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[PATCH] Streamline generic_file_* interfaces and filemap cleanups

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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>
This commit is contained in:
Badari Pulavarty
2006-09-30 23:28:48 -07:00
committed by Linus Torvalds
parent ee0b3e671b
commit 543ade1fc9
27 changed files with 105 additions and 165 deletions
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15
drivers/char/raw.c
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@ -238,21 +238,10 @@ out:
return err;
}
static ssize_t raw_file_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
struct iovec local_iov = {
.iov_base = (char __user *)buf,
.iov_len = count
};
return generic_file_write_nolock(file, &local_iov, 1, ppos);
}
static const struct file_operations raw_fops = {
.read = generic_file_read,
.read = do_sync_read,
.aio_read = generic_file_aio_read,
.write = raw_file_write,
.write = do_sync_write,
.aio_write = generic_file_aio_write_nolock,
.open = raw_open,
.release= raw_release,