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sendfile: convert nfs to using splice_read() 

Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe 2007-06-01 11:51:43 +02:00
parent fd5821404e
commit f0930fffa9
1 changed files with 9 additions and 6 deletions
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15
fs/nfs/file.c
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@ -41,7 +41,9 @@ static int nfs_file_open(struct inode *, struct file *);
static int nfs_file_release(struct inode *, struct file *); static int nfs_file_release(struct inode *, struct file *);
static loff_t nfs_file_llseek(struct file *file, loff_t offset, int origin); static loff_t nfs_file_llseek(struct file *file, loff_t offset, int origin);
static int nfs_file_mmap(struct file *, struct vm_area_struct *); static int nfs_file_mmap(struct file *, struct vm_area_struct *);
static ssize_t nfs_file_sendfile(struct file *, loff_t *, size_t, read_actor_t, void *); static ssize_t nfs_file_splice_read(struct file *filp, loff_t *ppos,
struct pipe_inode_info *pipe,
size_t count, unsigned int flags);
static ssize_t nfs_file_read(struct kiocb *, const struct iovec *iov, static ssize_t nfs_file_read(struct kiocb *, const struct iovec *iov,
unsigned long nr_segs, loff_t pos); unsigned long nr_segs, loff_t pos);
static ssize_t nfs_file_write(struct kiocb *, const struct iovec *iov, static ssize_t nfs_file_write(struct kiocb *, const struct iovec *iov,
@ -65,7 +67,7 @@ const struct file_operations nfs_file_operations = {
.fsync = nfs_fsync, .fsync = nfs_fsync,
.lock = nfs_lock, .lock = nfs_lock,
.flock = nfs_flock, .flock = nfs_flock,
.sendfile = nfs_file_sendfile, .splice_read = nfs_file_splice_read,
.check_flags = nfs_check_flags, .check_flags = nfs_check_flags,
}; };
@ -224,20 +226,21 @@ nfs_file_read(struct kiocb *iocb, const struct iovec *iov,
} }
static ssize_t static ssize_t
nfs_file_sendfile(struct file *filp, loff_t *ppos, size_t count, nfs_file_splice_read(struct file *filp, loff_t *ppos,
read_actor_t actor, void *target) struct pipe_inode_info *pipe, size_t count,
unsigned int flags)
{ {
struct dentry *dentry = filp->f_path.dentry; struct dentry *dentry = filp->f_path.dentry;
struct inode *inode = dentry->d_inode; struct inode *inode = dentry->d_inode;
ssize_t res; ssize_t res;
dfprintk(VFS, "nfs: sendfile(%s/%s, %lu@%Lu)\n", dfprintk(VFS, "nfs: splice_read(%s/%s, %lu@%Lu)\n",
dentry->d_parent->d_name.name, dentry->d_name.name, dentry->d_parent->d_name.name, dentry->d_name.name,
(unsigned long) count, (unsigned long long) *ppos); (unsigned long) count, (unsigned long long) *ppos);
res = nfs_revalidate_mapping(inode, filp->f_mapping); res = nfs_revalidate_mapping(inode, filp->f_mapping);
if (!res) if (!res)
res = generic_file_sendfile(filp, ppos, count, actor, target); res = generic_file_splice_read(filp, ppos, pipe, count, flags);
return res; return res;
} }