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linux-stable/fs/xfs
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Dave Chinner 10616b806d xfs: fix _xfs_buf_find oops on blocks beyond the filesystem end 
When _xfs_buf_find is passed an out of range address, it will fail
to find a relevant struct xfs_perag and oops with a null
dereference. This can happen when trying to walk a filesystem with a
metadata inode that has a partially corrupted extent map (i.e. the
block number returned is corrupt, but is otherwise intact) and we
try to read from the corrupted block address.

In this case, just fail the lookup. If it is readahead being issued,
it will simply not be done, but if it is real read that fails we
will get an error being reported.  Ideally this case should result
in an EFSCORRUPTED error being reported, but we cannot return an
error through xfs_buf_read() or xfs_buf_get() so this lookup failure
may result in ENOMEM or EIO errors being reported instead.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
2013-01-24 11:06:41 -06:00
..
Kconfig xfs: add CRC infrastructure 2012-11-19 20:11:24 -06:00
kmem.c xfs: switch to proper __bitwise type for KM_... flags 2012-05-29 23:28:32 -04:00
kmem.h xfs: switch to proper __bitwise type for KM_... flags 2012-05-29 23:28:32 -04:00
Makefile xfs: remove xfs_flushinval_pages 2012-11-14 15:15:08 -06:00
mrlock.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
time.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
uuid.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
uuid.h xfs: add CRC infrastructure 2012-11-19 20:11:24 -06:00
xfs.h xfs: don't expect xfs headers to be in subdirectories 2011-08-12 13:57:55 -05:00
xfs_acl.c userns: Pass a userns parameter into posix_acl_to_xattr and posix_acl_from_xattr 2012-09-18 01:01:35 -07:00
xfs_acl.h xfs: Fix build breakage in xfs_iops.c when CONFIG_FS_POSIX_ACL is not set 2011-08-01 02:35:04 -04:00
xfs_ag.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_alloc.c xfs: don't zero structure members after a memset(0) 2013-01-03 16:00:07 -06:00
xfs_alloc.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_alloc_btree.c xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_alloc_btree.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_aops.c xfs: fix direct IO nested transaction deadlock. 2012-11-29 14:22:56 -06:00
xfs_aops.h Prefix IO_XX flags with XFS_IO_XX to avoid namespace colision. 2012-07-22 11:00:55 -05:00
xfs_attr.c xfs: add xfs_da_node verification 2012-11-15 21:34:55 -06:00
xfs_attr.h
xfs_attr_leaf.c xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_attr_leaf.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_attr_sf.h
xfs_bit.c
xfs_bit.h
xfs_bmap.c xfs: pull up stack_switch check into xfs_bmapi_write 2013-01-17 17:53:37 -06:00
xfs_bmap.h xfs: move allocation stack switch up to xfs_bmapi_allocate 2012-10-18 17:42:48 -05:00
xfs_bmap_btree.c xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_bmap_btree.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_btree.c xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_btree.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_buf.c xfs: fix _xfs_buf_find oops on blocks beyond the filesystem end 2013-01-24 11:06:41 -06:00
xfs_buf.h xfs: use b_maps[] for discontiguous buffers 2012-12-17 16:19:56 -06:00
xfs_buf_item.c xfs remove the XFS_TRANS_DEBUG routines 2012-12-17 16:29:00 -06:00
xfs_buf_item.h xfs remove the XFS_TRANS_DEBUG routines 2012-12-17 16:29:00 -06:00
xfs_cksum.h xfs: add CRC infrastructure 2012-11-19 20:11:24 -06:00
xfs_da_btree.c xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_da_btree.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_dfrag.c xfs: remove xfs_flushinval_pages 2012-11-14 15:15:08 -06:00
xfs_dfrag.h
xfs_dinode.h xfs: fix typo in comment of xfs_dinode_t. 2012-06-14 12:28:26 -05:00
xfs_dir2.c xfs: remove struct xfs_dabuf and infrastructure 2012-07-01 14:50:07 -05:00
xfs_dir2.h xfs: reshuffle dir2 headers 2011-07-13 13:43:48 +02:00
xfs_dir2_block.c xfs: recalculate leaf entry pointer after compacting a dir2 block 2013-01-13 14:36:17 -06:00
xfs_dir2_data.c xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_dir2_format.h xfs: cleanup struct xfs_dir2_free 2011-07-13 13:43:48 +02:00
xfs_dir2_leaf.c xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_dir2_node.c xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_dir2_priv.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_dir2_sf.c xfs: remove struct xfs_dabuf and infrastructure 2012-07-01 14:50:07 -05:00
xfs_discard.c xfs: check for possible overflow in xfs_ioc_trim 2012-08-23 14:48:44 -05:00
xfs_discard.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_dquot.c xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_dquot.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_dquot_item.c xfs: clean up xfs_bit.h includes 2012-05-14 16:21:00 -05:00
xfs_dquot_item.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_error.c xfs: move xfsagino_t to xfs_types.h 2012-05-14 16:20:54 -05:00
xfs_error.h xfs: kill support/debug.[ch] 2011-03-07 10:09:35 +11:00
xfs_export.c xfs: remove xfs_iget.c 2012-10-17 13:42:25 -05:00
xfs_export.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_extent_busy.c xfs: make xfs_extent_busy_trim not static 2012-05-14 16:21:04 -05:00
xfs_extent_busy.h xfs: make xfs_extent_busy_trim not static 2012-05-14 16:21:04 -05:00
xfs_extfree_item.c xfs: move xfsagino_t to xfs_types.h 2012-05-14 16:20:54 -05:00
xfs_extfree_item.h xfs: Pull EFI/EFD handling out from under the AIL lock 2010-12-20 11:59:49 +11:00
xfs_file.c xfs: byte range granularity for XFS_IOC_ZERO_RANGE 2012-11-29 14:21:46 -06:00
xfs_filestream.c xfs: rename allocation range fields in struct xfs_bmalloca 2011-10-11 21:15:06 -05:00
xfs_filestream.h
xfs_fs.h xfs: add minimum file size filtering to eofblocks scan 2012-11-08 15:32:29 -06:00
xfs_fsops.c xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_fsops.h xfs: ensure log covering transactions are synchronous 2011-01-11 20:28:17 -06:00
xfs_globals.c xfs: add background scanning to clear eofblocks inodes 2012-11-08 15:34:59 -06:00
xfs_ialloc.c xfs: don't zero structure members after a memset(0) 2013-01-03 16:00:07 -06:00
xfs_ialloc.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_ialloc_btree.c xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_ialloc_btree.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_icache.c xfs: add background scanning to clear eofblocks inodes 2012-11-08 15:34:59 -06:00
xfs_icache.h xfs: add background scanning to clear eofblocks inodes 2012-11-08 15:34:59 -06:00
xfs_inode.c xfs remove the XFS_TRANS_DEBUG routines 2012-12-17 16:29:00 -06:00
xfs_inode.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_inode_item.c xfs remove the XFS_TRANS_DEBUG routines 2012-12-17 16:29:00 -06:00
xfs_inode_item.h xfs remove the XFS_TRANS_DEBUG routines 2012-12-17 16:29:00 -06:00
xfs_inum.h xfs: move xfsagino_t to xfs_types.h 2012-05-14 16:20:54 -05:00
xfs_ioctl.c xfs: add inode id filtering to eofblocks scan 2012-11-08 15:29:14 -06:00
xfs_ioctl.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_ioctl32.c xfs: Convert to new freezing code 2012-07-31 09:45:48 +04:00
xfs_ioctl32.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_iomap.c xfs: add EOFBLOCKS inode tagging/untagging 2012-11-08 14:20:44 -06:00
xfs_iomap.h
xfs_iops.c xfs: remove xfs_flush_pages 2012-11-14 15:12:45 -06:00
xfs_iops.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_itable.c xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_itable.h
xfs_linux.h xfs: add CRC infrastructure 2012-11-19 20:11:24 -06:00
xfs_log.c xfs: fix fs/xfs/xfs_log.c:1740:39: error: 'B_TRUE' undeclared 2013-01-18 15:11:57 -06:00
xfs_log.h xfs: xfs_quiesce_attr() should quiesce the log like unmount 2012-10-17 13:39:14 -05:00
xfs_log_cil.c xfs: rename log structure to xlog 2012-06-21 14:21:11 -05:00
xfs_log_priv.h xfs: fix sparse reported log CRC endian issue 2012-12-03 12:10:59 -06:00
xfs_log_recover.c xfs: fix sparse reported log CRC endian issue 2012-12-03 12:10:59 -06:00
xfs_log_recover.h
xfs_message.c xfs: move xfsagino_t to xfs_types.h 2012-05-14 16:20:54 -05:00
xfs_message.h treewide: use __printf not __attribute__((format(printf,...))) 2011-10-31 17:30:54 -07:00
xfs_mount.c xfs: Do not return EFSCORRUPTED when filesystem probe finds no XFS magic 2013-01-16 17:33:53 -06:00
xfs_mount.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_mru_cache.c xfs: convert to alloc_workqueue() 2011-02-01 11:42:43 +01:00
xfs_mru_cache.h
xfs_qm.c xfs: fix stray dquot unlock when reclaiming dquots 2012-11-29 14:24:03 -06:00
xfs_qm.h xfs: remove the global xfs_Gqm structure 2012-03-14 12:06:32 -05:00
xfs_qm_bhv.c xfs: Remove boolean_t typedef completely. 2013-01-17 17:32:57 -06:00
xfs_qm_syscalls.c xfs: Remove boolean_t typedef completely. 2013-01-17 17:32:57 -06:00
xfs_quota.h Define new macro XFS_ALL_QUOTA_ACTIVE and simply some usage 2012-02-03 11:32:20 -06:00
xfs_quota_priv.h xfs: use per-filesystem radix trees for dquot lookup 2012-03-14 11:09:06 -05:00
xfs_quotaops.c userns: Convert qutoactl 2012-09-18 01:01:39 -07:00
xfs_rename.c xfs: move xfsagino_t to xfs_types.h 2012-05-14 16:20:54 -05:00
xfs_rtalloc.c xfs: uncached buffer reads need to return an error 2012-11-15 21:34:05 -06:00
xfs_rtalloc.h xfs: Remove the macro XFS_BUF_PTR 2011-07-25 15:03:13 -05:00
xfs_sb.h xfs: add CRC infrastructure 2012-11-19 20:11:24 -06:00
xfs_stats.c xfs: use common code for quota statistics 2012-03-14 11:09:06 -05:00
xfs_stats.h xfs: use common code for quota statistics 2012-03-14 11:09:06 -05:00
xfs_super.c fs/xfs remove obsolete simple_strto<foo> 2013-01-13 14:42:07 -06:00
xfs_super.h xfs: xfs_sync_data is redundant. 2012-10-17 12:01:25 -05:00
xfs_sysctl.c xfs: add background scanning to clear eofblocks inodes 2012-11-08 15:34:59 -06:00
xfs_sysctl.h xfs: add background scanning to clear eofblocks inodes 2012-11-08 15:34:59 -06:00
xfs_trace.c xfs: clean up xfs_bit.h includes 2012-05-14 16:21:00 -05:00
xfs_trace.h xfs: add more attribute tree trace points. 2012-11-13 14:47:00 -06:00
xfs_trans.c xfs: Convert to new freezing code 2012-07-31 09:45:48 +04:00
xfs_trans.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_trans_ail.c xfs remove the XFS_TRANS_DEBUG routines 2012-12-17 16:29:00 -06:00
xfs_trans_buf.c xfs: fix the multi-segment log buffer format 2012-12-17 16:28:14 -06:00
xfs_trans_dquot.c xfs: Remove boolean_t typedef completely. 2013-01-17 17:32:57 -06:00
xfs_trans_extfree.c xfs: move xfsagino_t to xfs_types.h 2012-05-14 16:20:54 -05:00
xfs_trans_inode.c xfs remove the XFS_TRANS_DEBUG routines 2012-12-17 16:29:00 -06:00
xfs_trans_priv.h xfs: re-enable xfsaild idle mode and fix associated races 2012-07-29 16:27:57 -05:00
xfs_trans_space.h
xfs_types.h xfs: Remove boolean_t typedef completely. 2013-01-17 17:32:57 -06:00
xfs_utils.c xfs: remove the alloc_done argument to xfs_dialloc 2012-07-29 16:00:31 -05:00
xfs_utils.h xfs: propagate umode_t 2012-01-03 22:55:00 -05:00
xfs_vnode.h xfs: remove remaining scraps of struct xfs_iomap 2012-03-15 13:40:16 -05:00
xfs_vnodeops.c xfs: Remove boolean_t typedef completely. 2013-01-17 17:32:57 -06:00
xfs_vnodeops.h xfs: byte range granularity for XFS_IOC_ZERO_RANGE 2012-11-29 14:21:46 -06:00
xfs_xattr.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00