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authorKent Overstreet <kent.overstreet@gmail.com>2022-04-07 18:38:16 -0400
committerKent Overstreet <kent.overstreet@gmail.com>2022-04-07 18:38:16 -0400
commit66bc6ec2791bce9d7e3595b649494d96b3f80893 (patch)
tree4df113e07dfa09143b2039da6ca731a0d0acf1e4
parent98a1bff3935daf96c2140ef19d3b3d4309797e56 (diff)
bcachefs: Add a sysfs attr for triggering discards
We're currently debugging an issue with discards not getting run; this patch adds a manual trigger so we can then watch the tracepoint while it runs. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
-rw-r--r--fs/bcachefs/sysfs.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/bcachefs/sysfs.c b/fs/bcachefs/sysfs.c
index 2594fec4b821..bafc560712ef 100644
--- a/fs/bcachefs/sysfs.c
+++ b/fs/bcachefs/sysfs.c
@@ -150,6 +150,7 @@ do { \
} while (0)
write_attribute(trigger_gc);
+write_attribute(trigger_discards);
write_attribute(prune_cache);
rw_attribute(btree_gc_periodic);
rw_attribute(gc_gens_pos);
@@ -501,6 +502,9 @@ STORE(bch2_fs)
#endif
}
+ if (attr == &sysfs_trigger_discards)
+ bch2_do_discards(c);
+
#ifdef CONFIG_BCACHEFS_TESTS
if (attr == &sysfs_perf_test) {
char *tmp = kstrdup(buf, GFP_KERNEL), *p = tmp;
@@ -568,6 +572,7 @@ struct attribute *bch2_fs_internal_files[] = {
&sysfs_io_timers_write,
&sysfs_trigger_gc,
+ &sysfs_trigger_discards,
&sysfs_prune_cache,
&sysfs_read_realloc_races,