Chris Mason 3b951516ed Btrfs: Use the extent map cache to find the logical disk block during data retries ... The data read retry code needs to find the logical disk block before it can resubmit new bios. But, finding this block isn't allowed to take the fs_mutex because that will deadlock with a number of different callers. This changes the retry code to use the extent map cache instead, but that requires the extent map cache to have the extent we're looking for. This is a problem because btrfs_drop_extent_cache just drops the entire extent instead of the little tiny part it is invalidating. The bulk of the code in this patch changes btrfs_drop_extent_cache to invalidate only a portion of the extent cache, and changes btrfs_get_extent to deal with the results. Signed-off-by: Chris Mason <chris.mason@oracle.com>		2008-09-25 11:04:01 -04:00
..
acl.c	Btrfs: Include sched.h in the acl code for current (fixes compile on 2.6.23)	2008-09-25 11:03:59 -04:00
bit-radix.c	Btrfs: trivial include fixups	2007-07-11 10:00:37 -04:00
bit-radix.h	Btrfs: add GPLv2	2007-06-12 09:07:21 -04:00
btrfs_inode.h	Btrfs: Handle checksumming errors while reading data blocks	2008-09-25 11:04:01 -04:00
COPYING	Btrfs: add GPLv2	2007-06-12 09:07:21 -04:00
crc32c.h	Btrfs: Endianess bug fix for v0.13 with kernels	2008-09-25 11:04:01 -04:00
ctree.c	Btrfs: Don't wait on tree block writeback before freeing them anymore	2008-09-25 11:04:01 -04:00
ctree.h	Btrfs: Write bio checksumming outside the FS mutex	2008-09-25 11:04:01 -04:00
dir-item.c	Btrfs: unaligned access fixes	2008-09-25 11:04:00 -04:00
disk-io.c	Btrfs: Only do async bio submission for pdflush	2008-09-25 11:04:01 -04:00
disk-io.h	Btrfs: Create a work queue for bio writes	2008-09-25 11:04:01 -04:00
extent_io.c	Btrfs: Use the extent map cache to find the logical disk block during data retries	2008-09-25 11:04:01 -04:00
extent_io.h	Btrfs: Create a work queue for bio writes	2008-09-25 11:04:01 -04:00
extent_map.c	Btrfs: Split the extent_map code into two parts	2008-09-25 11:03:59 -04:00
extent_map.h	Btrfs: Split the extent_map code into two parts	2008-09-25 11:03:59 -04:00
extent-tree.c	Btrfs: Use the extent map cache to find the logical disk block during data retries	2008-09-25 11:04:01 -04:00
file-item.c	Btrfs: Write bio checksumming outside the FS mutex	2008-09-25 11:04:01 -04:00
file.c	Btrfs: Use the extent map cache to find the logical disk block during data retries	2008-09-25 11:04:01 -04:00
hash.c	btrfs-progs: Stop stomping on 'name' input parameter	2008-09-25 11:04:01 -04:00
hash.h	Btrfs: unaligned access fixes	2008-09-25 11:04:00 -04:00
inode-item.c	Btrfs: Add back pointers from the inode to the directory that references it	2008-09-25 11:03:58 -04:00
inode-map.c	Fix for btrfs_find_free_objectid	2008-09-25 11:03:59 -04:00
inode.c	Btrfs: Use the extent map cache to find the logical disk block during data retries	2008-09-25 11:04:01 -04:00
INSTALL	Btrfs: Documentation update	2007-06-22 14:49:31 -04:00
ioctl.h	Btrfs: Add support for device scanning and detection ioctls	2008-09-25 11:04:01 -04:00
Makefile	Btrfs: Add support for multiple devices per filesystem	2008-09-25 11:04:00 -04:00
ordered-data.c	Btrfs: Fix data=ordered vs wait_on_inode deadlock on older kernels	2008-09-25 11:03:59 -04:00
ordered-data.h	Btrfs: Fix data=ordered vs wait_on_inode deadlock on older kernels	2008-09-25 11:03:59 -04:00
print-tree.c	Btrfs: Add chunk uuids and update multi-device back references	2008-09-25 11:04:01 -04:00
print-tree.h	Btrfs: Create extent_buffer interface for large blocksizes	2008-09-25 11:03:56 -04:00
root-tree.c	Btrfs: Change st_blocksize to 4k	2008-09-25 11:03:59 -04:00
struct-funcs.c	Btrfs: unaligned access fixes	2008-09-25 11:04:00 -04:00
super.c	Fix btrfs_fill_super to return -EINVAL when no FS found	2008-09-25 11:04:01 -04:00
sysfs.c	Btrfs: Disable sysfs files on older kernels	2008-09-25 11:04:00 -04:00
TODO	Btrfs: add GPLv2	2007-06-12 09:07:21 -04:00
transaction.c	Btrfs: Do metadata checksums for reads via a workqueue	2008-09-25 11:04:01 -04:00
transaction.h	Btrfs: Split the extent_map code into two parts	2008-09-25 11:03:59 -04:00
tree-defrag.c	Btrfs: Verify checksums on tree blocks found without read_tree_block	2008-09-25 11:04:01 -04:00
volumes.c	Btrfs: Use the extent map cache to find the logical disk block during data retries	2008-09-25 11:04:01 -04:00
volumes.h	Btrfs: Add chunk uuids and update multi-device back references	2008-09-25 11:04:01 -04:00
xattr.c	Btrfs: Fix compile on kernel without ACLs enabled	2008-09-25 11:03:59 -04:00
xattr.h	xattr support for btrfs	2008-09-25 11:03:57 -04:00