Josef Bacik 996478ca9c btrfs: change how we decide to commit transactions during flushing ... Nikolay reported that generic/273 was failing currently with ENOSPC. Turns out this is because we get to the point where the outstanding reservations are greater than the pinned space on the fs. This is a mistake, previously we used the current reservation amount in may_commit_transaction, not the entire outstanding reservation amount. Fix this to find the minimum byte size needed to make progress in flushing, and pass that into may_commit_transaction. From there we can make a smarter decision on whether to commit the transaction or not. This fixes the failure in generic/273. From Nikolai, IOW: when we go to the final stage of deciding whether to do trans commit, instead of passing all the reservations from all tickets we just pass the reservation for the current ticket. Otherwise, in case all reservations exceed pinned space, then we don't commit transaction and fail prematurely. Before we passed num_bytes from flush_space, where num_bytes was the sum of all pending reserverations, but now all we do is take the first ticket and commit the trans if we can satisfy that. Fixes: 957780eb27 ("Btrfs: introduce ticketed enospc infrastructure") Cc: stable@vger.kernel.org # 4.8 Reported-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Josef Bacik <jbacik@fb.com> Reviewed-by: Nikolay Borisov <nborisov@suse.com> Tested-by: Nikolay Borisov <nborisov@suse.com> [ added Nikolai's comment ] Signed-off-by: David Sterba <dsterba@suse.com>		2017-10-30 12:27:57 +01:00
..
tests	btrfs: tests: Fix a memory leak in error handling path in 'run_test()'	2017-10-30 12:27:56 +01:00
acl.c	btrfs: preserve i_mode if __btrfs_set_acl() fails	2017-08-21 17:47:42 +02:00
async-thread.c	Btrfs: fix confusing worker helper info in stacktrace	2017-10-30 12:27:57 +01:00
async-thread.h	btrfs: constify tracepoint arguments	2017-08-16 14:19:53 +02:00
backref.c	Btrfs: convert to use btrfs_get_extent_inline_ref_type	2017-08-21 17:47:43 +02:00
backref.h	btrfs: backref, add tracepoints for prelim_ref insertion and merging	2017-08-16 16:12:01 +02:00
btrfs_inode.h	btrfs: separate defrag and property compression	2017-08-16 16:12:05 +02:00
check-integrity.c	btrfs: return -ENOMEM on allocation failure in btrfsic	2017-10-30 12:27:57 +01:00
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	Merge branch 'for-4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux	2017-09-29 12:57:35 -07:00
compression.h	Merge branch 'zstd-minimal' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2017-09-14 17:30:49 -07:00
ctree.c	btrfs: Remove unused arguments from btrfs_changed_cb_t	2017-10-30 12:27:56 +01:00
ctree.h	btrfs: Remove unused arguments from btrfs_changed_cb_t	2017-10-30 12:27:56 +01:00
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: increase ctx->pos for delayed dir index	2017-08-18 16:36:20 +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	Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-09-14 18:54:01 -07:00
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: remove bio_flags which indicates a meta block of log-tree	2017-10-30 12:27:56 +01:00
disk-io.h	btrfs: use named constant for bdev blocksize	2017-08-16 16:12:04 +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: remove bio_flags which indicates a meta block of log-tree	2017-10-30 12:27:56 +01:00
extent_io.h	Btrfs: remove bio_flags which indicates a meta block of log-tree	2017-10-30 12:27:56 +01:00
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: change how we decide to commit transactions during flushing	2017-10-30 12:27:57 +01:00
file-item.c	Merge branch 'for-4.13-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux	2017-07-05 16:41:23 -07:00
file.c	Merge branch 'work.read_write' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-09-14 19:29:55 -07:00
free-space-cache.c	btrfs: drop newlines from strings when using btrfs_* helpers	2017-08-16 16:12:02 +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: pass fs_info to btrfs_del_root instead of tree_root	2017-08-21 17:49:54 +02:00
free-space-tree.h	btrfs: expose internal free space tree routine only if sanity tests are enabled	2017-08-18 16:36:29 +02:00
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: Remove unused parameter from check_direct_IO	2017-10-30 12:27:56 +01:00
ioctl.c	btrfs: make array types static const, reduces object code size	2017-10-30 12:27:57 +01:00
Kconfig	btrfs: Add zstd support	2017-08-15 09:02:09 -07:00
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 zstd support	2017-08-15 09:02:09 -07:00
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	btrfs: kill the key type accessor helpers	2014-09-17 13:37:12 -07:00
print-tree.c	Btrfs: add one more sanity check for shared ref type	2017-08-21 17:47:43 +02:00
print-tree.h	btrfs: get fs_info from eb in btrfs_print_tree, remove argument	2017-08-16 16:12:03 +02:00
props.c	Merge branch 'zstd-minimal' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2017-09-14 17:30:49 -07:00
props.h	Btrfs: add support for inode properties	2014-01-28 13:20:24 -08:00
qgroup.c	btrfs: Report error on removing qgroup if del_qgroup_item fails	2017-09-26 14:54:01 +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 memory leak in raid56	2017-10-30 12:27:57 +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 NULL pointer dereference from free_reloc_roots()	2017-09-26 14:51:49 +02:00
root-tree.c	btrfs: Clean up dead code in root-tree	2017-10-30 12:27:56 +01:00
scrub.c	Merge branch 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux	2017-09-09 13:27:51 -07:00
send.c	Btrfs: send, apply asynchronous page cache readahead to enhance page read	2017-10-30 12:27:57 +01:00
send.h	Btrfs: use linux/sizes.h to represent constants	2016-01-07 14:38:02 +01:00
struct-funcs.c	btrfs: struct-funcs, constify readers	2017-08-16 14:19:53 +02:00
super.c	btrfs: convert all mount option checking code to use btrfs_test_opt	2017-10-30 12:27:56 +01:00
sysfs.c	Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-09-14 18:54:01 -07:00
sysfs.h	btrfs: sysfs: introduce helper for syncing bits with sysfs files	2016-01-21 18:50:40 +01:00
transaction.c	Btrfs: make plug in writing meta blocks really work	2017-10-30 12:27:56 +01:00
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: Remove unused variable	2017-10-30 12:27:55 +01:00
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: Rework error handling of add_extent_mapping in __btrfs_alloc_chunk	2017-10-30 12:27:56 +01:00
volumes.h	Merge branch 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux	2017-09-09 13:27:51 -07:00
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
zstd.c	btrfs: Add zstd support	2017-08-15 09:02:09 -07:00