linux-toradex.git/fs/bfs/inode.c, branch v2.6.32.4

bfs: add ->sync_fs

2009-06-12T01:36:14+00:00

Add a ->sync_fs method for data integrity syncs, and reimplement
->write_super ontop of it.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Al Viro

repair bfs_write_inode(), switch bfs to simple_fsync()

2009-06-12T01:36:14+00:00

Signed-off-by: Al Viro

push BKL down into ->put_super

2009-06-12T01:36:07+00:00

Move BKL into ->put_super from the only caller.  A couple of
filesystems had trivial enough ->put_super (only kfree and NULLing of
s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs,
hugetlbfs, omfs, qnx4, shmem, all others got the full treatment.  Most
of them probably don't need it, but I'd rather sort that out individually.
Preferably after all the other BKL pushdowns in that area.

[AV: original used to move lock_super() down as well; these changes are
removed since we don't do lock_super() at all in generic_shutdown_super()
now]
[AV: fuse, btrfs and xfs are known to need no damn BKL, exempt]

Signed-off-by: Christoph Hellwig 
Signed-off-by: Al Viro

remove ->write_super call in generic_shutdown_super

2009-06-12T01:36:06+00:00

We just did a full fs writeout using sync_filesystem before, and if
that's not enough for the filesystem it can perform it's own writeout
in ->put_super, which many filesystems already do.

Move a call to foofs_write_super into every foofs_put_super for now to
guarantee identical behaviour until it's cleaned up by the individual
filesystem maintainers.

Exceptions:

 - affs already has identical copy & pasted code at the beginning of
   affs_put_super so no need to do it twice.
 - xfs does the right thing without it and I have changes pending for
   the xfs tree touching this are so I don't really need conflicts
   here..

Signed-off-by: Christoph Hellwig 
Signed-off-by: Al Viro

bfs: check that filesystem fits on the blockdevice

2009-01-06T23:59:31+00:00

Since all sanity checks rely on the validity of s_start which gets only
checked to be smaller than s_end, we should also check if s_end is sane.
Now we also try to retrieve the last block of the filesystem, which is
computed by s_end.  If this fails, something is bogus.

Signed-off-by: Eric Sesterhenn 
Acked-by: Tigran Aivazian 

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

bfs: add some basic sanity checks

2009-01-06T23:59:31+00:00

bfs_fill_super() already touches all inodes, so we can easily add some
cheap sanity checks and check if the inode start and end blocks are
smaller than the maximum number of blocks, the inode start block lies
behind the end block or the file end offset is behind the end of the
filesystem.  Also check if the start of data offset in the super block
fits the filesystem.

The added sanity checks catch softlockup issues early when we try to
sb_bread() lots of blocks in a loop in bfs_readdir() and bfs_find_entry().
 In addition an oom issue in bfs_fill_super() is prevented by this when
s_start is corrupted, which influences imap_len and we try to allocate a
huge info->si_imap.

Signed-off-by: Eric Sesterhenn 
Acked-by: Tigran Aivazian 

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

SL*B: drop kmem cache argument from constructor

2008-07-26T19:00:07+00:00

Kmem cache passed to constructor is only needed for constructors that are
themselves multiplexeres.  Nobody uses this "feature", nor does anybody uses
passed kmem cache in non-trivial way, so pass only pointer to object.

Non-trivial places are:
	arch/powerpc/mm/init_64.c
	arch/powerpc/mm/hugetlbpage.c

This is flag day, yes.

Signed-off-by: Alexey Dobriyan 
Acked-by: Pekka Enberg 
Acked-by: Christoph Lameter 
Cc: Jon Tollefson 
Cc: Nick Piggin 
Cc: Matt Mackall 
[akpm@linux-foundation.org: fix arch/powerpc/mm/hugetlbpage.c]
[akpm@linux-foundation.org: fix mm/slab.c]
[akpm@linux-foundation.org: fix ubifs]
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

bfs: kill BKL

2008-07-26T19:00:03+00:00

Replace the BKL-based locking scheme used in the bfs driver by a private
filesystem-wide mutex.

Signed-off-by: Dmitri Vorobiev 
Cc: Tigran Aivazian 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

bfs: assorted cleanups

2008-07-26T19:00:03+00:00

This patch makes the following cleanups:

	o removing an unused variable from bfs_fill_super();
	o removing unneeded blank spaces from pointer
	  definitions.

Signed-off-by: Dmitri Vorobiev 
Cc: Tigran Aivazian 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

iget: stop BFS from using iget() and read_inode()

2008-02-07T16:42:27+00:00

Stop the BFS filesystem from using iget() and read_inode().  Replace
bfs_read_inode() with bfs_iget(), and call that instead of iget().  bfs_iget()
then uses iget_locked() directly and returns a proper error code instead of an
inode in the event of an error.

bfs_fill_super() returns any error incurred when getting the root inode
instead of EINVAL.

[kamalesh@linux.vnet.ibm.com: build fix]
Signed-off-by: David Howells 
Acked-by: Christoph Hellwig 
Signed-off-by: Kamalesh Babulal 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds