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Diffstat (limited to 'fs/kernfs/file.c')
-rw-r--r--fs/kernfs/file.c121
1 files changed, 61 insertions, 60 deletions
diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
index 32364ddb24de..053cfd9a6a40 100644
--- a/fs/kernfs/file.c
+++ b/fs/kernfs/file.c
@@ -64,7 +64,7 @@ static void *kernfs_seq_start(struct seq_file *sf, loff_t *ppos)
* the ops aren't called concurrently for the same open file.
*/
mutex_lock(&of->mutex);
- if (!sysfs_get_active(of->kn))
+ if (!kernfs_get_active(of->kn))
return ERR_PTR(-ENODEV);
ops = kernfs_ops(of->kn);
@@ -104,7 +104,7 @@ static void kernfs_seq_stop(struct seq_file *sf, void *v)
if (ops->seq_stop)
ops->seq_stop(sf, v);
- sysfs_put_active(of->kn);
+ kernfs_put_active(of->kn);
mutex_unlock(&of->mutex);
}
@@ -147,7 +147,7 @@ static ssize_t kernfs_file_direct_read(struct kernfs_open_file *of,
* the ops aren't called concurrently for the same open file.
*/
mutex_lock(&of->mutex);
- if (!sysfs_get_active(of->kn)) {
+ if (!kernfs_get_active(of->kn)) {
len = -ENODEV;
mutex_unlock(&of->mutex);
goto out_free;
@@ -159,7 +159,7 @@ static ssize_t kernfs_file_direct_read(struct kernfs_open_file *of,
else
len = -EINVAL;
- sysfs_put_active(of->kn);
+ kernfs_put_active(of->kn);
mutex_unlock(&of->mutex);
if (len < 0)
@@ -178,14 +178,14 @@ static ssize_t kernfs_file_direct_read(struct kernfs_open_file *of,
}
/**
- * kernfs_file_read - kernfs vfs read callback
+ * kernfs_fop_read - kernfs vfs read callback
* @file: file pointer
* @user_buf: data to write
* @count: number of bytes
* @ppos: starting offset
*/
-static ssize_t kernfs_file_read(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
+static ssize_t kernfs_fop_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
{
struct kernfs_open_file *of = kernfs_of(file);
@@ -196,7 +196,7 @@ static ssize_t kernfs_file_read(struct file *file, char __user *user_buf,
}
/**
- * kernfs_file_write - kernfs vfs write callback
+ * kernfs_fop_write - kernfs vfs write callback
* @file: file pointer
* @user_buf: data to write
* @count: number of bytes
@@ -211,8 +211,8 @@ static ssize_t kernfs_file_read(struct file *file, char __user *user_buf,
* modify only the the value you're changing, then write entire buffer
* back.
*/
-static ssize_t kernfs_file_write(struct file *file, const char __user *user_buf,
- size_t count, loff_t *ppos)
+static ssize_t kernfs_fop_write(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
{
struct kernfs_open_file *of = kernfs_of(file);
ssize_t len = min_t(size_t, count, PAGE_SIZE);
@@ -234,7 +234,7 @@ static ssize_t kernfs_file_write(struct file *file, const char __user *user_buf,
* the ops aren't called concurrently for the same open file.
*/
mutex_lock(&of->mutex);
- if (!sysfs_get_active(of->kn)) {
+ if (!kernfs_get_active(of->kn)) {
mutex_unlock(&of->mutex);
len = -ENODEV;
goto out_free;
@@ -246,7 +246,7 @@ static ssize_t kernfs_file_write(struct file *file, const char __user *user_buf,
else
len = -EINVAL;
- sysfs_put_active(of->kn);
+ kernfs_put_active(of->kn);
mutex_unlock(&of->mutex);
if (len > 0)
@@ -264,13 +264,13 @@ static void kernfs_vma_open(struct vm_area_struct *vma)
if (!of->vm_ops)
return;
- if (!sysfs_get_active(of->kn))
+ if (!kernfs_get_active(of->kn))
return;
if (of->vm_ops->open)
of->vm_ops->open(vma);
- sysfs_put_active(of->kn);
+ kernfs_put_active(of->kn);
}
static int kernfs_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
@@ -282,14 +282,14 @@ static int kernfs_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
if (!of->vm_ops)
return VM_FAULT_SIGBUS;
- if (!sysfs_get_active(of->kn))
+ if (!kernfs_get_active(of->kn))
return VM_FAULT_SIGBUS;
ret = VM_FAULT_SIGBUS;
if (of->vm_ops->fault)
ret = of->vm_ops->fault(vma, vmf);
- sysfs_put_active(of->kn);
+ kernfs_put_active(of->kn);
return ret;
}
@@ -303,7 +303,7 @@ static int kernfs_vma_page_mkwrite(struct vm_area_struct *vma,
if (!of->vm_ops)
return VM_FAULT_SIGBUS;
- if (!sysfs_get_active(of->kn))
+ if (!kernfs_get_active(of->kn))
return VM_FAULT_SIGBUS;
ret = 0;
@@ -312,7 +312,7 @@ static int kernfs_vma_page_mkwrite(struct vm_area_struct *vma,
else
file_update_time(file);
- sysfs_put_active(of->kn);
+ kernfs_put_active(of->kn);
return ret;
}
@@ -326,14 +326,14 @@ static int kernfs_vma_access(struct vm_area_struct *vma, unsigned long addr,
if (!of->vm_ops)
return -EINVAL;
- if (!sysfs_get_active(of->kn))
+ if (!kernfs_get_active(of->kn))
return -EINVAL;
ret = -EINVAL;
if (of->vm_ops->access)
ret = of->vm_ops->access(vma, addr, buf, len, write);
- sysfs_put_active(of->kn);
+ kernfs_put_active(of->kn);
return ret;
}
@@ -348,14 +348,14 @@ static int kernfs_vma_set_policy(struct vm_area_struct *vma,
if (!of->vm_ops)
return 0;
- if (!sysfs_get_active(of->kn))
+ if (!kernfs_get_active(of->kn))
return -EINVAL;
ret = 0;
if (of->vm_ops->set_policy)
ret = of->vm_ops->set_policy(vma, new);
- sysfs_put_active(of->kn);
+ kernfs_put_active(of->kn);
return ret;
}
@@ -369,14 +369,14 @@ static struct mempolicy *kernfs_vma_get_policy(struct vm_area_struct *vma,
if (!of->vm_ops)
return vma->vm_policy;
- if (!sysfs_get_active(of->kn))
+ if (!kernfs_get_active(of->kn))
return vma->vm_policy;
pol = vma->vm_policy;
if (of->vm_ops->get_policy)
pol = of->vm_ops->get_policy(vma, addr);
- sysfs_put_active(of->kn);
+ kernfs_put_active(of->kn);
return pol;
}
@@ -391,14 +391,14 @@ static int kernfs_vma_migrate(struct vm_area_struct *vma,
if (!of->vm_ops)
return 0;
- if (!sysfs_get_active(of->kn))
+ if (!kernfs_get_active(of->kn))
return 0;
ret = 0;
if (of->vm_ops->migrate)
ret = of->vm_ops->migrate(vma, from, to, flags);
- sysfs_put_active(of->kn);
+ kernfs_put_active(of->kn);
return ret;
}
#endif
@@ -415,7 +415,7 @@ static const struct vm_operations_struct kernfs_vm_ops = {
#endif
};
-static int kernfs_file_mmap(struct file *file, struct vm_area_struct *vma)
+static int kernfs_fop_mmap(struct file *file, struct vm_area_struct *vma)
{
struct kernfs_open_file *of = kernfs_of(file);
const struct kernfs_ops *ops;
@@ -434,7 +434,7 @@ static int kernfs_file_mmap(struct file *file, struct vm_area_struct *vma)
mutex_lock(&of->mutex);
rc = -ENODEV;
- if (!sysfs_get_active(of->kn))
+ if (!kernfs_get_active(of->kn))
goto out_unlock;
ops = kernfs_ops(of->kn);
@@ -465,7 +465,7 @@ static int kernfs_file_mmap(struct file *file, struct vm_area_struct *vma)
of->vm_ops = vma->vm_ops;
vma->vm_ops = &kernfs_vm_ops;
out_put:
- sysfs_put_active(of->kn);
+ kernfs_put_active(of->kn);
out_unlock:
mutex_unlock(&of->mutex);
@@ -473,7 +473,7 @@ out_unlock:
}
/**
- * sysfs_get_open_dirent - get or create kernfs_open_node
+ * kernfs_get_open_node - get or create kernfs_open_node
* @kn: target kernfs_node
* @of: kernfs_open_file for this instance of open
*
@@ -486,8 +486,8 @@ out_unlock:
* RETURNS:
* 0 on success, -errno on failure.
*/
-static int sysfs_get_open_dirent(struct kernfs_node *kn,
- struct kernfs_open_file *of)
+static int kernfs_get_open_node(struct kernfs_node *kn,
+ struct kernfs_open_file *of)
{
struct kernfs_open_node *on, *new_on = NULL;
@@ -527,7 +527,7 @@ static int sysfs_get_open_dirent(struct kernfs_node *kn,
}
/**
- * sysfs_put_open_dirent - put kernfs_open_node
+ * kernfs_put_open_node - put kernfs_open_node
* @kn: target kernfs_nodet
* @of: associated kernfs_open_file
*
@@ -537,8 +537,8 @@ static int sysfs_get_open_dirent(struct kernfs_node *kn,
* LOCKING:
* None.
*/
-static void sysfs_put_open_dirent(struct kernfs_node *kn,
- struct kernfs_open_file *of)
+static void kernfs_put_open_node(struct kernfs_node *kn,
+ struct kernfs_open_file *of)
{
struct kernfs_open_node *on = kn->attr.open;
unsigned long flags;
@@ -560,7 +560,7 @@ static void sysfs_put_open_dirent(struct kernfs_node *kn,
kfree(on);
}
-static int kernfs_file_open(struct inode *inode, struct file *file)
+static int kernfs_fop_open(struct inode *inode, struct file *file)
{
struct kernfs_node *kn = file->f_path.dentry->d_fsdata;
const struct kernfs_ops *ops;
@@ -568,7 +568,7 @@ static int kernfs_file_open(struct inode *inode, struct file *file)
bool has_read, has_write, has_mmap;
int error = -EACCES;
- if (!sysfs_get_active(kn))
+ if (!kernfs_get_active(kn))
return -ENODEV;
ops = kernfs_ops(kn);
@@ -633,13 +633,13 @@ static int kernfs_file_open(struct inode *inode, struct file *file)
if (file->f_mode & FMODE_WRITE)
file->f_mode |= FMODE_PWRITE;
- /* make sure we have open dirent struct */
- error = sysfs_get_open_dirent(kn, of);
+ /* make sure we have open node struct */
+ error = kernfs_get_open_node(kn, of);
if (error)
goto err_close;
/* open succeeded, put active references */
- sysfs_put_active(kn);
+ kernfs_put_active(kn);
return 0;
err_close:
@@ -647,23 +647,23 @@ err_close:
err_free:
kfree(of);
err_out:
- sysfs_put_active(kn);
+ kernfs_put_active(kn);
return error;
}
-static int kernfs_file_release(struct inode *inode, struct file *filp)
+static int kernfs_fop_release(struct inode *inode, struct file *filp)
{
struct kernfs_node *kn = filp->f_path.dentry->d_fsdata;
struct kernfs_open_file *of = kernfs_of(filp);
- sysfs_put_open_dirent(kn, of);
+ kernfs_put_open_node(kn, of);
seq_release(inode, filp);
kfree(of);
return 0;
}
-void sysfs_unmap_bin_file(struct kernfs_node *kn)
+void kernfs_unmap_bin_file(struct kernfs_node *kn)
{
struct kernfs_open_node *on;
struct kernfs_open_file *of;
@@ -686,10 +686,11 @@ void sysfs_unmap_bin_file(struct kernfs_node *kn)
}
mutex_unlock(&kernfs_open_file_mutex);
- sysfs_put_open_dirent(kn, NULL);
+ kernfs_put_open_node(kn, NULL);
}
-/* Sysfs attribute files are pollable. The idea is that you read
+/*
+ * Kernfs attribute files are pollable. The idea is that you read
* the content and then you use 'poll' or 'select' to wait for
* the content to change. When the content changes (assuming the
* manager for the kobject supports notification), poll will
@@ -702,19 +703,19 @@ void sysfs_unmap_bin_file(struct kernfs_node *kn)
* to see if it supports poll (Neither 'poll' nor 'select' return
* an appropriate error code). When in doubt, set a suitable timeout value.
*/
-static unsigned int kernfs_file_poll(struct file *filp, poll_table *wait)
+static unsigned int kernfs_fop_poll(struct file *filp, poll_table *wait)
{
struct kernfs_open_file *of = kernfs_of(filp);
struct kernfs_node *kn = filp->f_path.dentry->d_fsdata;
struct kernfs_open_node *on = kn->attr.open;
/* need parent for the kobj, grab both */
- if (!sysfs_get_active(kn))
+ if (!kernfs_get_active(kn))
goto trigger;
poll_wait(filp, &on->poll, wait);
- sysfs_put_active(kn);
+ kernfs_put_active(kn);
if (of->event != atomic_read(&on->event))
goto trigger;
@@ -751,13 +752,13 @@ void kernfs_notify(struct kernfs_node *kn)
EXPORT_SYMBOL_GPL(kernfs_notify);
const struct file_operations kernfs_file_fops = {
- .read = kernfs_file_read,
- .write = kernfs_file_write,
+ .read = kernfs_fop_read,
+ .write = kernfs_fop_write,
.llseek = generic_file_llseek,
- .mmap = kernfs_file_mmap,
- .open = kernfs_file_open,
- .release = kernfs_file_release,
- .poll = kernfs_file_poll,
+ .mmap = kernfs_fop_mmap,
+ .open = kernfs_fop_open,
+ .release = kernfs_fop_release,
+ .poll = kernfs_fop_poll,
};
/**
@@ -784,8 +785,8 @@ struct kernfs_node *kernfs_create_file_ns_key(struct kernfs_node *parent,
struct kernfs_node *kn;
int rc;
- kn = sysfs_new_dirent(kernfs_root(parent), name,
- (mode & S_IALLUGO) | S_IFREG, KERNFS_FILE);
+ kn = kernfs_new_node(kernfs_root(parent), name,
+ (mode & S_IALLUGO) | S_IFREG, KERNFS_FILE);
if (!kn)
return ERR_PTR(-ENOMEM);
@@ -811,9 +812,9 @@ struct kernfs_node *kernfs_create_file_ns_key(struct kernfs_node *parent,
if (ops->mmap)
kn->flags |= KERNFS_HAS_MMAP;
- sysfs_addrm_start(&acxt);
- rc = sysfs_add_one(&acxt, kn, parent);
- sysfs_addrm_finish(&acxt);
+ kernfs_addrm_start(&acxt);
+ rc = kernfs_add_one(&acxt, kn, parent);
+ kernfs_addrm_finish(&acxt);
if (rc) {
kernfs_put(kn);