Darrick J. Wong b208c2f7ce btrfs: Fix crash due to not allocating integrity data for a bioset ... When btrfs creates a bioset, we must also allocate the integrity data pool. Otherwise btrfs will crash when it tries to submit a bio to a checksumming disk: BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 IP: [<ffffffff8111e28a>] mempool_alloc+0x4a/0x150 PGD 2305e4067 PUD 23063d067 PMD 0 Oops: 0000 [#1] PREEMPT SMP Modules linked in: btrfs scsi_debug xfs ext4 jbd2 ext3 jbd mbcache sch_fq_codel eeprom lpc_ich mfd_core nfsd exportfs auth_rpcgss af_packet raid6_pq xor zlib_deflate libcrc32c [last unloaded: scsi_debug] CPU: 1 PID: 4486 Comm: mount Not tainted 3.12.0-rc1-mcsum #2 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 task: ffff8802451c9720 ti: ffff880230698000 task.ti: ffff880230698000 RIP: 0010:[<ffffffff8111e28a>] [<ffffffff8111e28a>] mempool_alloc+0x4a/0x150 RSP: 0018:ffff880230699688 EFLAGS: 00010286 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 00000000005f8445 RDX: 0000000000000001 RSI: 0000000000000010 RDI: 0000000000000000 RBP: ffff8802306996f8 R08: 0000000000011200 R09: 0000000000000008 R10: 0000000000000020 R11: ffff88009d6e8000 R12: 0000000000011210 R13: 0000000000000030 R14: ffff8802306996b8 R15: ffff8802451c9720 FS: 00007f25b8a16800(0000) GS:ffff88024fc80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000018 CR3: 0000000230576000 CR4: 00000000000007e0 Stack: ffff8802451c9720 0000000000000002 ffffffff81a97100 0000000000281250 ffffffff81a96480 ffff88024fc99150 ffff880228d18200 0000000000000000 0000000000000000 0000000000000040 ffff880230e8c2e8 ffff8802459dc900 Call Trace: [<ffffffff811b2208>] bio_integrity_alloc+0x48/0x1b0 [<ffffffff811b26fc>] bio_integrity_prep+0xac/0x360 [<ffffffff8111e298>] ? mempool_alloc+0x58/0x150 [<ffffffffa03e8041>] ? alloc_extent_state+0x31/0x110 [btrfs] [<ffffffff81241579>] blk_queue_bio+0x1c9/0x460 [<ffffffff8123e58a>] generic_make_request+0xca/0x100 [<ffffffff8123e639>] submit_bio+0x79/0x160 [<ffffffffa03f865e>] btrfs_map_bio+0x48e/0x5b0 [btrfs] [<ffffffffa03c821a>] btree_submit_bio_hook+0xda/0x110 [btrfs] [<ffffffffa03e7eba>] submit_one_bio+0x6a/0xa0 [btrfs] [<ffffffffa03ef450>] read_extent_buffer_pages+0x250/0x310 [btrfs] [<ffffffff8125eef6>] ? __radix_tree_preload+0x66/0xf0 [<ffffffff8125f1c5>] ? radix_tree_insert+0x95/0x260 [<ffffffffa03c66f6>] btree_read_extent_buffer_pages.constprop.128+0xb6/0x120 [btrfs] [<ffffffffa03c8c1a>] read_tree_block+0x3a/0x60 [btrfs] [<ffffffffa03caefd>] open_ctree+0x139d/0x2030 [btrfs] [<ffffffffa03a282a>] btrfs_mount+0x53a/0x7d0 [btrfs] [<ffffffff8113ab0b>] ? pcpu_alloc+0x8eb/0x9f0 [<ffffffff81167305>] ? __kmalloc_track_caller+0x35/0x1e0 [<ffffffff81176ba0>] mount_fs+0x20/0xd0 [<ffffffff81191096>] vfs_kern_mount+0x76/0x120 [<ffffffff81193320>] do_mount+0x200/0xa40 [<ffffffff81135cdb>] ? strndup_user+0x5b/0x80 [<ffffffff81193bf0>] SyS_mount+0x90/0xe0 [<ffffffff8156d31d>] system_call_fastpath+0x1a/0x1f Code: 4c 8d 75 a8 4c 89 6d e8 45 89 e0 4c 8d 6f 30 48 89 5d d8 41 83 e0 af 48 89 fb 49 83 c6 18 4c 89 7d f8 65 4c 8b 3c 25 c0 b8 00 00 <48> 8b 73 18 44 89 c7 44 89 45 98 ff 53 20 48 85 c0 48 89 c2 74 RIP [<ffffffff8111e28a>] mempool_alloc+0x4a/0x150 RSP <ffff880230699688> CR2: 0000000000000018 ---[ end trace 7a96042017ed21e2 ]--- Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>		2013-10-05 10:52:10 -04:00
..
tests	Btrfs: separate out tests into their own directory	2013-09-01 08:15:38 -04:00
acl.c
async-thread.c	Btrfs: eliminate races in worker stopping code	2013-10-04 16:02:13 -04:00
async-thread.h	Btrfs: eliminate races in worker stopping code	2013-10-04 16:02:13 -04:00
backref.c	Btrfs: allocate prelim_ref with a slab allocater	2013-09-01 08:16:27 -04:00
backref.h	Btrfs: allocate prelim_ref with a slab allocater	2013-09-01 08:16:27 -04:00
btrfs_inode.h	Btrfs: check roots last log commit when checking if an inode has been logged	2013-09-21 11:05:24 -04:00
check-integrity.c	Btrfs: Use %z to format size_t	2013-09-01 08:16:19 -04:00
check-integrity.h
compat.h
compression.c	Btrfs: Remove superfluous casts from u64 to unsigned long long	2013-09-01 08:16:08 -04:00
compression.h
ctree.c	Btrfs: fixup error handling in btrfs_reloc_cow	2013-09-21 10:58:54 -04:00
ctree.h	Btrfs: remove space_info->reservation_progress	2013-09-21 11:05:27 -04:00
delayed-inode.c	Btrfs: fix printing of non NULL terminated string	2013-09-01 08:16:20 -04:00
delayed-inode.h	[readdir] convert btrfs	2013-06-29 12:57:00 +04:00
delayed-ref.c	Btrfs: get rid of sparse warnings	2013-09-01 08:15:50 -04:00
delayed-ref.h
dev-replace.c	Merge branch 'for-linus' into for-linus-3.12	2013-10-05 10:51:32 -04:00
dev-replace.h
dir-item.c
disk-io.c	Btrfs: add the missing mutex unlock in write_all_supers()	2013-09-21 11:05:28 -04:00
disk-io.h	Btrfs: introduce grab/put functions for the root of the fs/file tree	2013-06-14 11:29:38 -04:00
export.c	Btrfs: cleanup: don't check the same thing twice	2013-06-14 11:29:30 -04:00
export.h
extent_io.c	btrfs: Fix crash due to not allocating integrity data for a bioset	2013-10-05 10:52:10 -04:00
extent_io.h	btrfs: mark some local function as 'static'	2013-09-01 08:15:51 -04:00
extent_map.c
extent_map.h
extent-tree.c	Btrfs: remove space_info->reservation_progress	2013-09-21 11:05:27 -04:00
file-item.c	Btrfs: Remove superfluous casts from u64 to unsigned long long	2013-09-01 08:16:08 -04:00
file.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2013-09-22 14:58:49 -07:00
free-space-cache.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2013-09-22 14:58:49 -07:00
free-space-cache.h	Btrfs: allocate the free space by the existed max extent size when ENOSPC	2013-09-21 11:05:23 -04:00
hash.h
inode-item.c
inode-map.c
inode-map.h
inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2013-09-22 14:58:49 -07:00
ioctl.c	btrfs: change extent-same to copy entire argument struct	2013-09-21 11:05:31 -04:00
Kconfig	Btrfs: add support for asserts	2013-09-01 08:16:32 -04:00
locking.c
locking.h
lzo.c	Btrfs: return -1 when lzo compression makes data bigger	2013-09-01 07:57:19 -04:00
Makefile	Btrfs: introduce a tree for items that map UUIDs to something	2013-09-01 08:15:52 -04:00
math.h
ordered-data.c	Btrfs: kill delay_iput arg to the wait_ordered functions	2013-09-21 11:05:27 -04:00
ordered-data.h	Btrfs: kill delay_iput arg to the wait_ordered functions	2013-09-21 11:05:27 -04:00
orphan.c
print-tree.c	Btrfs: Remove superfluous casts from u64 to unsigned long long	2013-09-01 08:16:08 -04:00
print-tree.h
qgroup.c	Btrfs: Remove superfluous casts from u64 to unsigned long long	2013-09-01 08:16:08 -04:00
raid56.c	Btrfs, raid56: fix memory leak when allocating pages for p/q stripes failed	2013-09-01 08:04:27 -04:00
raid56.h
rcu-string.h
reada.c
relocation.c	Btrfs: kill delay_iput arg to the wait_ordered functions	2013-09-21 11:05:27 -04:00
root-tree.c	Btrfs: Remove superfluous casts from u64 to unsigned long long	2013-09-01 08:16:08 -04:00
scrub.c	Btrfs: improve replacing nocow extents	2013-09-21 11:05:26 -04:00
send.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2013-09-12 09:58:51 -07:00
send.h
struct-funcs.c
super.c	Btrfs: create the uuid tree on remount rw	2013-09-21 11:50:43 -04:00
sysfs.c
transaction.c	Btrfs: fix transid verify errors when recovering log tree	2013-10-04 16:02:09 -04:00
transaction.h	btrfs: mark some local function as 'static'	2013-09-01 08:15:51 -04:00
tree-defrag.c
tree-log.c	Btrfs: drop dir i_size when adding new names on replay	2013-09-21 11:05:25 -04:00
tree-log.h
ulist.c	Btrfs: fix crash regarding to ulist_add_merge	2013-07-02 11:50:59 -04:00
ulist.h
uuid-tree.c	Btrfs: check UUID tree during mount if required	2013-09-01 08:15:58 -04:00
volumes.c	Merge branch 'for-linus' into for-linus-3.12	2013-10-05 10:51:32 -04:00
volumes.h	Btrfs: add btrfs_alloc_device and switch to it	2013-09-01 08:16:04 -04:00
xattr.c
xattr.h
zlib.c