The patch titled
procfs: detect duplicate names
has been added to the -mm tree. Its filename is
procfs-detect-duplicate-names.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: procfs: detect duplicate names
From: Zhang Rui <rui.zhang@xxxxxxxxx>
In order to keep the back-compatibility, only a warning is given currently,
but actions must be taken to fix it when such duplicates are detected.
Bug report and a simple fix can be found here:
http://bugzilla.kernel.org/show_bug.cgi?id=8798
Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/generic.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff -puN fs/proc/generic.c~procfs-detect-duplicate-names fs/proc/generic.c
--- a/fs/proc/generic.c~procfs-detect-duplicate-names
+++ a/fs/proc/generic.c
@@ -523,6 +523,7 @@ static const struct inode_operations pro
static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp)
{
+ struct proc_dir_entry *tmp = NULL;
unsigned int i;
i = get_inode_number();
@@ -547,11 +548,22 @@ static int proc_register(struct proc_dir
}
spin_lock(&proc_subdir_lock);
+
+ for (tmp = dir->subdir, i = 0; tmp && !i; tmp = tmp->next)
+ if (!strcmp(dp->name, tmp->name))
+ i = 1;
+
dp->next = dir->subdir;
dp->parent = dir;
dir->subdir = dp;
spin_unlock(&proc_subdir_lock);
+ if (i) {
+ printk(KERN_WARNING
+ "Duplicate file names \"%s\" detected.", dp->name);
+ dump_stack();
+ }
+
return 0;
}
_
Patches currently in -mm which might be from rui.zhang@xxxxxxxxx are
procfs-detect-duplicate-names.patch
procfs-detect-duplicate-names-fix.patch
-
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