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David Howells 9e2b2dc413 CRED: Introduce credential access wrappers 
The patches that are intended to introduce copy-on-write credentials for 2.6.28
require abstraction of access to some fields of the task structure,
particularly for the case of one task accessing another's credentials where RCU
will have to be observed.

Introduced here are trivial no-op versions of the desired accessors for current
and other tasks so that other subsystems can start to be converted over more
easily.

Wrappers are introduced into a new header (linux/cred.h) for UID/GID,
EUID/EGID, SUID/SGID, FSUID/FSGID, cap_effective and current's subscribed
user_struct.  These wrappers are macros because the ordering between header
files mitigates against making them inline functions.

linux/cred.h is #included from linux/sched.h.

Further, XFS is modified such that it no longer defines and uses parameterised
versions of current_fs[ug]id(), thus getting rid of the namespace collision
otherwise incurred.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
 		2008-08-14 09:35:23 +10:00
..
linux-2.6 CRED: Introduce credential access wrappers 2008-08-14 09:35:23 +10:00
quota [XFS] Use KM_NOFS for debug trace buffers 2008-08-13 16:51:57 +10:00
support
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Kconfig
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Makefile
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xfs.h
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xfs_acl.c [XFS] kill bhv_vnode_t 2008-08-13 16:22:40 +10:00
xfs_acl.h [XFS] kill bhv_vnode_t 2008-08-13 16:22:40 +10:00
xfs_ag.h
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xfs_alloc.c
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xfs_alloc.h
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xfs_alloc_btree.c
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xfs_alloc_btree.h
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xfs_arch.h [XFS] remove INT_GET and friends 2008-08-13 16:07:53 +10:00
xfs_attr.c [XFS] Move xfs_attr_rolltrans to xfs_trans_roll 2008-08-13 16:05:49 +10:00
xfs_attr.h [XFS] Move attr log alloc size calculator to another function. 2008-08-13 16:03:35 +10:00
xfs_attr_leaf.c [XFS] Move xfs_attr_rolltrans to xfs_trans_roll 2008-08-13 16:05:49 +10:00
xfs_attr_leaf.h [XFS] Move xfs_attr_rolltrans to xfs_trans_roll 2008-08-13 16:05:49 +10:00
xfs_attr_sf.h
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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] Use the generic bitops rather than implementing them ourselves. 2008-08-13 15:41:12 +10:00
xfs_bmap.c [XFS] Make xfs_bmap_*_count_leaves void. 2008-08-13 16:52:25 +10:00
xfs_bmap.h
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xfs_bmap_btree.c
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xfs_bmap_btree.h
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xfs_btree.c [XFS] Use the same btree_cur union member for alloc and inobt trees. 2008-08-13 16:25:27 +10:00
xfs_btree.h [XFS] Use the same btree_cur union member for alloc and inobt trees. 2008-08-13 16:25:27 +10:00
xfs_buf_item.c [XFS] Use KM_NOFS for debug trace buffers 2008-08-13 16:51:57 +10:00
xfs_buf_item.h
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xfs_clnt.h
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xfs_da_btree.c
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xfs_da_btree.h
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xfs_dfrag.c [XFS] remove some easy bhv_vnode_t instances 2008-08-13 16:22:09 +10:00
xfs_dfrag.h
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xfs_dinode.h
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xfs_dir2.c
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xfs_dir2.h
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xfs_dir2_block.c
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xfs_dir2_block.h
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xfs_dir2_data.c
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xfs_dir2_data.h
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xfs_dir2_leaf.c
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xfs_dir2_leaf.h
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xfs_dir2_node.c
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xfs_dir2_node.h
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xfs_dir2_sf.c
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xfs_dir2_sf.h
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xfs_dir2_trace.c
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xfs_dir2_trace.h
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xfs_dmapi.h
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xfs_dmops.c
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xfs_error.c [XFS] kill INDUCE_IO_ERROR 2008-08-13 16:17:37 +10:00
xfs_error.h [XFS] kill INDUCE_IO_ERROR 2008-08-13 16:17:37 +10:00
xfs_extfree_item.c
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xfs_extfree_item.h
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xfs_filestream.c [XFS] Use KM_NOFS for debug trace buffers 2008-08-13 16:51:57 +10:00
xfs_filestream.h
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xfs_fs.h
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xfs_fsops.c
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xfs_fsops.h
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xfs_ialloc.c
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xfs_ialloc.h
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xfs_ialloc_btree.c [XFS] Use the same btree_cur union member for alloc and inobt trees. 2008-08-13 16:25:27 +10:00
xfs_ialloc_btree.h
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xfs_iget.c [XFS] replace inode flush semaphore with a completion 2008-08-13 16:41:16 +10:00
xfs_imap.h
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xfs_inode.c CRED: Introduce credential access wrappers 2008-08-14 09:35:23 +10:00
xfs_inode.h [XFS] update timestamp in xfs_ialloc manually 2008-08-13 16:44:15 +10:00
xfs_inode_item.c [XFS] replace inode flush semaphore with a completion 2008-08-13 16:41:16 +10:00
xfs_inode_item.h
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xfs_inum.h
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xfs_iomap.c
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xfs_iomap.h
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xfs_itable.c [XFS] remove some easy bhv_vnode_t instances 2008-08-13 16:22:09 +10:00
xfs_itable.h
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xfs_log.c [XFS] Fix use after free in xfs_log_done(). 2008-08-13 16:52:50 +10:00
xfs_log.h [XFS] cleanup xfs_mountfs 2008-08-13 16:49:32 +10:00
xfs_log_priv.h [XFS] cleanup xfs_mountfs 2008-08-13 16:49:32 +10:00
xfs_log_recover.c [XFS] cleanup xfs_mountfs 2008-08-13 16:49:32 +10:00
xfs_log_recover.h
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xfs_mount.c [XFS] use KM_MAYFAIL in xfs_mountfs 2008-08-13 16:51:29 +10:00
xfs_mount.h [XFS] xfs_unmountfs should return void 2008-08-13 16:49:57 +10:00
xfs_mru_cache.c
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xfs_mru_cache.h
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xfs_qmops.c
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xfs_quota.h
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xfs_refcache.h
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xfs_rename.c
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xfs_rtalloc.c [XFS] Use the generic bitops rather than implementing them ourselves. 2008-08-13 15:41:12 +10:00
xfs_rtalloc.h
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xfs_rw.c [XFS] replace the XFS buf iodone semaphore with a completion 2008-08-13 16:36:11 +10:00
xfs_rw.h
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xfs_sb.h
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xfs_trans.c [XFS] remove shouting-indirection macros from xfs_trans.h 2008-08-13 16:10:52 +10:00
xfs_trans.h [XFS] remove shouting-indirection macros from xfs_trans.h 2008-08-13 16:10:52 +10:00
xfs_trans_ail.c
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xfs_trans_buf.c [XFS] remove shouting-indirection macros from xfs_trans.h 2008-08-13 16:10:52 +10:00
xfs_trans_extfree.c
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xfs_trans_inode.c
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xfs_trans_item.c [XFS] remove shouting-indirection macros from xfs_trans.h 2008-08-13 16:10:52 +10:00
xfs_trans_priv.h
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xfs_trans_space.h
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xfs_types.h
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xfs_utils.c [XFS] Avoid directly referencing the VFS inode. 2008-08-13 15:45:15 +10:00
xfs_utils.h [XFS] implement IHOLD/IRELE directly 2008-08-13 16:13:45 +10:00
xfs_vfsops.c [XFS] kill bhv_vnode_t 2008-08-13 16:22:40 +10:00
xfs_vfsops.h
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xfs_vnodeops.c CRED: Introduce credential access wrappers 2008-08-14 09:35:23 +10:00
xfs_vnodeops.h
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