Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=39699037a5c94d7cd1363dfe48a50c78c643fd9a
Commit: 39699037a5c94d7cd1363dfe48a50c78c643fd9a
Parent: 59e90b2d22500f2e9cc635793562154abc8f4621
Author: Pavel Emelyanov <[EMAIL PROTECTED]>
AuthorDate: Wed Oct 10 02:28:42 2007 -0700
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Wed Oct 10 16:55:33 2007 -0700
[FS] seq_file: Introduce the seq_open_private()
This function allocates the zeroed chunk of memory and
call seq_open(). The __seq_open_private() helper returns
the allocated memory to make it possible for the caller
to initialize it.
Signed-off-by: Pavel Emelyanov <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
fs/seq_file.c | 33 +++++++++++++++++++++++++++++++++
include/linux/seq_file.h | 2 ++
2 files changed, 35 insertions(+), 0 deletions(-)
diff --git a/fs/seq_file.c b/fs/seq_file.c
index bbb19be..ca71c11 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -429,6 +429,39 @@ int seq_release_private(struct inode *inode, struct file
*file)
}
EXPORT_SYMBOL(seq_release_private);
+void *__seq_open_private(struct file *f, const struct seq_operations *ops,
+ int psize)
+{
+ int rc;
+ void *private;
+ struct seq_file *seq;
+
+ private = kzalloc(psize, GFP_KERNEL);
+ if (private == NULL)
+ goto out;
+
+ rc = seq_open(f, ops);
+ if (rc < 0)
+ goto out_free;
+
+ seq = f->private_data;
+ seq->private = private;
+ return private;
+
+out_free:
+ kfree(private);
+out:
+ return NULL;
+}
+EXPORT_SYMBOL(__seq_open_private);
+
+int seq_open_private(struct file *filp, const struct seq_operations *ops,
+ int psize)
+{
+ return __seq_open_private(filp, ops, psize) ? 0 : -ENOMEM;
+}
+EXPORT_SYMBOL(seq_open_private);
+
int seq_putc(struct seq_file *m, char c)
{
if (m->count < m->size) {
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 83783ab..8bf1e05 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -46,6 +46,8 @@ int seq_path(struct seq_file *, struct vfsmount *, struct
dentry *, char *);
int single_open(struct file *, int (*)(struct seq_file *, void *), void *);
int single_release(struct inode *, struct file *);
+void *__seq_open_private(struct file *, const struct seq_operations *, int);
+int seq_open_private(struct file *, const struct seq_operations *, int);
int seq_release_private(struct inode *, struct file *);
#define SEQ_START_TOKEN ((void *)1)
-
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