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| author | Long Li <longli@microsoft.com> | 2018-10-31 22:13:09 +0000 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2018-11-02 14:09:41 -0500 |
| commit | 6e6e2b86c29c6fcfa16ad9fdc7ea32027bea5d73 (patch) | |
| tree | 1c1c63c0f8191fe88291fe6de8acd341e68bc608 /fs/cifs/cifsfs.h | |
| parent | 0df444a00f32a3ab4d37c3c101bb960ee38a9617 (diff) | |
| download | linux-6e6e2b86c29c6fcfa16ad9fdc7ea32027bea5d73.tar.gz linux-6e6e2b86c29c6fcfa16ad9fdc7ea32027bea5d73.tar.bz2 linux-6e6e2b86c29c6fcfa16ad9fdc7ea32027bea5d73.zip | |
CIFS: Add support for direct I/O read
With direct I/O read, we transfer the data directly from transport layer to
the user data buffer.
Change in v3: add support for kernel AIO
Change in v4:
Refactor common read code to __cifs_readv for direct and non-direct I/O.
Retry on direct I/O failure.
Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/cifsfs.h')
| -rw-r--r-- | fs/cifs/cifsfs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index 24e265a51874..3abea1a3f20c 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -101,6 +101,7 @@ extern int cifs_open(struct inode *inode, struct file *file); extern int cifs_close(struct inode *inode, struct file *file); extern int cifs_closedir(struct inode *inode, struct file *file); extern ssize_t cifs_user_readv(struct kiocb *iocb, struct iov_iter *to); +extern ssize_t cifs_direct_readv(struct kiocb *iocb, struct iov_iter *to); extern ssize_t cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to); extern ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from); extern ssize_t cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from); |