Omar Sandoval 17024ad0a0 Btrfs: fix early ENOSPC due to delalloc ... If a lot of metadata is reserved for outstanding delayed allocations, we rely on shrink_delalloc() to reclaim metadata space in order to fulfill reservation tickets. However, shrink_delalloc() has a shortcut where if it determines that space can be overcommitted, it will stop early. This made sense before the ticketed enospc system, but now it means that shrink_delalloc() will often not reclaim enough space to fulfill any tickets, leading to an early ENOSPC. (Reservation tickets don't care about being able to overcommit, they need every byte accounted for.) Fix it by getting rid of the shortcut so that shrink_delalloc() reclaims all of the metadata it is supposed to. This fixes early ENOSPCs we were seeing when doing a btrfs receive to populate a new filesystem, as well as early ENOSPCs Christoph saw when doing a big cp -r onto Btrfs. Fixes: 957780eb27 ("Btrfs: introduce ticketed enospc infrastructure") Tested-by: Christoph Anton Mitterer <mail@christoph.anton.mitterer.name> Cc: stable@vger.kernel.org Reviewed-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: David Sterba <dsterba@suse.com>		2017-07-24 16:04:26 +02:00
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tests	Btrfs: replace tree->mapping with tree->private_data	2017-06-19 18:25:58 +02:00
acl.c	btrfs: Don't clear SGID when inheriting ACLs	2017-06-29 20:24:59 +02:00
async-thread.c	btrfs: fix crash when tracepoint arguments are freed by wq callbacks	2017-01-09 11:24:50 +01:00
async-thread.h	btrfs: limit async_work allocation and worker func duration	2016-12-13 11:01:30 -08:00
backref.c	btrfs: use GFP_KERNEL in init_ipath	2017-06-19 18:26:02 +02:00
backref.h	btrfs: cleanup, remove inode_item_info helper	2015-01-14 19:23:47 +01:00
btrfs_inode.h	Btrfs: fix reported number of inode blocks	2017-04-26 16:27:26 +01:00
check-integrity.c	btrfs: sink gfp parameter to btrfs_io_bio_alloc	2017-06-19 18:26:04 +02:00
check-integrity.h	btrfs: take an fs_info directly when the root is not used otherwise	2016-12-06 16:06:59 +01:00
compression.c	btrfs: cloned bios must not be iterated by bio_for_each_segment_all	2017-07-14 20:39:31 +02:00
compression.h	btrfs: reduce arguments for decompress_bio ops	2017-06-19 18:26:00 +02:00
ctree.c	btrfs: adjust includes after vmalloc removal	2017-06-19 18:26:02 +02:00
ctree.h	btrfs: qgroup: Fix qgroup reserved space underflow by only freeing reserved ranges	2017-06-29 20:17:02 +02:00
dedupe.h	btrfs: expand cow_file_range() to support in-band dedup and subpage-blocksize	2016-07-26 13:52:25 +02:00
delayed-inode.c	btrfs: convert btrfs_delayed_item.refs from atomic_t to refcount_t	2017-04-18 14:07:23 +02:00
delayed-inode.h	btrfs: convert btrfs_delayed_item.refs from atomic_t to refcount_t	2017-04-18 14:07:23 +02:00
delayed-ref.c	Btrfs: return old and new total ref mods when adding delayed refs	2017-06-29 20:17:01 +02:00
delayed-ref.h	Btrfs: return old and new total ref mods when adding delayed refs	2017-06-29 20:17:01 +02:00
dev-replace.c	btrfs: fix integer overflow in calc_reclaim_items_nr	2017-06-29 20:17:02 +02:00
dev-replace.h	btrfs: constify device path passed to relevant helpers	2017-02-28 14:26:07 +01:00
dir-item.c	btrfs: fix validation of XATTR_ITEM dir items	2017-06-29 20:06:11 +02:00
disk-io.c	btrfs: cloned bios must not be iterated by bio_for_each_segment_all	2017-07-14 20:39:31 +02:00
disk-io.h	btrfs: btrfs_wait_tree_block_writeback can be void return	2017-06-19 18:26:01 +02:00
export.c	btrfs: Check name_len before reading btrfs_get_name	2017-06-21 19:16:04 +02:00
export.h
extent_io.c	Btrfs: fix unexpected return value of bio_readpage_error	2017-07-14 20:42:37 +02:00
extent_io.h	Btrfs: fix unexpected return value of bio_readpage_error	2017-07-14 20:42:37 +02:00
extent_map.c	btrfs: convert extent_map.refs from atomic_t to refcount_t	2017-04-18 14:07:23 +02:00
extent_map.h	btrfs: convert extent_map.refs from atomic_t to refcount_t	2017-04-18 14:07:23 +02:00
extent-tree.c	Btrfs: fix early ENOSPC due to delalloc	2017-07-24 16:04:26 +02:00
file-item.c	Btrfs: change how we iterate bios in endio	2017-06-19 18:25:59 +02:00
file.c	btrfs: qgroup: Fix qgroup reserved space underflow by only freeing reserved ranges	2017-06-29 20:17:02 +02:00
free-space-cache.c	btrfs: use clear_page where appropriate	2017-04-18 14:07:26 +02:00
free-space-cache.h	btrfs: free-space-cache, clean up unnecessary root arguments	2017-02-17 12:03:56 +01:00
free-space-tree.c	Btrfs: use memalloc_nofs and kvzalloc() for free space tree bitmaps	2017-06-19 18:26:01 +02:00
free-space-tree.h	Btrfs: implement the free space B-tree	2015-12-17 12:16:47 -08:00
hash.c	crypto: Work around deallocated stack frame reference gcc bug on sparc.	2017-06-08 17:36:03 +08:00
hash.h	btrfs: advertise which crc32c implementation is being used at module load	2016-06-06 14:08:28 +02:00
inode-item.c	btrfs: take an fs_info directly when the root is not used otherwise	2016-12-06 16:06:59 +01:00
inode-map.c	btrfs: qgroup: Introduce extent changeset for qgroup reserve functions	2017-06-29 20:17:02 +02:00
inode-map.h	Btrfs: Initialize btrfs_root->highest_objectid when loading tree root and subvolume roots	2016-01-15 19:25:02 +01:00
inode.c	btrfs: btrfs_create_repair_bio never fails, skip error handling	2017-07-14 20:42:08 +02:00
ioctl.c	btrfs: fix integer overflow in calc_reclaim_items_nr	2017-06-29 20:17:02 +02:00
Kconfig	rcu: Make SRCU optional by using CONFIG_SRCU	2015-01-06 11:04:29 -08:00
locking.c	btrfs: cleanup, remove stray return statements	2016-01-07 14:30:52 +01:00
locking.h	btrfs: fix lockups from btrfs_clear_path_blocking	2014-11-19 10:34:35 -08:00
lzo.c	btrfs: switch to kvmalloc and GFP_KERNEL in lzo/zlib alloc_workspace	2017-06-19 18:26:02 +02:00
Makefile	Btrfs: add free space tree sanity tests	2015-12-17 12:16:47 -08:00
math.h	btrfs: cleanup 64bit/32bit divs, compile time constants	2015-03-03 17:23:57 +01:00
ordered-data.c	btrfs: fix integer overflow in calc_reclaim_items_nr	2017-06-29 20:17:02 +02:00
ordered-data.h	btrfs: fix integer overflow in calc_reclaim_items_nr	2017-06-29 20:17:02 +02:00
orphan.c
print-tree.c	Btrfs: let btrfs_print_leaf print more about block group	2017-06-19 18:26:00 +02:00
print-tree.h	btrfs: take an fs_info directly when the root is not used otherwise	2016-12-06 16:06:59 +01:00
props.c	btrfs: Verify dir_item in iterate_object_props	2017-06-21 19:16:04 +02:00
props.h
qgroup.c	btrfs: fix integer overflow in calc_reclaim_items_nr	2017-06-29 20:17:02 +02:00
qgroup.h	btrfs: qgroup: Fix qgroup reserved space underflow by only freeing reserved ranges	2017-06-29 20:17:02 +02:00
raid56.c	Btrfs: fix write corruption due to bio cloning on raid5/6	2017-07-13 19:26:01 +01:00
raid56.h	btrfs: take an fs_info directly when the root is not used otherwise	2016-12-06 16:06:59 +01:00
rcu-string.h
reada.c	btrfs: remove unused member err from reada_extent	2017-06-19 18:25:59 +02:00
relocation.c	btrfs: fix integer overflow in calc_reclaim_items_nr	2017-06-29 20:17:02 +02:00
root-tree.c	btrfs: Check name_len before in btrfs_del_root_ref	2017-06-21 19:16:04 +02:00
scrub.c	btrfs: fix integer overflow in calc_reclaim_items_nr	2017-06-29 20:17:02 +02:00
send.c	Btrfs: incremental send, fix invalid memory access	2017-07-06 23:02:30 +01:00
send.h	Btrfs: use linux/sizes.h to represent constants	2016-01-07 14:38:02 +01:00
struct-funcs.c	btrfs: fix string and comment grammatical issues and typos	2016-05-25 22:35:14 +02:00
super.c	btrfs: fix integer overflow in calc_reclaim_items_nr	2017-06-29 20:17:02 +02:00
sysfs.c	btrfs: Add quota_override knob into sysfs	2017-06-19 18:25:58 +02:00
sysfs.h	btrfs: sysfs: introduce helper for syncing bits with sysfs files	2016-01-21 18:50:40 +01:00
transaction.c	btrfs: fix integer overflow in calc_reclaim_items_nr	2017-06-29 20:17:02 +02:00
transaction.h	btrfs: remove unused qgroup members from btrfs_trans_handle	2017-04-18 14:07:25 +02:00
tree-defrag.c	Btrfs: fix locking bugs when defragging leaves	2015-12-18 02:51:32 +00:00
tree-log.c	Btrfs: fix dir item validation when replaying xattr deletes	2017-07-19 20:38:16 +02:00
tree-log.h	btrfs: Make btrfs_del_inode_ref take btrfs_inode	2017-02-14 15:50:54 +01:00
ulist.c	btrfs: ulist: rename ulist_fini to ulist_release	2017-02-17 12:03:50 +01:00
ulist.h	btrfs: ulist: rename ulist_fini to ulist_release	2017-02-17 12:03:50 +01:00
uuid-tree.c	btrfs: return the actual error value from from btrfs_uuid_tree_iterate	2016-12-19 18:08:15 +01:00
volumes.c	btrfs: preallocate device flush bio	2017-06-21 19:03:38 +02:00
volumes.h	btrfs: preallocate device flush bio	2017-06-21 19:03:38 +02:00
xattr.c	btrfs: Check name_len with boundary in verify dir_item	2017-06-21 19:16:04 +02:00
xattr.h	btrfs: Switch to generic xattr handlers	2016-05-17 19:17:09 -04:00
zlib.c	btrfs: switch to kvmalloc and GFP_KERNEL in lzo/zlib alloc_workspace	2017-06-19 18:26:02 +02:00