Jan Kara 7f5aa21508 jbd2: Avoid possible NULL dereference in jbd2_journal_begin_ordered_truncate() ... If we race with commit code setting i_transaction to NULL, we could possibly dereference it. Proper locking requires the journal pointer (to access journal->j_list_lock), which we don't have. So we have to change the prototype of the function so that filesystem passes us the journal pointer. Also add a more detailed comment about why the function jbd2_journal_begin_ordered_truncate() does what it does and how it should be used. Thanks to Dan Carpenter <error27@gmail.com> for pointing to the suspitious code. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Acked-by: Joel Becker <joel.becker@oracle.com> CC: linux-ext4@vger.kernel.org CC: ocfs2-devel@oss.oracle.com CC: mfasheh@suse.de CC: Dan Carpenter <error27@gmail.com>		2009-02-10 11:15:34 -05:00
..
acpi	ACPI: Enable bit 11 in _PDC to advertise hw coord	2009-02-07 00:41:14 -05:00
asm-arm
asm-frv
asm-generic
asm-h8300
asm-m32r
asm-mn10300
crypto	crypto: shash - Fix tfm destruction	2009-02-05 16:51:25 +11:00
drm	drm/i915: add fence register management to execbuf	2009-02-08 21:38:02 +10:00
keys
linux	jbd2: Avoid possible NULL dereference in jbd2_journal_begin_ordered_truncate()	2009-02-10 11:15:34 -05:00
math-emu
media	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6	2009-02-02 19:26:06 -08:00
mtd
net	net: don't use in_atomic() in gfp_any()	2009-02-12 16:43:17 -08:00
pcmcia
rdma
rxrpc
scsi
sound
trace
video	atyfb: fix CONFIG_ namespace violations	2009-02-05 12:56:48 -08:00
xen
Kbuild