All of the functions for proc_maps_operations are already
defined in task_mmu.c so move the operations structure to
keep the functionality together.
Since task_nommu.c implements a dummy version of
/proc/<pid>/maps give it a simplified version
of proc_maps_operations that it can modify
to best suit its needs.
Signed-off-by: Eric W. Biederman <[email protected]>
---
fs/proc/base.c | 61 --------------------------------------------------
fs/proc/internal.h | 4 +++
fs/proc/task_mmu.c | 54 ++++++++++++++++++++++++++++++++++++++++++--
fs/proc/task_nommu.c | 21 ++++++++++++++++-
4 files changed, 75 insertions(+), 65 deletions(-)
b5c8957160dd4dd4a680f3bc99cdcda6af7bf1de
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 1a39258..4bdc859 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -489,67 +489,6 @@ static int proc_oom_score(struct task_st
/* Here the fs part begins */
/************************************************************************/
-extern struct seq_operations proc_pid_maps_op;
-static int maps_open(struct inode *inode, struct file *file)
-{
- struct task_struct *task = proc_task(inode);
- int ret = seq_open(file, &proc_pid_maps_op);
- if (!ret) {
- struct seq_file *m = file->private_data;
- m->private = task;
- }
- return ret;
-}
-
-static struct file_operations proc_maps_operations = {
- .open = maps_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-#ifdef CONFIG_NUMA
-extern struct seq_operations proc_pid_numa_maps_op;
-static int numa_maps_open(struct inode *inode, struct file *file)
-{
- struct task_struct *task = proc_task(inode);
- int ret = seq_open(file, &proc_pid_numa_maps_op);
- if (!ret) {
- struct seq_file *m = file->private_data;
- m->private = task;
- }
- return ret;
-}
-
-static struct file_operations proc_numa_maps_operations = {
- .open = numa_maps_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-#endif
-
-#ifdef CONFIG_MMU
-extern struct seq_operations proc_pid_smaps_op;
-static int smaps_open(struct inode *inode, struct file *file)
-{
- struct task_struct *task = proc_task(inode);
- int ret = seq_open(file, &proc_pid_smaps_op);
- if (!ret) {
- struct seq_file *m = file->private_data;
- m->private = task;
- }
- return ret;
-}
-
-static struct file_operations proc_smaps_operations = {
- .open = smaps_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-#endif
-
extern struct seq_operations mounts_op;
struct proc_mounts {
struct seq_file m;
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 8ea21d3..ac95bfc 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -37,6 +37,10 @@ extern int proc_tgid_stat(struct task_st
extern int proc_pid_status(struct task_struct *, char *);
extern int proc_pid_statm(struct task_struct *, char *);
+extern struct file_operations proc_maps_operations;
+extern struct file_operations proc_numa_maps_operations;
+extern struct file_operations proc_smaps_operations;
+
void free_proc_entry(struct proc_dir_entry *de);
int proc_init_inodecache(void);
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 0eaad41..56cd932 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -375,27 +375,75 @@ static void *m_next(struct seq_file *m,
return (vma != tail_vma)? tail_vma: NULL;
}
-struct seq_operations proc_pid_maps_op = {
+static struct seq_operations proc_pid_maps_op = {
.start = m_start,
.next = m_next,
.stop = m_stop,
.show = show_map
};
-struct seq_operations proc_pid_smaps_op = {
+static struct seq_operations proc_pid_smaps_op = {
.start = m_start,
.next = m_next,
.stop = m_stop,
.show = show_smap
};
+static int do_maps_open(struct inode *inode, struct file *file,
+ struct seq_operations *ops)
+{
+ struct task_struct *task = proc_task(inode);
+ int ret = seq_open(file, ops);
+ if (!ret) {
+ struct seq_file *m = file->private_data;
+ m->private = task;
+ }
+ return ret;
+}
+
+static int maps_open(struct inode *inode, struct file *file)
+{
+ return do_maps_open(inode, file, &proc_pid_maps_op);
+}
+
+struct file_operations proc_maps_operations = {
+ .open = maps_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
#ifdef CONFIG_NUMA
extern int show_numa_map(struct seq_file *m, void *v);
-struct seq_operations proc_pid_numa_maps_op = {
+static struct seq_operations proc_pid_numa_maps_op = {
.start = m_start,
.next = m_next,
.stop = m_stop,
.show = show_numa_map
};
+
+static int numa_maps_open(struct inode *inode, struct file *file)
+{
+ return do_maps_open(inode, file, &proc_pid_numa_maps_op);
+}
+
+struct file_operations proc_numa_maps_operations = {
+ .open = numa_maps_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
#endif
+
+static int smaps_open(struct inode *inode, struct file *file)
+{
+ return do_maps_open(inode, file, &proc_pid_smaps_op);
+}
+
+struct file_operations proc_smaps_operations = {
+ .open = smaps_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index 8f68827..af69f28 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -156,9 +156,28 @@ static void *m_next(struct seq_file *m,
{
return NULL;
}
-struct seq_operations proc_pid_maps_op = {
+static struct seq_operations proc_pid_maps_op = {
.start = m_start,
.next = m_next,
.stop = m_stop,
.show = show_map
};
+
+static int maps_open(struct inode *inode, struct file *file)
+{
+ int ret;
+ ret = seq_open(file, &proc_pid_maps_op);
+ if (!ret) {
+ struct seq_file *m = file->private_data;
+ m->private = NULL;
+ }
+ return ret;
+}
+
+struct file_operations proc_maps_operations = {
+ .open = maps_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
--
1.2.2.g709a
-
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