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7401aafd50
linux/fs/xfs
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Dave Chinner 7401aafd50 xfs: xfs_trans_read_buf() should return an error on failure 
When inside a transaction and we fail to read a buffer,
xfs_trans_read_buf returns a null buffer pointer and no error.
xfs_do_da_buf() checks the error return, but not the buffer, and as
a result this read failure condition causes a panic when it attempts
to dereference the non-existant buffer.

Make xfs_trans_read_buf() return the same error for this situation
regardless of whether it is in a transaction or not. This means
every caller does not need to check both the error return and the
buffer before proceeding to use the buffer.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Alex Elder <aelder@sgi.com>
2011-03-26 09:14:44 +11:00
..
linux-2.6 xfs: introduce inode cluster buffer trylocks for xfs_iflush 2011-03-26 09:13:55 +11:00
quota xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
support xfs: kill support/debug.[ch] 2011-03-07 10:09:35 +11:00
Kconfig quota: Make QUOTACTL config be selected by its users 2010-10-05 12:16:37 +02:00
Makefile xfs: kill support/debug.[ch] 2011-03-07 10:09:35 +11:00
xfs_acl.h fs: provide rcu-walk aware permission i_ops 2011-01-07 17:50:29 +11:00
xfs_ag.h xfs: convert pag_ici_lock to a spin lock 2010-12-16 17:08:41 +11:00
xfs_alloc_btree.c xfs: remove the ->kill_root btree operation 2010-10-18 15:07:38 -05:00
xfs_alloc_btree.h [XFS] Always use struct xfs_btree_block instead of short / longform 2008-10-30 17:14:34 +11:00
xfs_alloc.c xfs: factor agf counter updates into a helper 2011-03-09 08:23:47 -06:00
xfs_alloc.h xfs: limit extent length for allocation to AG size 2011-01-28 09:05:35 -06:00
xfs_arch.h xfs: use generic Posix ACL code 2009-06-10 17:07:47 +02:00
xfs_attr_leaf.c xfs: use KM_NOFS for allocations during attribute list operations 2010-12-23 11:57:37 +11:00
xfs_attr_leaf.h [XFS] Remove macro-to-function indirections in attr code 2009-01-09 15:46:44 +11:00
xfs_attr_sf.h xfs: convert attr to use unsigned names 2010-01-20 10:47:48 +11:00
xfs_attr.c xfs: remove xfs_buf wrappers 2010-10-18 15:08:07 -05:00
xfs_attr.h xfs: convert attr to use unsigned names 2010-01-20 10:47:48 +11:00
xfs_bit.c [XFS] Use the generic bitops rather than implementing them ourselves. 2008-08-13 15:41:12 +10:00
xfs_bit.h [XFS] Remove macro-to-function indirections in the mask code 2009-01-09 15:53:54 +11:00
xfs_bmap_btree.c xfs: remove unneeded #include statements 2010-07-26 13:16:33 -05:00
xfs_bmap_btree.h xfs: make several more functions static 2010-01-15 15:31:38 -06:00
xfs_bmap.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_bmap.h xfs: fix failed write truncation handling. 2010-12-01 07:40:19 -06:00
xfs_btree_trace.c [XFS] make btree tracing generic 2008-10-30 16:58:50 +11:00
xfs_btree_trace.h xfs: event tracing support 2009-12-14 23:08:16 -06:00
xfs_btree.c xfs: connect up buffer reclaim priority hooks 2010-12-02 16:31:13 +11:00
xfs_btree.h xfs: remove the ->kill_root btree operation 2010-10-18 15:07:38 -05:00
xfs_buf_item.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_buf_item.h xfs: use struct list_head for the buf cancel table 2010-12-16 16:05:22 -06:00
xfs_da_btree.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_da_btree.h xfs: convert dirnameops to unsigned char names 2010-01-20 10:47:17 +11:00
xfs_dfrag.c xfs: convert xfs_fs_cmn_err to new error logging API 2011-03-07 10:05:35 +11:00
xfs_dfrag.h xfs: clean up inconsistent variable naming in xfs_swap_extent 2010-01-15 15:31:23 -06:00
xfs_dinode.h xfs: Extend project quotas to support 32bit project ids 2010-10-18 15:08:08 -05:00
xfs_dir2_block.c xfs: fix gcc 4.6 set but not read and unused statement warnings 2010-07-26 13:16:51 -05:00
xfs_dir2_block.h
xfs_dir2_data.c xfs: remove unneeded #include statements 2010-07-26 13:16:33 -05:00
xfs_dir2_data.h xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_dir2_leaf.c xfs: remove xfs_buf wrappers 2010-10-18 15:08:07 -05:00
xfs_dir2_leaf.h
xfs_dir2_node.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_dir2_node.h xfs: make several more functions static 2010-01-15 15:31:38 -06:00
xfs_dir2_sf.c xfs: remove unneeded #include statements 2010-07-26 13:16:33 -05:00
xfs_dir2_sf.h [XFS] kill xfs_dinode_core_t 2008-12-01 11:37:35 +11:00
xfs_dir2.c xfs: convert xfs_fs_cmn_err to new error logging API 2011-03-07 10:05:35 +11:00
xfs_dir2.h xfs: make xfs_dir_cilookup_result use unsigned char 2010-01-20 10:47:25 +11:00
xfs_error.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_error.h xfs: kill support/debug.[ch] 2011-03-07 10:09:35 +11:00
xfs_extfree_item.c xfs: fix efi item leak on forced shutdown 2011-01-28 09:01:33 -06:00
xfs_extfree_item.h xfs: Pull EFI/EFD handling out from under the AIL lock 2010-12-20 11:59:49 +11:00
xfs_filestream.c xfs: tell lockdep about parent iolock usage in filestreams 2010-11-10 12:00:48 -06:00
xfs_filestream.h xfs: clean up filestreams helpers 2010-07-26 13:16:51 -05:00
xfs_fs.h xfs: Extend project quotas to support 32bit project ids 2010-10-18 15:08:08 -05:00
xfs_fsops.c xfs: convert xfs_fs_cmn_err to new error logging API 2011-03-07 10:05:35 +11:00
xfs_fsops.h xfs: ensure log covering transactions are synchronous 2011-01-11 20:28:17 -06:00
xfs_ialloc_btree.c xfs: remove the ->kill_root btree operation 2010-10-18 15:07:38 -05:00
xfs_ialloc_btree.h xfs: remove superflous inobt macros 2009-02-09 08:37:14 +01:00
xfs_ialloc.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_ialloc.h xfs: rationalize xfs_inobt_lookup* 2009-09-01 12:45:39 -05:00
xfs_iget.c Merge branch 'master' into for-linus-merged 2011-01-10 21:35:55 -06:00
xfs_inode_item.c xfs: introduce inode cluster buffer trylocks for xfs_iflush 2011-03-26 09:13:55 +11:00
xfs_inode_item.h xfs: simplify inode to transaction joining 2010-07-26 13:16:36 -05:00
xfs_inode.c xfs: introduce inode cluster buffer trylocks for xfs_iflush 2011-03-26 09:13:55 +11:00
xfs_inode.h xfs: add lockdep annotations for the rt inodes 2011-02-07 13:29:18 -06:00
xfs_inum.h xfs: remove XFS_INO64_OFFSET 2009-08-31 14:46:22 -05:00
xfs_iomap.c xfs: rename xfs_cmn_err_fsblock_zero() 2011-03-07 10:06:35 +11:00
xfs_iomap.h xfs: kill xfs_iomap 2010-12-16 16:05:51 -06:00
xfs_itable.c xfs: Extend project quotas to support 32bit project ids 2010-10-18 15:08:08 -05:00
xfs_itable.h xfs: remove block number from inode lookup code 2010-06-24 11:35:17 +10:00
xfs_log_cil.c xfs: handle CIl transaction commit failures correctly 2011-01-28 09:05:36 -06:00
xfs_log_priv.h xfs: Convert xlog_warn to new logging interface 2011-03-07 10:01:35 +11:00
xfs_log_recover.c xfs: Convert xlog_warn to new logging interface 2011-03-07 10:01:35 +11:00
xfs_log_recover.h xfs: Clean up XFS_BLI_* flag namespace 2010-05-24 10:33:39 -05:00
xfs_log.c xfs: Convert xlog_warn to new logging interface 2011-03-07 10:01:35 +11:00
xfs_log.h xfs: handle CIl transaction commit failures correctly 2011-01-28 09:05:36 -06:00
xfs_mount.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_mount.h xfs: dynamic speculative EOF preallocation 2011-01-04 11:35:03 +11:00
xfs_mru_cache.c workqueue: convert cancel_rearming_delayed_work[queue]() users to cancel_delayed_work_sync() 2010-12-15 10:56:11 +01:00
xfs_mru_cache.h xfs: Kill filestreams cache flush 2010-01-15 15:34:22 -06:00
xfs_quota.h xfs: Convert xlog_warn to new logging interface 2011-03-07 10:01:35 +11:00
xfs_rename.c xfs: log timestamp changes to the source inode in rename 2010-12-09 17:07:02 -06:00
xfs_rtalloc.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_rtalloc.h xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_rw.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_rw.h xfs: only clear the suid bit once in xfs_write 2010-02-12 13:43:57 -06:00
xfs_sb.h xfs: Extend project quotas to support 32bit project ids 2010-10-18 15:08:08 -05:00
xfs_trans_ail.c xfs: convert xfs_cmn_err to xfs_alert_tag 2011-03-07 10:02:35 +11:00
xfs_trans_buf.c xfs: xfs_trans_read_buf() should return an error on failure 2011-03-26 09:14:44 +11:00
xfs_trans_extfree.c xfs: Pull EFI/EFD handling out from under the AIL lock 2010-12-20 11:59:49 +11:00
xfs_trans_inode.c xfs: more sensible inode refcounting for ialloc 2011-02-22 20:32:28 -06:00
xfs_trans_priv.h xfs: use AIL bulk delete function to implement single delete 2010-12-20 12:36:15 +11:00
xfs_trans_space.h xfs: remove superflous inobt macros 2009-02-09 08:37:14 +01:00
xfs_trans.c xfs: handle CIl transaction commit failures correctly 2011-01-28 09:05:36 -06:00
xfs_trans.h xfs: more sensible inode refcounting for ialloc 2011-02-22 20:32:28 -06:00
xfs_types.h xfs: Extend project quotas to support 32bit project ids 2010-10-18 15:08:08 -05:00
xfs_utils.c xfs: remove xfs_cred.h 2010-10-18 15:08:06 -05:00
xfs_utils.h xfs: remove xfs_cred.h 2010-10-18 15:08:06 -05:00
xfs_vnodeops.c xfs: preallocation transactions do not need to be synchronous 2011-03-26 09:13:08 +11:00
xfs_vnodeops.h xfs: preallocation transactions do not need to be synchronous 2011-03-26 09:13:08 +11:00
xfs.h xfs: event tracing support 2009-12-14 23:08:16 -06:00