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| author | Maxim Patlasov <mpatlasov@parallels.com> | 2012-12-14 19:20:51 +0400 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@suse.cz> | 2013-04-17 21:50:59 +0200 |
| commit | 36cf66ed9f871fc0d0911921fba5873df3ddb2dc (patch) | |
| tree | 8a449efaf4eeb9f0044258d926711d5ebb03416f /fs/fuse/fuse_i.h | |
| parent | 01e9d11a3e79035ca5cd89b035435acd4ba61ee1 (diff) | |
| download | lwn-36cf66ed9f871fc0d0911921fba5873df3ddb2dc.tar.gz lwn-36cf66ed9f871fc0d0911921fba5873df3ddb2dc.zip | |
fuse: make fuse_direct_io() aware about AIO
The patch implements passing "struct fuse_io_priv *io" down the stack up to
fuse_send_read/write where it is used to submit request asynchronously.
io->async==0 designates synchronous processing.
Non-trivial part of the patch is changes in fuse_direct_io(): resources
like fuse requests and user pages cannot be released immediately in async
case.
Signed-off-by: Maxim Patlasov <mpatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'fs/fuse/fuse_i.h')
| -rw-r--r-- | fs/fuse/fuse_i.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index aea072413c47..337169a406c9 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -732,6 +732,11 @@ struct fuse_req *fuse_get_req(struct fuse_conn *fc, unsigned npages); struct fuse_req *fuse_get_req_for_background(struct fuse_conn *fc, unsigned npages); +/* + * Increment reference count on request + */ +void __fuse_get_request(struct fuse_req *req); + /** * Get a request, may fail with -ENOMEM, * useful for callers who doesn't use req->pages[] @@ -846,7 +851,7 @@ int fuse_reverse_inval_entry(struct super_block *sb, u64 parent_nodeid, int fuse_do_open(struct fuse_conn *fc, u64 nodeid, struct file *file, bool isdir); -ssize_t fuse_direct_io(struct file *file, const struct iovec *iov, +ssize_t fuse_direct_io(struct fuse_io_priv *io, const struct iovec *iov, unsigned long nr_segs, size_t count, loff_t *ppos, int write); long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg, |