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Subject[PATCH 8/9] d_path: Make seq_path() use a struct path argument
seq_path() is always called with a dentry and a vfsmount from a struct
path. Make seq_path() take it directly as an argument.

Signed-off-by: Jan Blunck <jblunck@suse.de>
---
drivers/md/md.c | 3 +--
fs/namespace.c | 6 ++++--
fs/nfsd/export.c | 4 ++--
fs/proc/nommu.c | 2 +-
fs/proc/task_mmu.c | 2 +-
fs/seq_file.c | 7 +++----
include/linux/seq_file.h | 5 ++---
mm/mempolicy.c | 2 +-
mm/swapfile.c | 2 +-
9 files changed, 16 insertions(+), 17 deletions(-)
Index: b/drivers/md/md.c
===================================================================
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5011,8 +5011,7 @@ static int md_seq_show(struct seq_file *
chunk_kb ? "KB" : "B");
if (bitmap->file) {
seq_printf(seq, ", file: ");
- seq_path(seq, bitmap->file->f_path.mnt,
- bitmap->file->f_path.dentry," \t\n");
+ seq_path(seq, &bitmap->file->f_path, " \t\n");
}

seq_printf(seq, "\n");
Index: b/fs/namespace.c
===================================================================
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -684,10 +684,11 @@ static int show_vfsmnt(struct seq_file *
{ 0, NULL }
};
struct proc_fs_info *fs_infop;
+ struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };

mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
seq_putc(m, ' ');
- seq_path(m, mnt, mnt->mnt_root, " \t\n\\");
+ seq_path(m, &mnt_path, " \t\n\\");
seq_putc(m, ' ');
mangle(m, mnt->mnt_sb->s_type->name);
if (mnt->mnt_sb->s_subtype && mnt->mnt_sb->s_subtype[0]) {
@@ -721,6 +722,7 @@ struct seq_operations mounts_op = {
static int show_vfsstat(struct seq_file *m, void *v)
{
struct vfsmount *mnt = list_entry(v, struct vfsmount, mnt_list);
+ struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
int err = 0;

/* device */
@@ -732,7 +734,7 @@ static int show_vfsstat(struct seq_file

/* mount point */
seq_puts(m, " mounted on ");
- seq_path(m, mnt, mnt->mnt_root, " \t\n\\");
+ seq_path(m, &mnt_path, " \t\n\\");
seq_putc(m, ' ');

/* file system type */
Index: b/fs/nfsd/export.c
===================================================================
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -203,7 +203,7 @@ static int expkey_show(struct seq_file *
if (test_bit(CACHE_VALID, &h->flags) &&
!test_bit(CACHE_NEGATIVE, &h->flags)) {
seq_printf(m, " ");
- seq_path(m, ek->ek_path.mnt, ek->ek_path.dentry, "\\ \t\n");
+ seq_path(m, &ek->ek_path, "\\ \t\n");
}
seq_printf(m, "\n");
return 0;
@@ -649,7 +649,7 @@ static int svc_export_show(struct seq_fi
return 0;
}
exp = container_of(h, struct svc_export, h);
- seq_path(m, exp->ex_path.mnt, exp->ex_path.dentry, " \t\n\\");
+ seq_path(m, &exp->ex_path, " \t\n\\");
seq_putc(m, '\t');
seq_escape(m, exp->ex_client->name, " \t\n\\");
seq_putc(m, '(');
Index: b/fs/proc/nommu.c
===================================================================
--- a/fs/proc/nommu.c
+++ b/fs/proc/nommu.c
@@ -67,7 +67,7 @@ int nommu_vma_show(struct seq_file *m, s
if (len < 1)
len = 1;
seq_printf(m, "%*c", len, ' ');
- seq_path(m, file->f_path.mnt, file->f_path.dentry, "");
+ seq_path(m, &file->f_path, "");
}

seq_putc(m, '\n');
Index: b/fs/proc/task_mmu.c
===================================================================
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -268,7 +268,7 @@ static int show_map(struct seq_file *m,
*/
if (file) {
pad_len_spaces(m, len);
- seq_path(m, file->f_path.mnt, file->f_path.dentry, "\n");
+ seq_path(m, &file->f_path, "\n");
} else {
const char *name = arch_vma_name(vma);
if (!name) {
Index: b/fs/seq_file.c
===================================================================
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -349,13 +349,12 @@ int seq_printf(struct seq_file *m, const
}
EXPORT_SYMBOL(seq_printf);

-int seq_path(struct seq_file *m,
- struct vfsmount *mnt, struct dentry *dentry,
- char *esc)
+int seq_path(struct seq_file *m, struct path *path, char *esc)
{
if (m->count < m->size) {
char *s = m->buf + m->count;
- char *p = d_path(dentry, mnt, s, m->size - m->count);
+ char *p = d_path(path->dentry, path->mnt, s,
+ m->size - m->count);
if (!IS_ERR(p)) {
while (s <= p) {
char c = *p++;
Index: b/include/linux/seq_file.h
===================================================================
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -8,8 +8,7 @@

struct seq_operations;
struct file;
-struct vfsmount;
-struct dentry;
+struct path;
struct inode;

struct seq_file {
@@ -43,7 +42,7 @@ int seq_puts(struct seq_file *m, const c
int seq_printf(struct seq_file *, const char *, ...)
__attribute__ ((format (printf,2,3)));

-int seq_path(struct seq_file *, struct vfsmount *, struct dentry *, char *);
+int seq_path(struct seq_file *, struct path *, char *);

int single_open(struct file *, int (*)(struct seq_file *, void *), void *);
int single_release(struct inode *, struct file *);
Index: b/mm/mempolicy.c
===================================================================
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1968,7 +1968,7 @@ int show_numa_map(struct seq_file *m, vo

if (file) {
seq_printf(m, " file=");
- seq_path(m, file->f_path.mnt, file->f_path.dentry, "\n\t= ");
+ seq_path(m, &file->f_path, "\n\t= ");
} else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
seq_printf(m, " heap");
} else if (vma->vm_start <= mm->start_stack &&
Index: b/mm/swapfile.c
===================================================================
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1370,7 +1370,7 @@ static int swap_show(struct seq_file *sw
}

file = ptr->swap_file;
- len = seq_path(swap, file->f_path.mnt, file->f_path.dentry, " \t\n\\");
+ len = seq_path(swap, &file->f_path, " \t\n\\");
seq_printf(swap, "%*s%s\t%u\t%u\t%d\n",
len < 40 ? 40 - len : 1, " ",
S_ISBLK(file->f_path.dentry->d_inode->i_mode) ?

-
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