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authorAl Viro <viro@zeniv.linux.org.uk>2015-04-03 10:58:11 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2015-04-11 22:28:52 -0400
commitc12c49e70218ed1bde28fc8182ac274889d15b9d (patch)
tree5ba0bf9b799703a5db4c969c1de311652ba231cf /fs/coda
parent274a48869b26c53c641f146b312486e1693f4d61 (diff)
downloadlinux-stericsson-c12c49e70218ed1bde28fc8182ac274889d15b9d.tar.gz
coda: switch to ->read_iter/->write_iter
... and request the same from the local cache - all filesystems with anything usable for that support those already. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/coda')
-rw-r--r--fs/coda/file.c40
1 files changed, 15 insertions, 25 deletions
diff --git a/fs/coda/file.c b/fs/coda/file.c
index d244d743a232..d9f1d9a85e04 100644
--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -27,19 +27,14 @@
#include "coda_int.h"
static ssize_t
-coda_file_read(struct file *coda_file, char __user *buf, size_t count, loff_t *ppos)
+coda_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
{
- struct coda_file_info *cfi;
- struct file *host_file;
+ struct file *coda_file = iocb->ki_filp;
+ struct coda_file_info *cfi = CODA_FTOC(coda_file);
- cfi = CODA_FTOC(coda_file);
BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
- host_file = cfi->cfi_container;
- if (!host_file->f_op->read)
- return -EINVAL;
-
- return host_file->f_op->read(host_file, buf, count, ppos);
+ return vfs_iter_read(cfi->cfi_container, to, &iocb->ki_pos);
}
static ssize_t
@@ -64,32 +59,25 @@ coda_file_splice_read(struct file *coda_file, loff_t *ppos,
}
static ssize_t
-coda_file_write(struct file *coda_file, const char __user *buf, size_t count, loff_t *ppos)
+coda_file_write_iter(struct kiocb *iocb, struct iov_iter *to)
{
- struct inode *host_inode, *coda_inode = file_inode(coda_file);
- struct coda_file_info *cfi;
+ struct file *coda_file = iocb->ki_filp;
+ struct inode *coda_inode = file_inode(coda_file);
+ struct coda_file_info *cfi = CODA_FTOC(coda_file);
struct file *host_file;
ssize_t ret;
- cfi = CODA_FTOC(coda_file);
BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
- host_file = cfi->cfi_container;
-
- if (!host_file->f_op->write)
- return -EINVAL;
- host_inode = file_inode(host_file);
+ host_file = cfi->cfi_container;
file_start_write(host_file);
mutex_lock(&coda_inode->i_mutex);
-
- ret = host_file->f_op->write(host_file, buf, count, ppos);
-
- coda_inode->i_size = host_inode->i_size;
+ ret = vfs_iter_write(cfi->cfi_container, to, &iocb->ki_pos);
+ coda_inode->i_size = file_inode(host_file)->i_size;
coda_inode->i_blocks = (coda_inode->i_size + 511) >> 9;
coda_inode->i_mtime = coda_inode->i_ctime = CURRENT_TIME_SEC;
mutex_unlock(&coda_inode->i_mutex);
file_end_write(host_file);
-
return ret;
}
@@ -231,8 +219,10 @@ int coda_fsync(struct file *coda_file, loff_t start, loff_t end, int datasync)
const struct file_operations coda_file_operations = {
.llseek = generic_file_llseek,
- .read = coda_file_read,
- .write = coda_file_write,
+ .read = new_sync_read,
+ .write = new_sync_write,
+ .read_iter = coda_file_read_iter,
+ .write_iter = coda_file_write_iter,
.mmap = coda_file_mmap,
.open = coda_open,
.release = coda_release,