diff options
| author | Chao Yu <chao@kernel.org> | 2023-11-22 17:47:15 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2023-11-28 21:59:51 +0300 |
| commit | d346fa09abff46988de9267b67b6900d9913d5a2 (patch) | |
| tree | da97310077218760313c3b334137fac0ef46d87d /fs/f2fs/sysfs.c | |
| parent | 8e9cf55ef89c775fdaaa7c6212dbb691420a4673 (diff) | |
| download | linux-d346fa09abff46988de9267b67b6900d9913d5a2.tar.xz | |
f2fs: sysfs: support discard_io_aware
It gives a way to enable/disable IO aware feature for background
discard, so that we can tune background discard more precisely
based on undiscard condition. e.g. force to disable IO aware if
there are large number of discard extents, and discard IO may
always be interrupted by frequent common IO.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/sysfs.c')
| -rw-r--r-- | fs/f2fs/sysfs.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index 417fae96890f..7099ffa57299 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -516,6 +516,13 @@ out: return count; } + if (!strcmp(a->attr.name, "discard_io_aware")) { + if (t >= DPOLICY_IO_AWARE_MAX) + return -EINVAL; + *ui = t; + return count; + } + if (!strcmp(a->attr.name, "migration_granularity")) { if (t == 0 || t > sbi->segs_per_sec) return -EINVAL; @@ -926,6 +933,7 @@ DCC_INFO_GENERAL_RW_ATTR(discard_io_aware_gran); DCC_INFO_GENERAL_RW_ATTR(discard_urgent_util); DCC_INFO_GENERAL_RW_ATTR(discard_granularity); DCC_INFO_GENERAL_RW_ATTR(max_ordered_discard); +DCC_INFO_GENERAL_RW_ATTR(discard_io_aware); /* NM_INFO ATTR */ NM_INFO_RW_ATTR(max_roll_forward_node_blocks, max_rf_node_blocks); @@ -1074,6 +1082,7 @@ static struct attribute *f2fs_attrs[] = { ATTR_LIST(discard_urgent_util), ATTR_LIST(discard_granularity), ATTR_LIST(max_ordered_discard), + ATTR_LIST(discard_io_aware), ATTR_LIST(pending_discard), ATTR_LIST(gc_mode), ATTR_LIST(ipu_policy), |