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(parent: c01e636) | patch
ext4: fix null handler of ioctls in no journal mode
authorPeng Tao <bergwolf@gmail.com>
Mon, 13 Jul 2009 13:30:17 +0000 (09:30 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Mon, 13 Jul 2009 13:30:17 +0000 (09:30 -0400)
commit6bba6badf1b442b7444d14fc58469db90d847299
tree3a52ddd6ae7663b0cdd52a9eab059711626ae491tree | snapshot
parentc01e6361617d631d8bb0f0df33bc12249a16b55ecommit | diff
ext4: fix null handler of ioctls in no journal mode

The EXT4_IOC_GROUP_ADD and EXT4_IOC_GROUP_EXTEND ioctls should not
flush the journal in no_journal mode.  Otherwise, running resize2fs on
a mounted no_journal partition triggers the following error messages:

BUG: unable to handle kernel NULL pointer dereference at 00000014
IP: [<c039d282>] _spin_lock+0x8/0x19
*pde = 00000000
Oops: 0002 [#1] SMP

Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
fs/ext4/ioctl.c diff | blob | history
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