Commit bdae2a7e authored by Kent Overstreet's avatar Kent Overstreet
Browse files

bcachefs: sysfs internal/trigger_journal_flush 



Add a sysfs knob for immediately flushing the entire journal.

Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
parent e879389f

fs/bcachefs/sysfs.c

+10 −1
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ 
#include "ec.h"

#include "inode.h"

#include "journal.h"

#include "journal_reclaim.h"

#include "keylist.h"

#include "move.h"

#include "movinggc.h"
@@ -138,6 +139,7 @@ do { \ 
write_attribute(trigger_gc);

write_attribute(trigger_discards);

write_attribute(trigger_invalidates);

write_attribute(trigger_journal_flush);

write_attribute(prune_cache);

write_attribute(btree_wakeup);

rw_attribute(btree_gc_periodic);
@@ -500,7 +502,7 @@ STORE(bch2_fs) 


	/* Debugging: */



	if (!test_bit(BCH_FS_rw, &c->flags))

	if (!bch2_write_ref_tryget(c, BCH_WRITE_REF_sysfs))

		return -EROFS;



	if (attr == &sysfs_prune_cache) {
@@ -533,6 +535,11 @@ STORE(bch2_fs) 
	if (attr == &sysfs_trigger_invalidates)

		bch2_do_invalidates(c);



	if (attr == &sysfs_trigger_journal_flush) {

		bch2_journal_flush_all_pins(&c->journal);

		bch2_journal_meta(&c->journal);

	}



#ifdef CONFIG_BCACHEFS_TESTS

	if (attr == &sysfs_perf_test) {

		char *tmp = kstrdup(buf, GFP_KERNEL), *p = tmp;
@@ -553,6 +560,7 @@ STORE(bch2_fs) 
			size = ret;

	}

#endif

	bch2_write_ref_put(c, BCH_WRITE_REF_sysfs);

	return size;

}

SYSFS_OPS(bch2_fs);
@@ -651,6 +659,7 @@ struct attribute *bch2_fs_internal_files[] = { 
	&sysfs_trigger_gc,

	&sysfs_trigger_discards,

	&sysfs_trigger_invalidates,

	&sysfs_trigger_journal_flush,

	&sysfs_prune_cache,

	&sysfs_btree_wakeup,