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Diffstat (limited to 'kernel/xloop_file_fmt.c')
-rw-r--r--kernel/xloop_file_fmt.c71
1 files changed, 40 insertions, 31 deletions
diff --git a/kernel/xloop_file_fmt.c b/kernel/xloop_file_fmt.c
index 18672f7..6c4902f 100644
--- a/kernel/xloop_file_fmt.c
+++ b/kernel/xloop_file_fmt.c
@@ -7,10 +7,13 @@
* Copyright (C) 2019 Manuel Bentele <development@manuel-bentele.de>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/module.h>
#include "xloop_file_fmt.h"
+#include "xloop_main.h"
/* storage for all registered file format drivers */
static struct xloop_file_fmt_driver *xloop_file_fmt_drivers[MAX_XLO_FILE_FMT] = {
@@ -29,11 +32,9 @@ int xloop_file_fmt_register_driver(struct xloop_file_fmt_driver *drv)
if (xloop_file_fmt_drivers[drv->file_fmt_type] == NULL) {
xloop_file_fmt_drivers[drv->file_fmt_type] = drv;
- printk(KERN_INFO "xloop_file_fmt: successfully registered file "
- "format driver %s", drv->name);
+ pr_info("successfully registered file format driver %s\n", drv->name);
} else {
- printk(KERN_WARNING "xloop_file_fmt: driver for file format "
- "already registered");
+ pr_warn("driver for file format already registered\n");
ret = -EBUSY;
}
@@ -50,8 +51,7 @@ void xloop_file_fmt_unregister_driver(struct xloop_file_fmt_driver *drv)
return;
xloop_file_fmt_drivers[drv->file_fmt_type] = NULL;
- printk(KERN_INFO "xloop_file_fmt: successfully unregistered file "
- "format driver %s", drv->name);
+ pr_info("successfully unregistered file format driver %s\n", drv->name);
}
EXPORT_SYMBOL(xloop_file_fmt_unregister_driver);
@@ -82,6 +82,13 @@ struct xloop_device *xloop_file_fmt_get_xlo(struct xloop_file_fmt *xlo_fmt)
}
EXPORT_SYMBOL(xloop_file_fmt_get_xlo);
+struct device *xloop_file_fmt_to_dev(struct xloop_file_fmt *xlo_fmt)
+{
+ struct xloop_device *xlo = xloop_file_fmt_get_xlo(xlo_fmt);
+ return xloop_device_to_dev(xlo);
+}
+EXPORT_SYMBOL(xloop_file_fmt_to_dev);
+
int xloop_file_fmt_init(struct xloop_file_fmt *xlo_fmt,
u32 file_fmt_type)
{
@@ -95,25 +102,25 @@ int xloop_file_fmt_init(struct xloop_file_fmt *xlo_fmt,
xlo_fmt->file_fmt_type = file_fmt_type;
if (xlo_fmt->file_fmt_state != file_fmt_uninitialized) {
- printk(KERN_WARNING "xloop_file_fmt: file format is "
- "initialized already");
+ dev_warn(xloop_file_fmt_to_dev(xlo_fmt), "file format is "
+ "initialized already\n");
return -EINVAL;
}
/* check if new file format driver is registered */
if (xloop_file_fmt_drivers[xlo_fmt->file_fmt_type] == NULL) {
- printk(KERN_ERR "xloop_file_fmt: file format driver is not "
- "available");
+ dev_err(xloop_file_fmt_to_dev(xlo_fmt), "file format driver is "
+ "not available\n");
return -ENODEV;
}
- printk(KERN_INFO "xloop_file_fmt: use file format driver %s",
+ dev_info(xloop_file_fmt_to_dev(xlo_fmt), "use file format driver %s\n",
xloop_file_fmt_drivers[xlo_fmt->file_fmt_type]->name);
drv = xloop_file_fmt_drivers[xlo_fmt->file_fmt_type]->owner;
if (!try_module_get(drv)) {
- printk(KERN_ERR "xloop_file_fmt: file format driver %s can not "
- "be accessed",
+ dev_err(xloop_file_fmt_to_dev(xlo_fmt), "file format driver %s can "
+ "not be accessed\n",
xloop_file_fmt_drivers[xlo_fmt->file_fmt_type]->name);
return -ENODEV;
}
@@ -143,8 +150,8 @@ void xloop_file_fmt_exit(struct xloop_file_fmt *xlo_fmt)
struct module *drv;
if (xlo_fmt->file_fmt_state != file_fmt_initialized) {
- printk(KERN_WARNING "xloop_file_fmt: file format is "
- "uninitialized already");
+ dev_warn(xloop_file_fmt_to_dev(xlo_fmt), "file format is "
+ "uninitialized already\n");
return;
}
@@ -166,8 +173,8 @@ int xloop_file_fmt_read(struct xloop_file_fmt *xlo_fmt,
struct xloop_file_fmt_ops *ops;
if (unlikely(xlo_fmt->file_fmt_state != file_fmt_initialized)) {
- printk(KERN_ERR "xloop_file_fmt: file format is "
- "not initialized, can not read");
+ dev_err_ratelimited(xloop_file_fmt_to_dev(xlo_fmt), "file format "
+ "is not initialized, can not read\n");
return -EINVAL;
}
@@ -184,8 +191,8 @@ int xloop_file_fmt_read_aio(struct xloop_file_fmt *xlo_fmt,
struct xloop_file_fmt_ops *ops;
if (unlikely(xlo_fmt->file_fmt_state != file_fmt_initialized)) {
- printk(KERN_ERR "xloop_file_fmt: file format is "
- "not initialized, can not read aio");
+ dev_err_ratelimited(xloop_file_fmt_to_dev(xlo_fmt), "file format "
+ "is not initialized, can not read aio\n");
return -EINVAL;
}
@@ -202,8 +209,8 @@ int xloop_file_fmt_write(struct xloop_file_fmt *xlo_fmt,
struct xloop_file_fmt_ops *ops;
if (unlikely(xlo_fmt->file_fmt_state != file_fmt_initialized)) {
- printk(KERN_ERR "xloop_file_fmt: file format is "
- "not initialized, can not write");
+ dev_err_ratelimited(xloop_file_fmt_to_dev(xlo_fmt), "file format "
+ "is not initialized, can not write\n");
return -EINVAL;
}
@@ -220,8 +227,8 @@ int xloop_file_fmt_write_aio(struct xloop_file_fmt *xlo_fmt,
struct xloop_file_fmt_ops *ops;
if (unlikely(xlo_fmt->file_fmt_state != file_fmt_initialized)) {
- printk(KERN_ERR "xloop_file_fmt: file format is "
- "not initialized, can not write aio");
+ dev_err_ratelimited(xloop_file_fmt_to_dev(xlo_fmt), "file format "
+ "is not initialized, can not write aio\n");
return -EINVAL;
}
@@ -238,8 +245,8 @@ int xloop_file_fmt_write_zeros(struct xloop_file_fmt *xlo_fmt,
struct xloop_file_fmt_ops *ops;
if (unlikely(xlo_fmt->file_fmt_state != file_fmt_initialized)) {
- printk(KERN_ERR "xloop_file_fmt: file format is "
- "not initialized, can not write zeros");
+ dev_err_ratelimited(xloop_file_fmt_to_dev(xlo_fmt), "file format "
+ "is not initialized, can not write zeros\n");
return -EINVAL;
}
@@ -256,8 +263,8 @@ int xloop_file_fmt_discard(struct xloop_file_fmt *xlo_fmt,
struct xloop_file_fmt_ops *ops;
if (unlikely(xlo_fmt->file_fmt_state != file_fmt_initialized)) {
- printk(KERN_ERR "xloop_file_fmt: file format is "
- "not initialized, can not discard");
+ dev_err_ratelimited(xloop_file_fmt_to_dev(xlo_fmt), "file format "
+ "is not initialized, can not discard\n");
return -EINVAL;
}
@@ -273,8 +280,8 @@ int xloop_file_fmt_flush(struct xloop_file_fmt *xlo_fmt)
struct xloop_file_fmt_ops *ops;
if (unlikely(xlo_fmt->file_fmt_state != file_fmt_initialized)) {
- printk(KERN_ERR "xloop_file_fmt: file format is "
- "not initialized, can not flush");
+ dev_err_ratelimited(xloop_file_fmt_to_dev(xlo_fmt), "file format "
+ "is not initialized, can not flush\n");
return -EINVAL;
}
@@ -291,8 +298,8 @@ loff_t xloop_file_fmt_sector_size(struct xloop_file_fmt *xlo_fmt,
struct xloop_file_fmt_ops *ops;
if (unlikely(xlo_fmt->file_fmt_state != file_fmt_initialized)) {
- printk(KERN_ERR "xloop_file_fmt: file format is "
- "not initialized, can not read sector size");
+ dev_err_ratelimited(xloop_file_fmt_to_dev(xlo_fmt), "file format "
+ "is not initialized, can not read sector size\n");
return 0;
}
@@ -309,6 +316,8 @@ int xloop_file_fmt_change(struct xloop_file_fmt *xlo_fmt,
if (file_fmt_type_new > MAX_XLO_FILE_FMT)
return -EINVAL;
+ dev_info(xloop_file_fmt_to_dev(xlo_fmt), "change file format\n");
+
/* Unload the old file format driver if the file format is
* initialized */
if (xlo_fmt->file_fmt_state == file_fmt_initialized)
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-06-02 06:41:05 +0200