Theodore Ts'o 7f93cff90f ext4: fix kernel oops if the journal superblock has a non-zero j_errno ... Commit 84061e0 fixed an accounting bug only to introduce the possibility of a kernel OOPS if the journal has a non-zero j_errno field indicating that the file system had detected a fs inconsistency. After the journal replay, if the journal superblock indicates that the file system has an error, this indication is transfered to the file system and then ext4_commit_super() is called to write this to the disk. But since the percpu counters are now initialized after the journal replay, the call to ext4_commit_super() will cause a kernel oops since it needs to use the percpu counters the ext4 superblock structure. The fix is to skip setting the ext4 free block and free inode fields if the percpu counter has not been set. Thanks to Ken Sumrall for reporting and analyzing the root causes of this bug. Addresses-Google-Bug: #3054080 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>		2010-10-27 21:30:13 -04:00
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acpi	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6	2010-09-07 16:00:17 -07:00
asm-generic	gpio: doc updates	2010-09-09 18:57:24 -07:00
crypto
drm	drm: Use a nondestructive mode for output detect when polling (v2)	2010-09-14 20:38:48 +10:00
keys
linux	ext4: fix kernel oops if the journal superblock has a non-zero j_errno	2010-10-27 21:30:13 -04:00
math-emu
media
mtd
net	tproxy: check for transparent flag in ip_route_newports	2010-09-27 15:03:33 -07:00
pcmcia
rdma
rxrpc
scsi
sound	ALSA: emu10k1 - delay the PCM interrupts (add pcm_irq_delay parameter)	2010-08-18 15:10:59 +02:00
trace	ext4: don't use ext4_allocation_contexts for tracing	2010-10-27 21:30:07 -04:00
video	include: replace unifdef-y with header-y	2010-08-14 22:26:51 +02:00
xen	xen: pvhvm: make it clearer that XEN_UNPLUG_* define bits in a bitfield	2010-08-23 12:01:35 +01:00
Kbuild