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bcachefs: sysfs internal/trigger_journal_flush

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Add a sysfs knob for immediately flushing the entire journal.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-04-13 22:43:11 -04:00
parent e879389f57
commit bdae2a7e60
1 changed files with 10 additions and 1 deletions
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11
fs/bcachefs/sysfs.c
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@ -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,