diff options
| -rw-r--r-- | fs/fuse/dev.c | 8 | ||||
| -rw-r--r-- | fs/fuse/fuse_i.h | 5 |
2 files changed, 12 insertions, 1 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 3ad22beb24c2..ebc36f525eee 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -224,6 +224,10 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req) fc->blocked = 0; wake_up_all(&fc->blocked_waitq); } + if (fc->num_background == FUSE_CONGESTION_THRESHOLD) { + clear_bdi_congested(&fc->bdi, READ); + clear_bdi_congested(&fc->bdi, WRITE); + } fc->num_background--; } spin_unlock(&fc->lock); @@ -378,6 +382,10 @@ static void request_send_nowait(struct fuse_conn *fc, struct fuse_req *req) fc->num_background++; if (fc->num_background == FUSE_MAX_BACKGROUND) fc->blocked = 1; + if (fc->num_background == FUSE_CONGESTION_THRESHOLD) { + set_bdi_congested(&fc->bdi, READ); + set_bdi_congested(&fc->bdi, WRITE); + } queue_request(fc, req); spin_unlock(&fc->lock); diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index 68ae87cbafab..9f4603beb9e8 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -20,7 +20,10 @@ #define FUSE_MAX_PAGES_PER_REQ 32 /** Maximum number of outstanding background requests */ -#define FUSE_MAX_BACKGROUND 10 +#define FUSE_MAX_BACKGROUND 12 + +/** Congestion starts at 75% of maximum */ +#define FUSE_CONGESTION_THRESHOLD (FUSE_MAX_BACKGROUND * 75 / 100) /** It could be as large as PATH_MAX, but would that have any uses? */ #define FUSE_NAME_MAX 1024 |