forked from luck/tmp_suning_uos_patched
543ade1fc9
This patch cleans up generic_file_*_read/write() interfaces. Christoph Hellwig gave me the idea for this clean ups. In a nutshell, all filesystems should set .aio_read/.aio_write methods and use do_sync_read/ do_sync_write() as their .read/.write methods. This allows us to cleanup all variants of generic_file_* routines. Final available interfaces: generic_file_aio_read() - read handler generic_file_aio_write() - write handler generic_file_aio_write_nolock() - no lock write handler __generic_file_aio_write_nolock() - internal worker routine Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
42 lines
910 B
C
42 lines
910 B
C
/*
|
|
* QNX4 file system, Linux implementation.
|
|
*
|
|
* Version : 0.2.1
|
|
*
|
|
* Using parts of the xiafs filesystem.
|
|
*
|
|
* History :
|
|
*
|
|
* 25-05-1998 by Richard Frowijn : first release.
|
|
* 21-06-1998 by Frank Denis : wrote qnx4_readpage to use generic_file_read.
|
|
* 27-06-1998 by Frank Denis : file overwriting.
|
|
*/
|
|
|
|
#include <linux/fs.h>
|
|
#include <linux/qnx4_fs.h>
|
|
|
|
/*
|
|
* We have mostly NULL's here: the current defaults are ok for
|
|
* the qnx4 filesystem.
|
|
*/
|
|
const struct file_operations qnx4_file_operations =
|
|
{
|
|
.llseek = generic_file_llseek,
|
|
.read = do_sync_read,
|
|
.aio_read = generic_file_aio_read,
|
|
.mmap = generic_file_mmap,
|
|
.sendfile = generic_file_sendfile,
|
|
#ifdef CONFIG_QNX4FS_RW
|
|
.write = do_sync_write,
|
|
.aio_write = generic_file_aio_write,
|
|
.fsync = qnx4_sync_file,
|
|
#endif
|
|
};
|
|
|
|
struct inode_operations qnx4_file_inode_operations =
|
|
{
|
|
#ifdef CONFIG_QNX4FS_RW
|
|
.truncate = qnx4_truncate,
|
|
#endif
|
|
};
|