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authorVivek Goyal <vgoyal@redhat.com>2019-06-05 15:50:43 -0400
committerMiklos Szeredi <mszeredi@redhat.com>2019-09-12 14:59:40 +0200
commit4388c5aac4bae5c83a2c66882043942002ba09a2 (patch)
treee57b579948968968447508ad7747ff644b9b89c7 /fs
parent79d96efffda7597b41968d5d8813b39fc2965f1b (diff)
downloadlinux-4388c5aac4bae5c83a2c66882043942002ba09a2.tar.bz2
fuse: export fuse_dequeue_forget() function
File systems like virtio-fs need to 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 <vgoyal@redhat.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/fuse/dev.c13
-rw-r--r--fs/fuse/fuse_i.h4
2 files changed, 11 insertions, 6 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 151176a99dc2..943bc5cf941a 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1033,9 +1033,9 @@ __releases(fiq->lock)
return err ? err : reqsize;
}
-static struct fuse_forget_link *dequeue_forget(struct fuse_iqueue *fiq,
- unsigned max,
- unsigned *countp)
+struct fuse_forget_link *fuse_dequeue_forget(struct fuse_iqueue *fiq,
+ unsigned int max,
+ unsigned int *countp)
{
struct fuse_forget_link *head = fiq->forget_list_head.next;
struct fuse_forget_link **newhead = &head;
@@ -1054,6 +1054,7 @@ 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,
@@ -1061,7 +1062,7 @@ 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,
};
@@ -1109,7 +1110,7 @@ __releases(fiq->lock)
}
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;
@@ -2119,7 +2120,7 @@ void fuse_abort_conn(struct fuse_conn *fc)
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 b868b71d47d9..5f910c99e8dd 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -729,6 +729,10 @@ 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 int max,
+ unsigned int *countp);
+
/*
* Initialize READ or READDIR request
*/