diff options
| author | Maxim Patlasov <mpatlasov@parallels.com> | 2012-12-14 16:20:51 +0100 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@suse.cz> | 2013-04-17 21:50:59 +0200 |
| commit | 36cf66ed9f871fc0d0911921fba5873df3ddb2dc (patch) | |
| tree | 8a449efaf4eeb9f0044258d926711d5ebb03416f /fs/fuse/cuse.c | |
| parent | fuse: add support of async IO (diff) | |
| download | linux-36cf66ed9f871fc0d0911921fba5873df3ddb2dc.tar.xz linux-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/cuse.c')
| -rw-r--r-- | fs/fuse/cuse.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c index c59c097eb2e9..b3aaf7b3578b 100644 --- a/fs/fuse/cuse.c +++ b/fs/fuse/cuse.c @@ -92,8 +92,9 @@ static ssize_t cuse_read(struct file *file, char __user *buf, size_t count, { loff_t pos = 0; struct iovec iov = { .iov_base = buf, .iov_len = count }; + struct fuse_io_priv io = { .async = 0, .file = file }; - return fuse_direct_io(file, &iov, 1, count, &pos, 0); + return fuse_direct_io(&io, &iov, 1, count, &pos, 0); } static ssize_t cuse_write(struct file *file, const char __user *buf, @@ -101,12 +102,13 @@ static ssize_t cuse_write(struct file *file, const char __user *buf, { loff_t pos = 0; struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = count }; + struct fuse_io_priv io = { .async = 0, .file = file }; /* * No locking or generic_write_checks(), the server is * responsible for locking and sanity checks. */ - return fuse_direct_io(file, &iov, 1, count, &pos, 1); + return fuse_direct_io(&io, &iov, 1, count, &pos, 1); } static int cuse_open(struct inode *inode, struct file *file) |