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authorNeilBrown <neilb@suse.de>2021-11-17 07:34:42 +0300
committerJan Kara <jack@suse.cz>2021-11-18 13:52:22 +0300
commitb831281bb929ca6228ab898e1a97bb9284c07036 (patch)
treee72cd234449442607946cd2ff75a48844a87dae5 /fs/reiserfs
parenta48fc69fe6588b48d878d69de223b91a386a7cb4 (diff)
downloadlinux-b831281bb929ca6228ab898e1a97bb9284c07036.tar.xz
reiserfs: don't use congestion_wait()
Block devices do not, in general, report congestion any more, so this congestion_wait() is effectively just a sleep. It isn't entirely clear what is being waited for, but as we only wait when j_async_throttle is elevated, it seems reasonable to stop waiting when j_async_throttle becomes zero - or after the same timeout. So change to use wait_event_event_timeout() for waiting, and wake_up_var() to signal an end to waiting. Link: https://lore.kernel.org/r/163712368225.13692.3419908086400748349@noble.neil.brown.name Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/reiserfs')
-rw-r--r--fs/reiserfs/journal.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 0834b101c316..a3e21160b634 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -951,7 +951,9 @@ static int reiserfs_async_progress_wait(struct super_block *s)
int depth;
depth = reiserfs_write_unlock_nested(s);
- congestion_wait(BLK_RW_ASYNC, HZ / 10);
+ wait_var_event_timeout(&j->j_async_throttle,
+ atomic_read(&j->j_async_throttle) == 0,
+ HZ / 10);
reiserfs_write_lock_nested(s, depth);
}
@@ -1058,7 +1060,8 @@ static int flush_commit_list(struct super_block *s,
put_bh(tbh) ;
}
}
- atomic_dec(&journal->j_async_throttle);
+ if (atomic_dec_and_test(&journal->j_async_throttle))
+ wake_up_var(&journal->j_async_throttle);
for (i = 0; i < (jl->j_len + 1); i++) {
bn = SB_ONDISK_JOURNAL_1st_BLOCK(s) +