diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/llite/file.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/llite/file.c | 112 |
1 files changed, 19 insertions, 93 deletions
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index c4ddec2b3589..716e1ee0104f 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -1114,9 +1114,7 @@ restart: switch (vio->cui_io_subtype) { case IO_NORMAL: - cio->cui_iov = args->u.normal.via_iov; - cio->cui_nrsegs = args->u.normal.via_nrsegs; - cio->cui_tot_nrsegs = cio->cui_nrsegs; + cio->cui_iter = args->u.normal.via_iter; cio->cui_iocb = args->u.normal.via_iocb; if ((iot == CIT_WRITE) && !(cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) { @@ -1180,58 +1178,23 @@ out: return result; } -static ssize_t ll_file_aio_read(struct kiocb *iocb, const struct iovec *iov, - unsigned long nr_segs, loff_t pos) +static ssize_t ll_file_read_iter(struct kiocb *iocb, struct iov_iter *to) { struct lu_env *env; struct vvp_io_args *args; - size_t count = 0; ssize_t result; int refcheck; - result = generic_segment_checks(iov, &nr_segs, &count, VERIFY_WRITE); - if (result) - return result; - env = cl_env_get(&refcheck); if (IS_ERR(env)) return PTR_ERR(env); args = vvp_env_args(env, IO_NORMAL); - args->u.normal.via_iov = (struct iovec *)iov; - args->u.normal.via_nrsegs = nr_segs; + args->u.normal.via_iter = to; args->u.normal.via_iocb = iocb; result = ll_file_io_generic(env, args, iocb->ki_filp, CIT_READ, - &iocb->ki_pos, count); - cl_env_put(env, &refcheck); - return result; -} - -static ssize_t ll_file_read(struct file *file, char *buf, size_t count, - loff_t *ppos) -{ - struct lu_env *env; - struct iovec *local_iov; - struct kiocb *kiocb; - ssize_t result; - int refcheck; - - env = cl_env_get(&refcheck); - if (IS_ERR(env)) - return PTR_ERR(env); - - local_iov = &vvp_env_info(env)->vti_local_iov; - kiocb = &vvp_env_info(env)->vti_kiocb; - local_iov->iov_base = (void __user *)buf; - local_iov->iov_len = count; - init_sync_kiocb(kiocb, file); - kiocb->ki_pos = *ppos; - kiocb->ki_nbytes = count; - - result = ll_file_aio_read(kiocb, local_iov, 1, kiocb->ki_pos); - *ppos = kiocb->ki_pos; - + &iocb->ki_pos, iov_iter_count(to)); cl_env_put(env, &refcheck); return result; } @@ -1239,64 +1202,27 @@ static ssize_t ll_file_read(struct file *file, char *buf, size_t count, /* * Write to a file (through the page cache). */ -static ssize_t ll_file_aio_write(struct kiocb *iocb, const struct iovec *iov, - unsigned long nr_segs, loff_t pos) +static ssize_t ll_file_write_iter(struct kiocb *iocb, struct iov_iter *from) { struct lu_env *env; struct vvp_io_args *args; - size_t count = 0; ssize_t result; int refcheck; - result = generic_segment_checks(iov, &nr_segs, &count, VERIFY_READ); - if (result) - return result; - env = cl_env_get(&refcheck); if (IS_ERR(env)) return PTR_ERR(env); args = vvp_env_args(env, IO_NORMAL); - args->u.normal.via_iov = (struct iovec *)iov; - args->u.normal.via_nrsegs = nr_segs; + args->u.normal.via_iter = from; args->u.normal.via_iocb = iocb; result = ll_file_io_generic(env, args, iocb->ki_filp, CIT_WRITE, - &iocb->ki_pos, count); + &iocb->ki_pos, iov_iter_count(from)); cl_env_put(env, &refcheck); return result; } -static ssize_t ll_file_write(struct file *file, const char *buf, size_t count, - loff_t *ppos) -{ - struct lu_env *env; - struct iovec *local_iov; - struct kiocb *kiocb; - ssize_t result; - int refcheck; - - env = cl_env_get(&refcheck); - if (IS_ERR(env)) - return PTR_ERR(env); - - local_iov = &vvp_env_info(env)->vti_local_iov; - kiocb = &vvp_env_info(env)->vti_kiocb; - local_iov->iov_base = (void __user *)buf; - local_iov->iov_len = count; - init_sync_kiocb(kiocb, file); - kiocb->ki_pos = *ppos; - kiocb->ki_nbytes = count; - - result = ll_file_aio_write(kiocb, local_iov, 1, kiocb->ki_pos); - *ppos = kiocb->ki_pos; - - cl_env_put(env, &refcheck); - return result; -} - - - /* * Send file content (through pagecache) somewhere with helper */ @@ -3143,10 +3069,10 @@ int ll_inode_permission(struct inode *inode, int mask) /* -o localflock - only provides locally consistent flock locks */ struct file_operations ll_file_operations = { - .read = ll_file_read, - .aio_read = ll_file_aio_read, - .write = ll_file_write, - .aio_write = ll_file_aio_write, + .read = new_sync_read, + .read_iter = ll_file_read_iter, + .write = new_sync_write, + .write_iter = ll_file_write_iter, .unlocked_ioctl = ll_file_ioctl, .open = ll_file_open, .release = ll_file_release, @@ -3158,10 +3084,10 @@ struct file_operations ll_file_operations = { }; struct file_operations ll_file_operations_flock = { - .read = ll_file_read, - .aio_read = ll_file_aio_read, - .write = ll_file_write, - .aio_write = ll_file_aio_write, + .read = new_sync_read, + .read_iter = ll_file_read_iter, + .write = new_sync_write, + .write_iter = ll_file_write_iter, .unlocked_ioctl = ll_file_ioctl, .open = ll_file_open, .release = ll_file_release, @@ -3176,10 +3102,10 @@ struct file_operations ll_file_operations_flock = { /* These are for -o noflock - to return ENOSYS on flock calls */ struct file_operations ll_file_operations_noflock = { - .read = ll_file_read, - .aio_read = ll_file_aio_read, - .write = ll_file_write, - .aio_write = ll_file_aio_write, + .read = new_sync_read, + .read_iter = ll_file_read_iter, + .write = new_sync_write, + .write_iter = ll_file_write_iter, .unlocked_ioctl = ll_file_ioctl, .open = ll_file_open, .release = ll_file_release, |