Theodore Ts'o b5451f7b26 ext4: Fix potential inode allocation soft lockup in Orlov allocator ...

If the Orlov allocator is having trouble finding an appropriate block
group, the fallback code could loop forever, causing a soft lockup
warning in find_group_orlov():

BUG: soft lockup - CPU#0 stuck for 61s! [cp:11728]
     ...
Pid: 11728, comm: cp Not tainted (2.6.30-rc1-dirty #77) Lenovo          
EIP: 0060:[<c021650e>] EFLAGS: 00000246 CPU: 0
EIP is at ext4_get_group_desc+0x54/0x9d
    ...
Call Trace:
 [<c0218021>] find_group_orlov+0x2ee/0x334
 [<c0120a5f>] ? sched_clock+0x8/0xb
 [<c02188e3>] ext4_new_inode+0x2cf/0xb1a

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

2009-04-22 21:00:36 -04:00

..

acl.c

New helper - current_umask()

2009-03-31 23:00:26 -04:00

acl.h

ext4: Rename ext4dev to ext4

2008-10-10 20:02:48 -04:00

balloc.c

ext4: Use lowercase names of quota functions

2009-03-26 02:18:36 +01:00

bitmap.c

ext4: Change unsigned long to unsigned int

2008-11-05 00:14:04 -05:00

dir.c

ext4: New rec_len encoding for very large blocksizes

2009-02-14 23:01:36 -05:00

ext4_extents.h

ext4: Validate extent details only when read from the disk

2009-03-27 16:39:58 -04:00

ext4_i.h

ext4: New inode/block allocation algorithms for flex_bg filesystems

2009-03-12 12:18:34 -04:00

ext4_jbd2.c

ext4: Allow ext4 to run without a journal

2009-01-07 00:06:22 -05:00

ext4_jbd2.h

ext4: Remove "extents" mount option

2009-01-06 14:53:16 -05:00

ext4_sb.h

ext4: Add sysfs support

2009-03-31 09:10:09 -04:00

ext4.h

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2009-04-01 10:57:49 -07:00

extents.c

ext4: Make the extent validity check more paranoid

2009-04-22 20:52:25 -04:00

file.c

ext4: Fix discard of inode prealloc space with delayed allocation.

2009-03-27 22:36:43 -04:00

fsync.c

ext4: Add debugging markers that can be used by systemtap

2008-10-05 20:50:06 -04:00

group.h

ext4: Rename read_block_bitmap() to ext4_read_block_bitmap()

2008-07-11 19:27:31 -04:00

hash.c

ext4: Add support for non-native signed/unsigned htree hash algorithms

2008-10-28 13:21:44 -04:00

ialloc.c

ext4: Fix potential inode allocation soft lockup in Orlov allocator

2009-04-22 21:00:36 -04:00

inode.c

ext4: Fix big-endian problem in __ext4_check_blockref()

2009-04-07 18:46:47 -04:00

ioctl.c

ext4: add EXT4_IOC_ALLOC_DA_BLKS ioctl

2009-02-26 01:04:07 -05:00

Kconfig

trivial: fix typos/grammar errors in Kconfig texts

2009-03-30 15:22:01 +02:00

Makefile

ext4: Rename ext4dev to ext4

2008-10-10 20:02:48 -04:00

mballoc.c

ext4: fix locking typo in mballoc which could cause soft lockup hangs

2009-03-27 19:43:21 -04:00

mballoc.h

ext4: Rename pa_linear to pa_type

2009-03-27 17:16:58 -04:00

migrate.c

ext4: Fix NULL dereference in ext4_ext_migrate()'s error handling

2009-02-15 20:02:19 -05:00

namei.c

ext4: Use lowercase names of quota functions

2009-03-26 02:18:36 +01:00

namei.h

[PATCH] ext4: rename ext4 symbols to avoid duplication of ext3 symbols

2006-10-11 11:14:15 -07:00

resize.c

ext4: Use atomic_t's in struct flex_groups

2009-03-04 19:09:10 -05:00

super.c

ext4: check block device size on mount

2009-04-07 14:07:47 -04:00

symlink.c

ext4: Rename ext4dev to ext4

2008-10-10 20:02:48 -04:00

xattr_security.c

ext4: move headers out of include/linux

2008-04-29 18:13:32 -04:00

xattr_trusted.c

ext4: remove double definitions of xattr macros

2008-07-11 19:27:31 -04:00

xattr_user.c

ext4: remove double definitions of xattr macros

2008-07-11 19:27:31 -04:00

xattr.c

ext4: Use lowercase names of quota functions

2009-03-26 02:18:36 +01:00

xattr.h

ext4: Rename ext4dev to ext4

2008-10-10 20:02:48 -04:00