A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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Merge branch 'iocb' into for-next

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This commit is contained in:
Al Viro 2015-04-11 22:24:41 -04:00
commit c0fec3a98b
68 changed files with 201 additions and 271 deletions
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2
fs/fuse/cuse.c
View file

@ -38,7 +38,6 @@
#include <linux/device.h>
#include <linux/file.h>
#include <linux/fs.h>
#include <linux/aio.h>
#include <linux/kdev_t.h>
#include <linux/kthread.h>
#include <linux/list.h>
@ -48,6 +47,7 @@
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/module.h>
#include <linux/uio.h>
#include "fuse_i.h"

1
fs/fuse/dev.c
View file

@ -19,7 +19,6 @@
#include <linux/pipe_fs_i.h>
#include <linux/swap.h>
#include <linux/splice.h>
#include <linux/aio.h>
MODULE_ALIAS_MISCDEV(FUSE_MINOR);
MODULE_ALIAS("devname:fuse");

55
fs/fuse/file.c
View file

@ -15,8 +15,8 @@
#include <linux/module.h>
#include <linux/compat.h>
#include <linux/swap.h>
#include <linux/aio.h>
#include <linux/falloc.h>
#include <linux/uio.h>
static const struct file_operations fuse_direct_io_file_operations;
@ -528,6 +528,17 @@ static void fuse_release_user_pages(struct fuse_req *req, int write)
}
}
static ssize_t fuse_get_res_by_io(struct fuse_io_priv *io)
{
if (io->err)
return io->err;
if (io->bytes >= 0 && io->write)
return -EIO;
return io->bytes < 0 ? io->size : io->bytes;
}
/**
* In case of short read, the caller sets 'pos' to the position of
* actual end of fuse request in IO request. Otherwise, if bytes_requested
@ -546,6 +557,7 @@ static void fuse_release_user_pages(struct fuse_req *req, int write)
*/
static void fuse_aio_complete(struct fuse_io_priv *io, int err, ssize_t pos)
{
bool is_sync = is_sync_kiocb(io->iocb);
int left;
spin_lock(&io->lock);
@ -555,30 +567,24 @@ static void fuse_aio_complete(struct fuse_io_priv *io, int err, ssize_t pos)
io->bytes = pos;
left = --io->reqs;
if (!left && is_sync)
complete(io->done);
spin_unlock(&io->lock);
if (!left) {
long res;
if (!left && !is_sync) {
ssize_t res = fuse_get_res_by_io(io);
if (io->err)
res = io->err;
else if (io->bytes >= 0 && io->write)
res = -EIO;
else {
res = io->bytes < 0 ? io->size : io->bytes;
if (res >= 0) {
struct inode *inode = file_inode(io->iocb->ki_filp);
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
if (!is_sync_kiocb(io->iocb)) {
struct inode *inode = file_inode(io->iocb->ki_filp);
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
spin_lock(&fc->lock);
fi->attr_version = ++fc->attr_version;
spin_unlock(&fc->lock);
}
spin_lock(&fc->lock);
fi->attr_version = ++fc->attr_version;
spin_unlock(&fc->lock);
}
aio_complete(io->iocb, res, 0);
io->iocb->ki_complete(io->iocb, res, 0);
kfree(io);
}
}
@ -2801,6 +2807,7 @@ static ssize_t
fuse_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter,
loff_t offset)
{
DECLARE_COMPLETION_ONSTACK(wait);
ssize_t ret = 0;
struct file *file = iocb->ki_filp;
struct fuse_file *ff = file->private_data;
@ -2852,6 +2859,9 @@ fuse_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter,
if (!is_sync_kiocb(iocb) && (offset + count > i_size) && rw == WRITE)
io->async = false;
if (io->async && is_sync_kiocb(iocb))
io->done = &wait;
if (rw == WRITE)
ret = __fuse_direct_write(io, iter, &pos);
else
@ -2864,11 +2874,12 @@ fuse_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter,
if (!is_sync_kiocb(iocb))
return -EIOCBQUEUED;
ret = wait_on_sync_kiocb(iocb);
} else {
kfree(io);
wait_for_completion(&wait);
ret = fuse_get_res_by_io(io);
}
kfree(io);
if (rw == WRITE) {
if (ret > 0)
fuse_write_update_size(inode, pos);

1
fs/fuse/fuse_i.h
View file

@ -263,6 +263,7 @@ struct fuse_io_priv {
int err;
struct kiocb *iocb;
struct file *file;
struct completion *done;
};
/**