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28e211700a
kernel-ark/fs/xfs
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Christoph Hellwig 28e211700a xfs: fix getbmap vs mmap deadlock 
xfs_getbmap (or rather the formatters called by it) copy out the getbmap
structures under the ilock, which can deadlock against mmap.  This has
been reported via bugzilla a while ago (#717) and has recently also
shown up via lockdep.

So allocate a temporary buffer to format the kernel getbmap structures
into and then copy them out after dropping the locks.

A little problem with this is that we limit the number of extents we
can copy out by the maximum allocation size, but I see no real way
around that.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
Reviewed-by: Felix Blyakher <felixb@sgi.com>
Signed-off-by: Felix Blyakher <felixb@sgi.com>
2009-04-30 00:29:02 -05:00
..
linux-2.6 Merge branch 'master' into for-linus 2009-04-09 14:12:07 -05:00
quota xfs: kill mutex_t typedef 2009-03-29 09:51:00 +02:00
support xfs: cleanup uuid handling 2009-03-30 10:21:31 +02:00
Kconfig xfs: fix dentry aliasing issues in open_by_handle 2009-01-19 14:43:18 +11:00
Makefile xfs: get rid of indirections in the quotaops implementation 2009-02-09 08:47:34 +01:00
xfs_acl.c
xfs_acl.h Revert "xfs: increase the maximum number of supported ACL entries" 2009-03-31 00:23:37 -05:00
xfs_ag.h xfs: remove uchar_t/ushort_t/uint_t/ulong_t types 2009-02-09 08:37:39 +01:00
xfs_alloc_btree.c [XFS] Remove the rest of the macro-to-function indirections. 2009-01-19 14:45:55 +11:00
xfs_alloc_btree.h
xfs_alloc.c xfs: factor out code to find the longest free extent in the AG 2009-03-16 08:29:46 +01:00
xfs_alloc.h xfs: factor out code to find the longest free extent in the AG 2009-03-16 08:29:46 +01:00
xfs_arch.h
xfs_attr_leaf.c xfs: remove m_attroffset 2009-03-29 19:26:46 +02:00
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_attr.c [XFS] Remove the rest of the macro-to-function indirections. 2009-01-19 14:45:55 +11:00
xfs_attr.h
xfs_bit.c
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 the rest of the macro-to-function indirections. 2009-01-19 14:45:55 +11:00
xfs_bmap_btree.h [XFS] Remove the rest of the macro-to-function indirections. 2009-01-19 14:45:55 +11:00
xfs_bmap.c xfs: fix getbmap vs mmap deadlock 2009-04-30 00:29:02 -05:00
xfs_bmap.h xfs: remove m_attroffset 2009-03-29 19:26:46 +02:00
xfs_btree_trace.c
xfs_btree_trace.h
xfs_btree.c xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_btree.h xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_buf_item.c
xfs_buf_item.h
xfs_da_btree.c xfs: remove uchar_t/ushort_t/uint_t/ulong_t types 2009-02-09 08:37:39 +01:00
xfs_da_btree.h xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_dfrag.c xfs: reject swapext ioctl on swapfiles 2009-02-12 19:56:00 +01:00
xfs_dfrag.h
xfs_dinode.h xfs: remove m_litino 2009-03-29 09:51:14 +02:00
xfs_dir2_block.c xfs: kill ino64 mount option 2009-03-29 09:51:08 +02:00
xfs_dir2_block.h
xfs_dir2_data.c
xfs_dir2_data.h xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_dir2_leaf.c xfs: kill ino64 mount option 2009-03-29 09:51:08 +02:00
xfs_dir2_leaf.h
xfs_dir2_node.c xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_dir2_node.h
xfs_dir2_sf.c xfs: kill ino64 mount option 2009-03-29 09:51:08 +02:00
xfs_dir2_sf.h
xfs_dir2_trace.c
xfs_dir2_trace.h
xfs_dir2.c xfs: move declaration to header file 2009-03-06 17:20:15 -06:00
xfs_dir2.h
xfs_dmapi.h
xfs_dmops.c
xfs_error.c
xfs_error.h
xfs_extfree_item.c
xfs_extfree_item.h [XFS] remove always-true #ifndef HAVE_FORMAT32 tests 2009-01-22 14:07:31 +11:00
xfs_filestream.c xfs: factor out code to find the longest free extent in the AG 2009-03-16 08:29:46 +01:00
xfs_filestream.h
xfs_fs.h filesystem freeze: remove XFS specific ioctl interfaces for freeze feature 2009-01-09 16:54:42 -08:00
xfs_fsops.c xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_fsops.h filesystem freeze: add error handling of write_super_lockfs/unlockfs 2009-01-09 16:54:42 -08:00
xfs_ialloc_btree.c xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_ialloc_btree.h xfs: remove superflous inobt macros 2009-02-09 08:37:14 +01:00
xfs_ialloc.c xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_ialloc.h [XFS] Remove the rest of the macro-to-function indirections. 2009-01-19 14:45:55 +11:00
xfs_iget.c xfs: fix double free of inode 2009-04-06 18:40:17 +02:00
xfs_inode_item.c
xfs_inode_item.h [XFS] remove always-true #ifndef HAVE_FORMAT32 tests 2009-01-22 14:07:31 +11:00
xfs_inode.c xfs_file_last_byte() needs to acquire ilock 2009-04-30 00:25:25 -05:00
xfs_inode.h xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_inum.h
xfs_iomap.c xfs: remove xfs_flush_space 2009-04-06 18:49:12 +02:00
xfs_iomap.h xfs: remove xfs_flush_space 2009-04-06 18:49:12 +02:00
xfs_itable.c xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_itable.h
xfs_log_priv.h xfs: cleanup xlog_bread 2009-03-16 08:24:13 +01:00
xfs_log_recover.c xfs: cleanup xlog_bread 2009-03-16 08:24:13 +01:00
xfs_log_recover.h
xfs_log.c xfs: inform the xfsaild of the push target before sleeping 2009-04-06 18:42:59 +02:00
xfs_log.h xfs: cleanup log unmount handling 2009-03-16 08:19:29 +01:00
xfs_mount.c xfs: add more checks to superblock validation 2009-04-30 00:26:14 -05:00
xfs_mount.h xfs: use xfs_sync_inodes() for device flushing 2009-04-06 18:44:54 +02:00
xfs_mru_cache.c
xfs_mru_cache.h
xfs_qmops.c xfs: get rid of indirections in the quotaops implementation 2009-02-09 08:47:34 +01:00
xfs_quota.h xfs: get rid of indirections in the quotaops implementation 2009-02-09 08:47:34 +01:00
xfs_refcache.h
xfs_rename.c [XFS] Remove the rest of the macro-to-function indirections. 2009-01-19 14:45:55 +11:00
xfs_rtalloc.c xfs: make sure to free the real-time inodes in the mount error path 2009-02-04 09:33:58 +01:00
xfs_rtalloc.h xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_rw.c
xfs_rw.h [XFS] Remove the rest of the macro-to-function indirections. 2009-01-19 14:45:55 +11:00
xfs_sb.h [XFS] Remove the rest of the macro-to-function indirections. 2009-01-19 14:45:55 +11:00
xfs_trans_ail.c xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_trans_buf.c
xfs_trans_extfree.c
xfs_trans_inode.c
xfs_trans_item.c xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_trans_priv.h
xfs_trans_space.h xfs: remove superflous inobt macros 2009-02-09 08:37:14 +01:00
xfs_trans.c
xfs_trans.h xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_types.h xfs: remove uchar_t/ushort_t/uint_t/ulong_t types 2009-02-09 08:37:39 +01:00
xfs_utils.c xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_utils.h
xfs_vnodeops.c xfs: flush delayed allcoation blocks on ENOSPC in create 2009-04-06 18:48:30 +02:00
xfs_vnodeops.h xfs: merge xfs_mkdir into xfs_create 2009-02-09 08:38:02 +01:00
xfs.h