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3f786596e0bf31be20e9abacd407c0e837bf67c1
scoutfs/kmod/src
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Chris Kirby 3f786596e0 Don't overrun the block budget in server_log_merge_free_work(). 
This fixes a potential fence post failure like the following:

error: 1 holders exceeded alloc budget av: bef 7407 now 7392, fr: bef 8185 now 7672

The code is only accounting for the freed btree blocks, not the dirtying of
other items. So it's possible to be at exactly (COMMIT_HOLD_ALLOC_BUDGET / 2),
dirty some log btree blocks, loop again, then consume another
(COMMIT_HOLD_ALLOC_BUDGET / 2) and blow past the total budget.

In this example, we went over by 13 blocks.

By only consuming up to 1/8 of the budget on each loop, and committing when we
have consumed 3/4 of the budget, we can avoid the fence post condition.

Signed-off-by: Chris Kirby <ckirby@versity.com>
2025-10-06 12:27:25 -05:00
..
trace
Add quota support
2024-06-28 15:09:05 -07:00
acl.c
Handle idmapped mounts in xattr_handler
2024-10-03 12:41:05 -07:00
acl.h
Handle idmapped mounts in xattr_handler
2024-10-03 12:41:05 -07:00
alloc.c
Add several low level includes.
2024-10-03 12:41:05 -07:00
alloc.h
Make data preallocation tunable
2022-10-14 14:03:35 -07:00
attr_x.c
Add project ID support
2024-06-28 15:09:05 -07:00
attr_x.h
Add attr_x core and ioctls
2024-06-28 14:53:49 -07:00
avl.c
…
avl.h
…
block.c
Shrinkers are now registered with a name.
2024-10-03 12:41:05 -07:00
block.h
Add stale block read retrying helper
2022-12-12 14:59:22 -08:00
btree.c
Don't pin input btrees when merging
2024-01-25 11:30:17 -08:00
btree.h
Don't pin input btrees when merging
2024-01-25 11:30:17 -08:00
client.c
Avoid integer wrapping pitfalls for (off, len) pairs.
2024-10-03 12:41:05 -07:00
client.h
Break client/server out of waiting network replies
2021-11-05 15:21:04 -05:00
cmp.h
…
counters.c
…
counters.h
Add shrinker counters for wkic and quota_info.
2024-09-18 13:40:54 -04:00
data.c
Do not copy to user while holding locks in scoutfs_data_fiemap()
2025-01-27 14:49:04 -05:00
data.h
Remove scoutfs_data_wait_check_iter
2024-06-25 15:11:20 -07:00
dir.c
Merge pull request #203 from versity/auke/new_inode_ctime
2025-02-25 15:23:16 -08:00
dir.h
Support .read/write_iter callbacks in lieu of .aio_read/write
2023-10-09 15:35:40 -04:00
endian_swap.h
…
export.c
Extend scoutfs_dir_add_next_linkrefs
2023-06-14 14:12:10 -07:00
export.h
…
ext.c
Print messages on extent ins/rem errors
2021-08-24 09:11:40 -07:00
ext.h
Print messages on extent ins/rem errors
2021-08-24 09:11:40 -07:00
fence.c
Deprecate struct timeval.
2024-10-03 12:41:05 -07:00
fence.h
Stop writing to other quorum slot blocks
2021-05-31 13:10:45 -07:00
file.c
Vfs methods become user namespace mount aware.
2024-10-03 12:41:05 -07:00
file.h
Vfs methods become user namespace mount aware.
2024-10-03 12:41:05 -07:00
forest.c
Add scoutfs_forest_read_items_roots
2024-06-28 15:09:05 -07:00
forest.h
Add scoutfs_forest_read_items_roots
2024-06-28 15:09:05 -07:00
format.h
Add indx xattr tag support
2024-06-28 15:09:05 -07:00
hash.h
…
inode.c
Vfs methods become user namespace mount aware.
2024-10-03 12:41:05 -07:00
inode.h
Vfs methods become user namespace mount aware.
2024-10-03 12:41:05 -07:00
ioctl.c
Avoid cluster locking while put_user() in _allocated_inos.
2025-01-27 14:49:04 -05:00
ioctl.h
Add indx xattr tag support
2024-06-28 15:09:05 -07:00
item.c
Work around sparse warning in _item_write_done
2025-10-03 09:34:23 -07:00
item.h
Add scoutfs_item_lookup_smaller_zero
2024-06-28 14:53:49 -07:00
Kconfig
…
kernelcompat.c
generic_perform_write signature changed
2024-10-03 12:41:05 -07:00
kernelcompat.h
Drop readdir pre-.iterate() compat (el7.5ish).
2025-01-23 14:28:40 -05:00
key.h
list_cmp_func_t introduced, using const.
2024-10-03 12:41:05 -07:00
lock_server.c
Allow null lock compatibility between nodes
2024-10-31 15:34:59 -07:00
lock_server.h
Remove unused lock server alloc and wri
2021-10-28 12:30:47 -07:00
lock.c
Avoid bad sparse warning in lock_invalidate()
2025-10-03 09:35:36 -07:00
lock.h
Add indx xattr tag support
2024-06-28 15:09:05 -07:00
Makefile
Add quota support
2024-06-28 15:09:05 -07:00
Makefile.kernelcompat
Drop readdir pre-.iterate() compat (el7.5ish).
2025-01-23 14:28:40 -05:00
msg.c
…
msg.h
Add a trivial trace_printk wrapper
2021-08-24 09:12:20 -07:00
net.c
Use bools instead of weird addition as or in net
2024-10-30 13:38:12 -07:00
net.h
Remove unused scoutfs_net_cancel_request()
2022-01-24 09:40:08 -08:00
omap.c
Free omap rid list as server exits
2022-07-06 15:16:19 -07:00
omap.h
Harden final inode deletion
2022-03-11 15:28:58 -08:00
options.c
Correctly set the log_merge_wait_timeout_ms option
2024-01-30 12:01:35 -08:00
options.h
Make log merge wait timeout tunable
2024-01-25 11:25:56 -08:00
per_task.c
…
per_task.h
…
quorum.c
kernel_setsockopt no longer available.
2024-10-03 12:41:05 -07:00
quorum.h
Make quorum config use more precise
2022-12-12 14:59:22 -08:00
quota.c
Shrinkers are now registered with a name.
2024-10-03 12:41:05 -07:00
quota.h
Add quota support
2024-06-28 15:09:05 -07:00
recov.c
list_cmp_func_t introduced, using const.
2024-10-03 12:41:05 -07:00
recov.h
Let _recov_next_pending iterate over rids
2021-05-26 14:18:28 -07:00
scoutfs_trace.c
…
scoutfs_trace.h
mmap() trace events.
2025-01-23 14:28:40 -05:00
server.c
Don't overrun the block budget in server_log_merge_free_work().
2025-10-06 12:27:25 -05:00
server.h
Have the server keep a private dirty super block
2023-01-06 11:15:45 -08:00
sort_priv.c
…
sort_priv.h
…
sparse-filtered.sh
Add initial filters for warnings in distro source
2025-10-03 09:35:36 -07:00
spbm.c
scoutfs: Tidy some enum usage
2020-11-30 13:35:44 -08:00
spbm.h
…
srch.c
__vmalloc defaults to PAGE_KERNEL everywhere, so the arg was removed.
2024-10-03 12:41:05 -07:00
srch.h
Rotate srch files as log trees items are reclaimed
2021-06-17 09:37:45 -07:00
super.c
bdev_open_by_path is now removed as well.
2024-11-27 18:52:39 -08:00
super.h
bdev_open_by_path is now removed as well.
2024-11-27 18:52:39 -08:00
sysfs.c
Add several low level includes.
2024-10-03 12:41:05 -07:00
sysfs.h
Remove __exit from scoutfs_sysfs_exit()
2022-10-26 16:42:27 -07:00
totl.c
Extract .totl. item merging into own functions
2024-06-28 15:09:05 -07:00
totl.h
Extract .totl. item merging into own functions
2024-06-28 15:09:05 -07:00
trans.c
Retry client commit and get log trees separately
2025-04-29 11:46:38 -07:00
trans.h
Return ENOSPC as space gets low
2021-07-07 14:13:14 -07:00
triggers.c
debugfs_create_atomic_t now returns void, don't check result
2024-10-03 12:41:05 -07:00
triggers.h
Add test for srch continutation safe pos errors
2023-11-07 12:34:00 -08:00
tseq.c
Squelch warning from bpf_iter.c.
2024-10-03 12:41:05 -07:00
tseq.h
…
util.h
Use count/scan objects shrinking interface
2023-10-09 15:35:40 -04:00
volopt.c
Add data_alloc_zone_blocks volume option
2021-05-21 15:31:02 -07:00
volopt.h
Add volume options super, server, and sysfs
2021-05-19 14:15:06 -07:00
wkic.c
Shrinkers are now registered with a name.
2024-10-03 12:41:05 -07:00
wkic.h
Add the weak item cache
2024-06-28 15:09:05 -07:00
xattr.c
Handle idmapped mounts in xattr_handler
2024-10-03 12:41:05 -07:00
xattr.h
Add indx xattr tag support
2024-06-28 15:09:05 -07:00