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| author | Miklos Szeredi <mszeredi@redhat.com> | 2017-09-12 16:57:53 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2017-09-12 16:57:53 +0200 |
| commit | e1c0eecba1a4154c35c400f1cc9a035e6246bbcd (patch) | |
| tree | c13747b8adb3435b46c1c65647d5f7ab173cc0a7 /fs/fuse/cuse.c | |
| parent | 5d6d3a301c4e749e04be6fcdcf4cb1ffa8bae524 (diff) | |
| download | op-kernel-dev-e1c0eecba1a4154c35c400f1cc9a035e6246bbcd.zip op-kernel-dev-e1c0eecba1a4154c35c400f1cc9a035e6246bbcd.tar.gz | |
fuse: honor iocb sync flags on write
If the IOCB_DSYNC flag is set a sync is not being performed by
fuse_file_write_iter.
Honor IOCB_DSYNC/IOCB_SYNC by setting O_DYSNC/O_SYNC respectively in the
flags filed of the write request.
We don't need to sync data or metadata, since fuse_perform_write() does
write-through and the filesystem is responsible for updating file times.
Original patch by Vitaly Zolotusky.
Reported-by: Nate Clark <nate@neworld.us>
Cc: Vitaly Zolotusky <vitaly@unitc.com>.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/fuse/cuse.c')
| -rw-r--r-- | fs/fuse/cuse.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c index c5b6b71..e9e9780 100644 --- a/fs/fuse/cuse.c +++ b/fs/fuse/cuse.c @@ -90,7 +90,7 @@ static struct list_head *cuse_conntbl_head(dev_t devt) static ssize_t cuse_read_iter(struct kiocb *kiocb, struct iov_iter *to) { - struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(kiocb->ki_filp); + struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(kiocb); loff_t pos = 0; return fuse_direct_io(&io, to, &pos, FUSE_DIO_CUSE); @@ -98,7 +98,7 @@ static ssize_t cuse_read_iter(struct kiocb *kiocb, struct iov_iter *to) static ssize_t cuse_write_iter(struct kiocb *kiocb, struct iov_iter *from) { - struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(kiocb->ki_filp); + struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(kiocb); loff_t pos = 0; /* * No locking or generic_write_checks(), the server is |
