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linux/fs/xfs
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David Chinner 33a266dda9 [PATCH] Make BH_Unwritten a first class bufferhead flag V2 
Currently, XFS uses BH_PrivateStart for flagging unwritten extent state in a
bufferhead.  Recently, I found the long standing mmap/unwritten extent
conversion bug, and it was to do with partial page invalidation not clearing
the unwritten flag from bufferheads attached to the page but beyond EOF.  See
here for a full explaination:

http://oss.sgi.com/archives/xfs/2006-12/msg00196.html

The solution I have checked into the XFS dev tree involves duplicating code
from block_invalidatepage to clear the unwritten flag from the bufferhead(s),
and then calling block_invalidatepage() to do the rest.

Christoph suggested that this would be better solved by pushing the unwritten
flag into the common buffer head flags and just adding the call to
discard_buffer():

http://oss.sgi.com/archives/xfs/2006-12/msg00239.html

The following patch makes BH_Unwritten a first class citizen.

Signed-off-by: Dave Chinner <dgc@sgi.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:27 -08:00
..
linux-2.6 [PATCH] Make BH_Unwritten a first class bufferhead flag V2 2007-02-12 09:48:27 -08:00
quota [XFS] Remove unused header files for MAC and CAP checking functionality. 2007-02-10 18:37:28 +11:00
support [XFS] use struct kvec in struct uio 2007-02-10 18:35:21 +11:00
Kbuild
Kconfig
Makefile
Makefile-linux-2.6
xfs_acl.c [XFS] Remove unused header files for MAC and CAP checking functionality. 2007-02-10 18:37:28 +11:00
xfs_acl.h
xfs_ag.h
xfs_alloc_btree.c
xfs_alloc_btree.h [XFS] Remove unused arguments from the XFS_BTREE_*_ADDR macros. 2007-02-10 18:37:33 +11:00
xfs_alloc.c
xfs_alloc.h
xfs_arch.h
xfs_attr_leaf.c [XFS] Fix assertion in xfs_attr_shortform_remove(). 2007-02-10 18:36:53 +11:00
xfs_attr_leaf.h
xfs_attr_sf.h
xfs_attr.c [XFS] Remove unused argument to xfs_bmap_finish 2007-02-10 18:37:16 +11:00
xfs_attr.h
xfs_behavior.c
xfs_behavior.h
xfs_bit.c [XFS] Keep stack usage down for 4k stacks by using noinline. 2007-02-10 18:34:56 +11:00
xfs_bit.h
xfs_bmap_btree.c [XFS] Remove a bunch of unused functions from XFS. 2007-02-10 18:37:40 +11:00
xfs_bmap_btree.h [XFS] Remove a bunch of unused functions from XFS. 2007-02-10 18:37:40 +11:00
xfs_bmap.c [XFS] Remove a bunch of unused functions from XFS. 2007-02-10 18:37:40 +11:00
xfs_bmap.h [XFS] Remove unused argument to xfs_bmap_finish 2007-02-10 18:37:16 +11:00
xfs_btree.c
xfs_btree.h [XFS] Remove unused arguments from the XFS_BTREE_*_ADDR macros. 2007-02-10 18:37:33 +11:00
xfs_buf_item.c [XFS] Keep stack usage down for 4k stacks by using noinline. 2007-02-10 18:34:56 +11:00
xfs_buf_item.h [XFS] Get rid of old 5.3/6.1 v1 log items. Cleanup patch sent in by Eric 2007-02-10 18:35:02 +11:00
xfs_clnt.h
xfs_da_btree.c [XFS] Remove a bunch of unused functions from XFS. 2007-02-10 18:37:40 +11:00
xfs_da_btree.h [XFS] Remove a bunch of unused functions from XFS. 2007-02-10 18:37:40 +11:00
xfs_dfrag.c [XFS] Remove unused header files for MAC and CAP checking functionality. 2007-02-10 18:37:28 +11:00
xfs_dfrag.h
xfs_dinode.h
xfs_dir2_block.c
xfs_dir2_block.h
xfs_dir2_data.c
xfs_dir2_data.h
xfs_dir2_leaf.c
xfs_dir2_leaf.h
xfs_dir2_node.c
xfs_dir2_node.h
xfs_dir2_sf.c
xfs_dir2_sf.h
xfs_dir2_trace.c
xfs_dir2_trace.h
xfs_dir2.c
xfs_dir2.h
xfs_dmapi.h [XFS] Remove KERNEL_VERSION macros from xfs_dmapi.h 2006-11-11 18:05:06 +11:00
xfs_dmops.c
xfs_error.c [XFS] Remove a bunch of unused functions from XFS. 2007-02-10 18:37:40 +11:00
xfs_error.h [XFS] Remove a bunch of unused functions from XFS. 2007-02-10 18:37:40 +11:00
xfs_extfree_item.c [XFS] Keep stack usage down for 4k stacks by using noinline. 2007-02-10 18:34:56 +11:00
xfs_extfree_item.h
xfs_fs.h
xfs_fsops.c [XFS] Remove unused arguments from the XFS_BTREE_*_ADDR macros. 2007-02-10 18:37:33 +11:00
xfs_fsops.h
xfs_ialloc_btree.c
xfs_ialloc_btree.h [XFS] Remove unused arguments from the XFS_BTREE_*_ADDR macros. 2007-02-10 18:37:33 +11:00
xfs_ialloc.c [XFS] Keep stack usage down for 4k stacks by using noinline. 2007-02-10 18:34:56 +11:00
xfs_ialloc.h
xfs_iget.c [XFS] Prevent a deadlock when xfslogd unpins inodes. 2006-11-11 18:05:00 +11:00
xfs_imap.h
xfs_inode_item.c [XFS] Keep stack usage down for 4k stacks by using noinline. 2007-02-10 18:34:56 +11:00
xfs_inode_item.h
xfs_inode.c [XFS] Remove unused header files for MAC and CAP checking functionality. 2007-02-10 18:37:28 +11:00
xfs_inode.h [XFS] Clean up i_flags and i_flags_lock handling. 2006-11-11 18:04:54 +11:00
xfs_inum.h
xfs_iocore.c
xfs_iomap.c [XFS] Remove unused header files for MAC and CAP checking functionality. 2007-02-10 18:37:28 +11:00
xfs_iomap.h
xfs_itable.c
xfs_itable.h
xfs_log_priv.h
xfs_log_recover.c [XFS] Re-initialize the per-cpu superblock counters after recovery. 2007-02-10 18:36:29 +11:00
xfs_log_recover.h
xfs_log.c
xfs_log.h
xfs_mount.c [XFS] Re-initialize the per-cpu superblock counters after recovery. 2007-02-10 18:36:29 +11:00
xfs_mount.h [XFS] Re-initialize the per-cpu superblock counters after recovery. 2007-02-10 18:36:29 +11:00
xfs_qmops.c
xfs_quota.h
xfs_refcache.h
xfs_rename.c [XFS] Remove unused argument to xfs_bmap_finish 2007-02-10 18:37:16 +11:00
xfs_rtalloc.c [XFS] Remove a bunch of unused functions from XFS. 2007-02-10 18:37:40 +11:00
xfs_rtalloc.h [XFS] Remove a bunch of unused functions from XFS. 2007-02-10 18:37:40 +11:00
xfs_rw.c [XFS] Remove unused header files for MAC and CAP checking functionality. 2007-02-10 18:37:28 +11:00
xfs_rw.h
xfs_sb.h
xfs_trans_ail.c [XFS] Workaround log space issue by increasing XFS_TRANS_PUSH_AIL_RESTARTS 2007-02-10 18:35:52 +11:00
xfs_trans_buf.c
xfs_trans_extfree.c
xfs_trans_inode.c
xfs_trans_item.c
xfs_trans_priv.h
xfs_trans_space.h
xfs_trans.c [XFS] Make growfs work for amounts greater than 2TB 2007-02-10 18:36:10 +11:00
xfs_trans.h [XFS] Make growfs work for amounts greater than 2TB 2007-02-10 18:36:10 +11:00
xfs_types.h
xfs_utils.c
xfs_utils.h
xfs_vfsops.c [XFS] Make freeze code a little cleaner. 2007-02-10 18:37:22 +11:00
xfs_vnodeops.c [XFS] Remove unused header files for MAC and CAP checking functionality. 2007-02-10 18:37:28 +11:00
xfs.h