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9779b72f05
linux/fs/btrfs
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Chris Mason 9779b72f05 Btrfs: find smallest available device extent during chunk allocation 
Allocating new block group is easy when the disk has plenty of space.
But things get difficult as the disk fills up, especially if
the FS has been run through btrfs-vol -b.  The balance operation
is likely to make the total bytes available on the device greater
than the largest extent we'll actually be able to allocate.

But the device extent allocation code incorrectly assumes that a device
with 5G free will be able to allocate a 5G extent.  It isn't normally a
problem because device extents don't get freed unless btrfs-vol -b
is run.

This fixes the device extent allocator to remember the largest free
extent it can find, and then uses that value as a fallback.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2009-07-24 16:41:41 -04:00
..
acl.c Fix btrfs when ACLs are configured out 2009-06-10 11:36:43 -04:00
async-thread.c Btrfs: convert nested spin_lock_irqsave to spin_lock 2009-07-22 16:49:00 -04:00
async-thread.h Btrfs: add a priority queue to the async thread helpers 2009-04-20 15:53:08 -04:00
btrfs_inode.h Btrfs: implement FS_IOC_GETFLAGS/SETFLAGS/GETVERSION 2009-06-10 11:29:52 -04:00
compat.h Btrfs: drop remaining LINUX_KERNEL_VERSION checks and compat code 2009-01-06 09:38:55 -05:00
compression.c Btrfs: implement FS_IOC_GETFLAGS/SETFLAGS/GETVERSION 2009-06-10 11:29:52 -04:00
compression.h Btrfs: Add zlib compression support 2008-10-29 14:49:59 -04:00
ctree.c Btrfs: Avoid delayed reference update looping 2009-07-24 12:42:46 -04:00
ctree.h Btrfs: async block group caching 2009-07-24 09:23:39 -04:00
delayed-ref.c Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE) 2009-06-10 11:29:46 -04:00
delayed-ref.h Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE) 2009-06-10 11:29:46 -04:00
dir-item.c Btrfs: leave btree locks spinning more often 2009-03-24 16:14:28 -04:00
disk-io.c Btrfs: async block group caching 2009-07-24 09:23:39 -04:00
disk-io.h Btrfs: leave btree locks spinning more often 2009-03-24 16:14:28 -04:00
export.c Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE) 2009-06-10 11:29:46 -04:00
export.h NFS support for btrfs - v3 2008-09-25 11:04:06 -04:00
extent_io.c btrfs: Fix set/clear_extent_bit for 'end == (u64)-1' 2009-06-10 11:29:46 -04:00
extent_io.h Btrfs: leave btree locks spinning more often 2009-03-24 16:14:28 -04:00
extent_map.c Btrfs: kill btrfs_cache_create 2009-04-24 15:46:04 -04:00
extent_map.h Btrfs: Fix csum error for compressed data 2008-11-10 07:34:43 -05:00
extent-tree.c Btrfs: clear all space_info->full after removing a block group 2009-07-24 16:30:55 -04:00
file-item.c Btrfs: leave btree locks spinning more often 2009-03-24 16:14:28 -04:00
file.c Btrfs: don't log the inode in file_write while growing the file 2009-07-02 13:41:16 -04:00
free-space-cache.c Btrfs: async block group caching 2009-07-24 09:23:39 -04:00
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: leave btree locks spinning more often 2009-03-24 16:14:28 -04:00
inode-map.c Btrfs: Fix a trivial warning using max() of u64 vs ULL. 2009-04-27 08:37:49 -04:00
inode.c Btrfs: adjust NULL test 2009-07-22 16:49:01 -04:00
ioctl.c Btrfs: fix the file clone ioctl for preallocated extents 2009-07-02 13:41:16 -04:00
ioctl.h Btrfs: fix ioctl arg size (userland incompatible change!) 2009-01-16 11:59:08 -05:00
Kconfig Btrfs: make btrfs acls selectable 2009-02-04 09:28:28 -05:00
locking.c Btrfs: fix typos in comments 2009-04-02 16:46:06 -04:00
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: use WRITE_SYNC for synchronous writes 2009-04-20 15:53:08 -04:00
ordered-data.h Btrfs: add extra flushing for renames and truncates 2009-03-31 14:27:58 -04:00
orphan.c Btrfs: Create orphan inode records to prevent lost files after a crash 2008-09-25 11:04:05 -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 Btrfs: Make btrfs_drop_snapshot work in larger and more efficient chunks 2009-02-04 09:27:02 -05:00
ref-cache.h Btrfs: Make btrfs_drop_snapshot work in larger and more efficient chunks 2009-02-04 09:27:02 -05:00
relocation.c Btrfs: fix locking issue in btrfs_find_next_key 2009-07-22 09:59:00 -04:00
root-tree.c Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE) 2009-06-10 11:29:46 -04:00
struct-funcs.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
super.c Btrfs: fix -o nodatasum printk spelling 2009-06-11 09:30:13 -04:00
sysfs.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
transaction.c Btrfs: make flushoncommit mount option correctly wait on ordered_extents 2009-07-24 13:17:44 -04:00
transaction.h Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE) 2009-06-10 11:29:46 -04:00
tree-defrag.c Btrfs: do extent allocation and reference count updates in the background 2009-03-24 16:14:25 -04:00
tree-log.c Btrfs: async block group caching 2009-07-24 09:23:39 -04:00
tree-log.h Btrfs: tree logging unlink/rename fixes 2009-03-24 16:14:52 -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: find smallest available device extent during chunk allocation 2009-07-24 16:41:41 -04:00
volumes.h Btrfs: avoid races between super writeout and device list updates 2009-06-10 15:17:02 -04:00
xattr.c Btrfs: selinux support 2009-02-04 09:29:13 -05:00
xattr.h Btrfs: selinux support 2009-02-04 09:29:13 -05:00
zlib.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00