Chris Mason 4845e44ffd Btrfs: rework O_DIRECT enospc handling ... This changes O_DIRECT write code to mark extents as delalloc while it is processing them. Yan Zheng has reworked the enospc accounting based on tracking delalloc extents and this makes it much easier to track enospc in the O_DIRECT code. There are a few space cases with the O_DIRECT code though, it only sets the EXTENT_DELALLOC bits, instead of doing EXTENT_DELALLOC | EXTENT_DIRTY | EXTENT_UPTODATE, because we don't want to mess with clearing the dirty and uptodate bits when things go wrong. This is important because there are no pages in the page cache, so any extent state structs that we put in the tree won't get freed by releasepage. We have to clear them ourselves as the DIO ends. With this commit, we reserve space at in btrfs_file_aio_write, and then as each btrfs_direct_IO call progresses it sets EXTENT_DELALLOC on the range. btrfs_get_blocks_direct is responsible for clearing the delalloc at the same time it drops the extent lock. Signed-off-by: Chris Mason <chris.mason@oracle.com>		2010-05-25 21:52:08 -04:00
..
acl.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
async-thread.c	Btrfs: don't walk around with task->state != TASK_RUNNING	2010-05-25 10:34:58 -04:00
async-thread.h	Btrfs: fix deadlock on async thread startup	2009-10-05 09:44:45 -04:00
btrfs_inode.h	Btrfs: Metadata reservation for orphan inodes	2010-05-25 10:34:52 -04:00
compat.h	Btrfs: drop remaining LINUX_KERNEL_VERSION checks and compat code	2009-01-06 09:38:55 -05:00
compression.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable	2010-04-05 13:21:15 -07:00
compression.h	Btrfs: Add zlib compression support	2008-10-29 14:49:59 -04:00
ctree.c	Btrfs: Metadata ENOSPC handling for balance	2010-05-25 10:34:54 -04:00
ctree.h	Btrfs: add basic DIO read/write support	2010-05-25 10:34:57 -04:00
delayed-ref.c	Btrfs: Integrate metadata reservation with start_transaction	2010-05-25 10:34:50 -04:00
delayed-ref.h	Btrfs: Integrate metadata reservation with start_transaction	2010-05-25 10:34:50 -04:00
dir-item.c	Btrfs: Pass transaction handle to security and ACL initialization functions	2009-12-17 12:33:34 -05:00
disk-io.c	Btrfs: use async helpers for DIO write checksumming	2010-05-25 10:34:58 -04:00
disk-io.h	Btrfs: use async helpers for DIO write checksumming	2010-05-25 10:34:58 -04:00
export.c	Btrfs: change how we mount subvolumes	2010-03-15 10:58:13 -04:00
export.h	NFS support for btrfs - v3	2008-09-25 11:04:06 -04:00
extent_io.c	Btrfs: rework O_DIRECT enospc handling	2010-05-25 21:52:08 -04:00
extent_io.h	Btrfs: rework O_DIRECT enospc handling	2010-05-25 21:52:08 -04:00
extent_map.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
extent_map.h	Btrfs: search for an allocation hint while filling file COW	2009-09-18 16:08:52 -04:00
extent-tree.c	Btrfs: Metadata ENOSPC handling for balance	2010-05-25 10:34:54 -04:00
file-item.c	Btrfs: add basic DIO read/write support	2010-05-25 10:34:57 -04:00
file.c	Btrfs: rework O_DIRECT enospc handling	2010-05-25 21:52:08 -04:00
free-space-cache.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
free-space-cache.h	Btrfs: use hybrid extents+bitmap rb tree for free space	2009-07-24 09:23:30 -04:00
hash.h	Btrfs: remove crc32c.h and use libcrc32c directly.	2009-06-10 11:29:53 -04:00
inode-item.c	Btrfs: Integrate metadata reservation with start_transaction	2010-05-25 10:34:50 -04:00
inode-map.c	Btrfs: do not reuse objectid of deleted snapshot/subvol	2009-09-21 15:56:00 -04:00
inode.c	Btrfs: rework O_DIRECT enospc handling	2010-05-25 21:52:08 -04:00
ioctl.c	Btrfs: Metadata reservation for orphan inodes	2010-05-25 10:34:52 -04:00
ioctl.h	Btrfs: use __u64 types in ioctl.h	2010-03-16 14:24:27 -04:00
Kconfig	Revert "task_struct: make journal_info conditional"	2009-12-17 13:23:24 -08:00
locking.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
locking.h	Btrfs: fix spinlock assertions on UP systems	2009-03-09 11:45:38 -04:00
Makefile	Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE)	2009-06-10 11:29:46 -04:00
ordered-data.c	Btrfs: add basic DIO read/write support	2010-05-25 10:34:57 -04:00
ordered-data.h	Btrfs: add basic DIO read/write support	2010-05-25 10:34:57 -04:00
orphan.c	Btrfs: change how subvolumes are organized	2009-09-21 15:56:00 -04:00
print-tree.c	Btrfs: remove of redundant btrfs_header_level	2009-07-22 16:52:13 -04:00
print-tree.h	Btrfs: Create extent_buffer interface for large blocksizes	2008-09-25 11:03:56 -04:00
ref-cache.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
ref-cache.h	Btrfs: use RB_ROOT to intialize rb_trees instead of setting rb_node to NULL	2010-03-08 16:26:50 -05:00
relocation.c	Btrfs: Metadata ENOSPC handling for balance	2010-05-25 10:34:54 -04:00
root-tree.c	Btrfs: Metadata reservation for orphan inodes	2010-05-25 10:34:52 -04:00
struct-funcs.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
super.c	Btrfs: Metadata reservation for orphan inodes	2010-05-25 10:34:52 -04:00
sysfs.c	Driver core: Constify struct sysfs_ops in struct kobj_type	2010-03-07 17:04:49 -08:00
transaction.c	Btrfs: don't walk around with task->state != TASK_RUNNING	2010-05-25 10:34:58 -04:00
transaction.h	Btrfs: Introduce global metadata reservation	2010-05-25 10:34:52 -04:00
tree-defrag.c	Btrfs: Introduce global metadata reservation	2010-05-25 10:34:52 -04:00
tree-log.c	Btrfs: Metadata ENOSPC handling for tree log	2010-05-25 10:34:53 -04:00
tree-log.h	Btrfs: Metadata ENOSPC handling for tree log	2010-05-25 10:34:53 -04:00
version.h	Update Btrfs files for in-kernel usage	2008-09-25 15:41:59 -04:00
version.sh	Btrfs: Fixes for 2.6.28-rc API changes	2008-11-19 21:17:22 -05:00
volumes.c	Btrfs: Integrate metadata reservation with start_transaction	2010-05-25 10:34:50 -04:00
volumes.h	Btrfs: make balance code choose more wisely when relocating	2009-09-21 19:23:48 -04:00
xattr.c	Btrfs: Integrate metadata reservation with start_transaction	2010-05-25 10:34:50 -04:00
xattr.h	Btrfs: Pass transaction handle to security and ACL initialization functions	2009-12-17 12:33:34 -05:00
zlib.c	Btrfs: correct error-handling zlib error handling	2009-08-07 13:51:33 -04:00