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[PATCH] Vectorize aio_read/aio_write fileop methods

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This patch vectorizes aio_read() and aio_write() methods to prepare for
collapsing all aio & vectored operations into one interface - which is
aio_read()/aio_write().

Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Michael Holzheu <HOLZHEU@de.ibm.com>
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 23:28:46 -07:00
committed by Linus Torvalds
parent 9ea0f9499d
commit 027445c372
22 changed files with 241 additions and 190 deletions
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15
fs/aio.c
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@@ -15,6 +15,7 @@
#include <linux/aio_abi.h>
#include <linux/module.h>
#include <linux/syscalls.h>
#include <linux/uio.h>
#define DEBUG 0
@@ -1315,8 +1316,11 @@ static ssize_t aio_pread(struct kiocb *iocb)
ssize_t ret = 0;
do {
ret = file->f_op->aio_read(iocb, iocb->ki_buf,
iocb->ki_left, iocb->ki_pos);
iocb->ki_inline_vec.iov_base = iocb->ki_buf;
iocb->ki_inline_vec.iov_len = iocb->ki_left;
ret = file->f_op->aio_read(iocb, &iocb->ki_inline_vec,
1, iocb->ki_pos);
/*
* Can't just depend on iocb->ki_left to determine
* whether we are done. This may have been a short read.
@@ -1349,8 +1353,11 @@ static ssize_t aio_pwrite(struct kiocb *iocb)
ssize_t ret = 0;
do {
ret = file->f_op->aio_write(iocb, iocb->ki_buf,
iocb->ki_left, iocb->ki_pos);
iocb->ki_inline_vec.iov_base = iocb->ki_buf;
iocb->ki_inline_vec.iov_len = iocb->ki_left;
ret = file->f_op->aio_write(iocb, &iocb->ki_inline_vec,
1, iocb->ki_pos);
if (ret > 0) {
iocb->ki_buf += ret;
iocb->ki_left -= ret;