Module: xenomai-forge
Branch: master
Commit: 420cb0c12bd9d0b428b208cf2dced9cedfec456c
URL:
http://git.xenomai.org/?p=xenomai-forge.git;a=commit;h=420cb0c12bd9d0b428b208cf2dced9cedfec456c
Author: Jan Kiszka <jan.kis...@siemens.com>
Date: Wed Aug 21 09:02:01 2013 +0200
cobalt/vfile: Adjust procfs usage to latest kernel API
proc_dir_entry became opaque and create_proc_entry is gone now. Switch
to the new patterns and wrap PDE_DATA as well as proc_create_data for
older kernels.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
.../cobalt/include/asm-generic/xenomai/wrappers.h | 11 +++++++
kernel/cobalt/vfile.c | 32 +++++++------------
2 files changed, 23 insertions(+), 20 deletions(-)
diff --git a/kernel/cobalt/include/asm-generic/xenomai/wrappers.h
b/kernel/cobalt/include/asm-generic/xenomai/wrappers.h
index 02eeed0..601fc30 100644
--- a/kernel/cobalt/include/asm-generic/xenomai/wrappers.h
+++ b/kernel/cobalt/include/asm-generic/xenomai/wrappers.h
@@ -72,5 +72,16 @@ unsigned long vm_mmap(struct file *file, unsigned long addr,
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)
#include <linux/sched/rt.h>
#endif /* LINUX >= 3.9.0 */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0)
+#include <linux/proc_fs.h>
+
+#define PDE_DATA(inode) PROC_I(inode)->pde->data
+
+static inline void proc_remove(struct proc_dir_entry *pde)
+{
+ remove_proc_entry(pde->name, pde->parent);
+}
+#endif /* < 3.10 */
#endif /* _COBALT_ASM_GENERIC_WRAPPERS_H */
diff --git a/kernel/cobalt/vfile.c b/kernel/cobalt/vfile.c
index 6907f2e..375cc79 100644
--- a/kernel/cobalt/vfile.c
+++ b/kernel/cobalt/vfile.c
@@ -79,6 +79,7 @@
#include <cobalt/kernel/lock.h>
#include <cobalt/kernel/assert.h>
#include <cobalt/kernel/vfile.h>
+#include <asm/xenomai/wrappers.h>
/**
* @var struct xnvfile_directory nkvfroot
@@ -148,8 +149,7 @@ static void vfile_snapshot_free(struct
xnvfile_snapshot_iterator *it, void *buf)
static int vfile_snapshot_open(struct inode *inode, struct file *file)
{
- struct proc_dir_entry *pde = PDE(inode);
- struct xnvfile_snapshot *vfile = pde->data;
+ struct xnvfile_snapshot *vfile = PDE_DATA(inode);
struct xnvfile_snapshot_ops *ops = vfile->ops;
struct xnvfile_snapshot_iterator *it;
int revtag, ret, nrdata;
@@ -318,8 +318,8 @@ static int vfile_snapshot_release(struct inode *inode,
struct file *file)
ssize_t vfile_snapshot_write(struct file *file, const char __user *buf,
size_t size, loff_t *ppos)
{
- struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
- struct xnvfile_snapshot *vfile = pde->data;
+ struct xnvfile_snapshot *vfile =
+ PDE_DATA(file->f_path.dentry->d_inode);
struct xnvfile_input input;
ssize_t ret;
@@ -414,12 +414,10 @@ int xnvfile_init_snapshot(const char *name,
mode = vfile->ops->store ? 0644 : 0444;
ppde = parent->entry.pde;
- pde = create_proc_entry(name, mode, ppde);
+ pde = proc_create_data(name, mode, ppde, &vfile_snapshot_fops, vfile);
if (pde == NULL)
return -ENOMEM;
- pde->proc_fops = &vfile_snapshot_fops;
- pde->data = vfile;
vfile->entry.parent = parent;
vfile->entry.pde = pde;
@@ -505,8 +503,7 @@ static struct seq_operations vfile_regular_ops = {
static int vfile_regular_open(struct inode *inode, struct file *file)
{
- struct proc_dir_entry *pde = PDE(inode);
- struct xnvfile_regular *vfile = pde->data;
+ struct xnvfile_regular *vfile = PDE_DATA(inode);
struct xnvfile_regular_ops *ops = vfile->ops;
struct xnvfile_regular_iterator *it;
struct seq_file *seq;
@@ -574,8 +571,8 @@ static int vfile_regular_release(struct inode *inode,
struct file *file)
ssize_t vfile_regular_write(struct file *file, const char __user *buf,
size_t size, loff_t *ppos)
{
- struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
- struct xnvfile_regular *vfile = pde->data;
+ struct xnvfile_regular *vfile =
+ PDE_DATA(file->f_path.dentry->d_inode);
struct xnvfile_input input;
ssize_t ret;
@@ -650,12 +647,10 @@ int xnvfile_init_regular(const char *name,
mode = vfile->ops->store ? 0644 : 0444;
ppde = parent->entry.pde;
- pde = create_proc_entry(name, mode, ppde);
+ pde = proc_create_data(name, mode, ppde, &vfile_regular_fops, vfile);
if (pde == NULL)
return -ENOMEM;
- pde->proc_fops = &vfile_regular_fops;
- pde->data = vfile;
vfile->entry.parent = parent;
vfile->entry.pde = pde;
@@ -693,7 +688,7 @@ int xnvfile_init_dir(const char *name,
parent = &sysroot;
ppde = parent->entry.pde;
- pde = create_proc_entry(name, S_IFDIR, ppde);
+ pde = proc_mkdir(name, ppde);
if (pde == NULL)
return -ENOMEM;
@@ -762,10 +757,7 @@ EXPORT_SYMBOL_GPL(xnvfile_init_link);
*/
void xnvfile_destroy(struct xnvfile *vfile)
{
- struct proc_dir_entry *ppde;
-
- ppde = vfile->parent ? vfile->parent->entry.pde : nkvfroot.entry.pde;
- remove_proc_entry(vfile->pde->name, ppde);
+ proc_remove(vfile->pde);
}
EXPORT_SYMBOL_GPL(xnvfile_destroy);
@@ -961,7 +953,7 @@ int __init xnvfile_init_root(void)
struct xnvfile_directory *vdir = &nkvfroot;
struct proc_dir_entry *pde;
- pde = create_proc_entry("xenomai", S_IFDIR, NULL);
+ pde = proc_mkdir("xenomai", NULL);
if (pde == NULL)
return -ENOMEM;
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