From 09db4841303af94be7bcb55977a99eda3a8dadd5 Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Fri, 31 May 2019 14:57:07 -0400 Subject: [PATCH 1841/2944] fuse: Export fuse_dequeue_forget() function task #28910367 commit 4388c5aac4bae5c83a2c66882043942002ba09a2 upstream stacked file systems like virtio-fs do not have to play directly with forget list data structures. There is a helper function use that instead. Rename dequeue_forget() to fuse_dequeue_forget() and export it so that stacked filesystems can use it. Signed-off-by: Vivek Goyal Signed-off-by: Liu Bo Reviewed-by: Joseph Qi --- fs/fuse/dev.c | 9 +++++---- fs/fuse/fuse_i.h | 3 +++ 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 8d96ea2..c3d39e3 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -1138,7 +1138,7 @@ static int fuse_read_interrupt(struct fuse_iqueue *fiq, return err ? err : reqsize; } -static struct fuse_forget_link *dequeue_forget(struct fuse_iqueue *fiq, +struct fuse_forget_link *fuse_dequeue_forget(struct fuse_iqueue *fiq, unsigned max, unsigned *countp) { @@ -1159,6 +1159,7 @@ static struct fuse_forget_link *dequeue_forget(struct fuse_iqueue *fiq, return head; } +EXPORT_SYMBOL(fuse_dequeue_forget); static int fuse_read_single_forget(struct fuse_iqueue *fiq, struct fuse_copy_state *cs, @@ -1166,7 +1167,7 @@ static int fuse_read_single_forget(struct fuse_iqueue *fiq, __releases(fiq->lock) { int err; - struct fuse_forget_link *forget = dequeue_forget(fiq, 1, NULL); + struct fuse_forget_link *forget = fuse_dequeue_forget(fiq, 1, NULL); struct fuse_forget_in arg = { .nlookup = forget->forget_one.nlookup, }; @@ -1214,7 +1215,7 @@ static int fuse_read_batch_forget(struct fuse_iqueue *fiq, } max_forgets = (nbytes - ih.len) / sizeof(struct fuse_forget_one); - head = dequeue_forget(fiq, max_forgets, &count); + head = fuse_dequeue_forget(fiq, max_forgets, &count); spin_unlock(&fiq->lock); arg.count = count; @@ -2182,7 +2183,7 @@ void fuse_abort_conn(struct fuse_conn *fc, bool is_abort) clear_bit(FR_PENDING, &req->flags); list_splice_tail_init(&fiq->pending, &to_end); while (forget_pending(fiq)) - kfree(dequeue_forget(fiq, 1, NULL)); + kfree(fuse_dequeue_forget(fiq, 1, NULL)); wake_up_all(&fiq->waitq); spin_unlock(&fiq->lock); kill_fasync(&fiq->fasync, SIGIO, POLL_IN); diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index b151f23..663eea4 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -784,6 +784,9 @@ void fuse_queue_forget(struct fuse_conn *fc, struct fuse_forget_link *forget, struct fuse_forget_link *fuse_alloc_forget(void); +struct fuse_forget_link *fuse_dequeue_forget(struct fuse_iqueue *fiq, + unsigned max, unsigned *countp); + /* Used by READDIRPLUS */ void fuse_force_forget(struct file *file, u64 nodeid); -- 1.8.3.1