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authorBadari Pulavarty <pbadari@us.ibm.com>2006-09-30 23:28:46 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-01 00:39:28 -0700
commit027445c37282bc1ed26add45e573ad2d3e4860a5 (patch)
tree93eab101a938ffebaea64703033c8649df4d73f0 /arch/s390/hypfs
parent9ea0f9499d15c49df23e7aac4332d830c40e12d0 (diff)
downloadlinux-2.6.34-ux500-027445c37282bc1ed26add45e573ad2d3e4860a5.tar.gz
[PATCH] Vectorize aio_read/aio_write fileop methods
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>
Diffstat (limited to 'arch/s390/hypfs')
-rw-r--r--arch/s390/hypfs/inode.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 813fc21358f..cd702ae45d6 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -134,12 +134,20 @@ static int hypfs_open(struct inode *inode, struct file *filp)
return 0;
}
-static ssize_t hypfs_aio_read(struct kiocb *iocb, __user char *buf,
- size_t count, loff_t offset)
+static ssize_t hypfs_aio_read(struct kiocb *iocb, const struct iovec *iov,
+ unsigned long nr_segs, loff_t offset)
{
char *data;
size_t len;
struct file *filp = iocb->ki_filp;
+ /* XXX: temporary */
+ char __user *buf = iov[0].iov_base;
+ size_t count = iov[0].iov_len;
+
+ if (nr_segs != 1) {
+ count = -EINVAL;
+ goto out;
+ }
data = filp->private_data;
len = strlen(data);
@@ -158,12 +166,13 @@ static ssize_t hypfs_aio_read(struct kiocb *iocb, __user char *buf,
out:
return count;
}
-static ssize_t hypfs_aio_write(struct kiocb *iocb, const char __user *buf,
- size_t count, loff_t pos)
+static ssize_t hypfs_aio_write(struct kiocb *iocb, const struct iovec *iov,
+ unsigned long nr_segs, loff_t offset)
{
int rc;
struct super_block *sb;
struct hypfs_sb_info *fs_info;
+ size_t count = iov_length(iov, nr_segs);
sb = iocb->ki_filp->f_dentry->d_inode->i_sb;
fs_info = sb->s_fs_info;