Liu Bo 625f1c8dc6 Btrfs: improve the loop of scrub_stripe ... 1) Right now scrub_stripe() is looping in some unnecessary cases: * when the found extent item's objectid has been out of the dev extent's range but we haven't finish scanning all the range within the dev extent * when all the items has been processed but we haven't finish scanning all the range within the dev extent In both cases, we can just finish the loop to save costs. 2) Besides, when the found extent item's length is larger than the stripe len(64k), we don't have to release the path and search again as it'll get at the same key used in the last loop, we can instead increase the logical cursor in place till all space of the extent is scanned. 3) And we use 0 as the key's offset to search btree, then get to previous item to find a smaller item, and again have to move to the next one to get the right item. Setting offset=-1 and previous_item() is the correct way. 4) As we won't find any checksum at offset unless this 'offset' is in a data extent, we can just find checksum when we're really going to scrub an extent. Signed-off-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com>		2013-05-06 15:55:26 -04:00
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acl.c
async-thread.c
async-thread.h
backref.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
backref.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
btrfs_inode.h	btrfs: fix minor typo in comment	2013-05-06 15:54:49 -04:00
check-integrity.c
check-integrity.h
compat.h
compression.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
compression.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
ctree.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
ctree.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
delayed-inode.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
delayed-inode.h
delayed-ref.c	Btrfs: separate sequence numbers for delayed ref tracking and tree mod log	2013-05-06 15:55:17 -04:00
delayed-ref.h
dev-replace.c
dev-replace.h
dir-item.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
disk-io.c	btrfs: remove unused gfp mask parameter from release_extent_buffer callchain	2013-05-06 15:55:24 -04:00
disk-io.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
export.c
export.h
extent_io.c	btrfs: remove unused gfp mask parameter from release_extent_buffer callchain	2013-05-06 15:55:24 -04:00
extent_io.h	btrfs: remove unused gfp mask parameter from release_extent_buffer callchain	2013-05-06 15:55:24 -04:00
extent_map.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
extent_map.h	Btrfs: fix bad extent logging	2013-05-06 15:54:34 -04:00
extent-tree.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
file-item.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
file.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
free-space-cache.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
free-space-cache.h	Btrfs: add some free space cache tests	2013-05-06 15:52:54 -04:00
hash.h
inode-item.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
inode-map.c
inode-map.h
inode.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
ioctl.c	btrfs: read entire device info under lock	2013-05-06 15:55:25 -04:00
Kconfig	btrfs: move leak debug code to functions	2013-05-06 15:55:16 -04:00
locking.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
locking.h
lzo.c
Makefile
math.h
ordered-data.c	Btrfs: improve the performance of the csums lookup	2013-05-06 15:54:35 -04:00
ordered-data.h	Btrfs: improve the performance of the csums lookup	2013-05-06 15:54:35 -04:00
orphan.c
print-tree.c	Btrfs: Include the device in most error printk()s	2013-05-06 15:54:23 -04:00
print-tree.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
qgroup.c	Btrfs: automatic rescan after "quota enable" command	2013-05-06 15:55:20 -04:00
raid56.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
raid56.h
rcu-string.h
reada.c	Btrfs: fix reada debug code compilation	2013-05-06 15:54:55 -04:00
relocation.c	btrfs: handle errors returned from get_tree_block_key	2013-05-06 15:55:24 -04:00
root-tree.c	Btrfs: delete unused parameter to btrfs_read_root_item()	2013-05-06 15:55:14 -04:00
scrub.c	Btrfs: improve the loop of scrub_stripe	2013-05-06 15:55:26 -04:00
send.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
send.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
struct-funcs.c
super.c	Btrfs: fix lockdep warning	2013-05-06 15:55:00 -04:00
sysfs.c
transaction.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
transaction.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
tree-defrag.c
tree-log.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
tree-log.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
ulist.c	Btrfs: add a rb_tree to improve performance of ulist search	2013-05-06 15:54:44 -04:00
ulist.h	Btrfs: add a rb_tree to improve performance of ulist search	2013-05-06 15:54:44 -04:00
version.h
volumes.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
volumes.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
xattr.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
xattr.h
zlib.c