock from a 'struct
affs_sb_info' object in the next patch, so this change is jut a preparation.

Signed-off-by: Artem Bityutskiy 
Signed-off-by: Al Viro

affs: stop using lock_super

2012-07-14T12:32:44+00:00

The VFS's 'lock_super()' and 'unlock_super()' calls are deprecated and unwanted
and just wait for a brave knight who'd kill them. This patch makes AFFS stop
using them and use the buffer-head's own lock instead.

Signed-off-by: Artem Bityutskiy 
Signed-off-by: Al Viro

affs: re-structure superblock locking a bit

2012-07-14T12:32:43+00:00

AFFS wants to serialize the superblock (the root block in AFFS terms) updates
and uses 'lock_super()/unlock_super()' for these purposes. This patch pushes the
locking down to the 'affs_commit_super()' from the callers.

Signed-off-by: Artem Bityutskiy 
Signed-off-by: Al Viro