linux-toradex.git/fs/ocfs2, branch v3.2.26

ocfs2: fix NULL pointer dereference in __ocfs2_change_file_space()

2012-07-25T03:11:14+00:00

commit a4e08d001f2e50bb8b3c4eebadcf08e5535f02ee upstream.

As ocfs2_fallocate() will invoke __ocfs2_change_file_space() with a NULL
as the first parameter (file), it may trigger a NULL pointer dereferrence
due to a missing check.

Addresses http://bugs.launchpad.net/bugs/1006012

Signed-off-by: Luis Henriques 
Reported-by: Bret Towe 
Tested-by: Bret Towe 
Cc: Sunil Mushran 
Acked-by: Joel Becker 
Acked-by: Mark Fasheh 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Ben Hutchings

ocfs2: clear unaligned io flag when dio fails

2012-07-12T03:32:17+00:00

commit 3e5d3c35a68c9a933bdbdd8685bd1a205b57e806 upstream.

The unaligned io flag is set in the kiocb when an unaligned
dio is issued, it should be cleared even when the dio fails,
or it may affect the following io which are using the same
kiocb.

Signed-off-by: Junxiao Bi 
Signed-off-by: Joel Becker 
Signed-off-by: Ben Hutchings

ocfs2: ->e_leaf_clusters endianness breakage

2012-05-11T12:14:14+00:00

commit 72094e43e3af5020510f920321d71f1798fa896d upstream.

le16, not le32...

Signed-off-by: Al Viro 
Signed-off-by: Ben Hutchings

ocfs2: ->rl_count endianness breakage

2012-05-11T12:14:14+00:00

commit 28748b325dc2d730ccc312830a91c4ae0c0d9379 upstream.

le16, not le32...

Signed-off-by: Al Viro 
Signed-off-by: Ben Hutchings

ocfs: ->rl_used breakage on big-endian

2012-05-11T12:14:14+00:00

commit e1bf4cc620fd143766ddfcee3b004a1d1bb34fd0 upstream.

it's le16, not le32 or le64...

Signed-off-by: Al Viro 
Signed-off-by: Ben Hutchings

ocfs2: ->l_next_free_req breakage on big-endian

2012-05-11T12:14:13+00:00

commit 3a251f04fe97c3d335b745c98e4b377e3c3899f2 upstream.

It's le16, not le32...

Signed-off-by: Al Viro 
Signed-off-by: Ben Hutchings

Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2

2011-12-01T22:55:34+00:00

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (31 commits)
  ocfs2: avoid unaligned access to dqc_bitmap
  ocfs2: Use filemap_write_and_wait() instead of write_inode_now()
  ocfs2: honor O_(D)SYNC flag in fallocate
  ocfs2: Add a missing journal credit in ocfs2_link_credits() -v2
  ocfs2: send correct UUID to cleancache initialization
  ocfs2: Commit transactions in error cases -v2
  ocfs2: make direntry invalid when deleting it
  fs/ocfs2/dlm/dlmlock.c: free kmem_cache_zalloc'd data using kmem_cache_free
  ocfs2: Avoid livelock in ocfs2_readpage()
  ocfs2: serialize unaligned aio
  ocfs2: Implement llseek()
  ocfs2: Fix ocfs2_page_mkwrite()
  ocfs2: Add comment about orphan scanning
  ocfs2: Clean up messages in the fs
  ocfs2/cluster: Cluster up now includes network connections too
  ocfs2/cluster: Add new function o2net_fill_node_map()
  ocfs2/cluster: Fix output in file elapsed_time_in_ms
  ocfs2/dlm: dlmlock_remote() needs to account for remastery
  ocfs2/dlm: Take inflight reference count for remotely mastered resources too
  ocfs2/dlm: Cleanup dlm_wait_for_node_death() and dlm_wait_for_node_recovery()
  ...

ocfs2: avoid unaligned access to dqc_bitmap

2011-12-01T22:39:32+00:00

The dqc_bitmap field of struct ocfs2_local_disk_chunk is 32-bit aligned,
but not 64-bit aligned.  The dqc_bitmap is accessed by ocfs2_set_bit(),
ocfs2_clear_bit(), ocfs2_test_bit(), or ocfs2_find_next_zero_bit().  These
are wrapper macros for ext2_*_bit() which need to take an unsigned long
aligned address (though some architectures are able to handle unaligned
address correctly)

So some 64bit architectures may not be able to access the dqc_bitmap
correctly.

This avoids such unaligned access by using another wrapper functions for
ext2_*_bit().  The code is taken from fs/ext4/mballoc.c which also need to
handle unaligned bitmap access.

Signed-off-by: Akinobu Mita 
Acked-by: Joel Becker 
Cc: Mark Fasheh 
Signed-off-by: Andrew Morton 
Signed-off-by: Joel Becker

ocfs2: Use filemap_write_and_wait() instead of write_inode_now()

2011-11-17T10:18:57+00:00

Since ocfs2 has no ->write_inode method, there's no point in calling
write_inode_now() from ocfs2_cleanup_delete_inode().  Use
filemap_write_and_wait() instead. This helps us to cleanup inode writing
interfaces...

Signed-off-by: Jan Kara 
Signed-off-by: Joel Becker

ocfs2: honor O_(D)SYNC flag in fallocate

2011-11-17T10:15:58+00:00

We need to sync the transaction which updates i_size if the file is marked
as needing sync semantics.

Signed-off-by: Mark Fasheh 
Signed-off-by: Joel Becker