linux/fs/qnx4/file.c
Badari Pulavarty 543ade1fc9 [PATCH] Streamline generic_file_* interfaces and filemap cleanups
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>
2006-10-01 00:39:28 -07:00

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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
};