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From: Miklos Szeredi on 10 Aug 2010 05:50
From: Miklos Szeredi <mszeredi(a)suse.cz>

Switch ia64/perfmon to using the d_dname() instead of relying on
__d_path() to prepend the name of the root dentry to the path.

CC: Tony Luck <tony.luck(a)intel.com>
CC: Fenghua Yu <fenghua.yu(a)intel.com>
Signed-off-by: Miklos Szeredi <mszeredi(a)suse.cz>
---
arch/ia64/kernel/perfmon.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)

Index: linux-2.6/arch/ia64/kernel/perfmon.c
===================================================================
--- linux-2.6.orig/arch/ia64/kernel/perfmon.c 2010-07-06 17:59:04.000000000 +0200
+++ linux-2.6/arch/ia64/kernel/perfmon.c 2010-07-06 18:08:09.000000000 +0200
@@ -2191,8 +2191,15 @@ pfmfs_delete_dentry(struct dentry *dentr
return 1;
}

+static char *pfmfs_dname(struct dentry *dentry, char *buffer, int buflen)
+{
+ return dynamic_dname(dentry, buffer, buflen, "pfm:[%lu]",
+ dentry->d_inode->i_ino);
+}
+
static const struct dentry_operations pfmfs_dentry_operations = {
.d_delete = pfmfs_delete_dentry,
+ .d_dname = pfmfs_dname,
};


@@ -2202,8 +2209,7 @@ pfm_alloc_file(pfm_context_t *ctx)
struct file *file;
struct inode *inode;
struct path path;
- char name[32];
- struct qstr this;
+ struct qstr this = { .name = "" };

/*
* allocate a new inode
@@ -2218,11 +2224,6 @@ pfm_alloc_file(pfm_context_t *ctx)
inode->i_uid = current_fsuid();
inode->i_gid = current_fsgid();

- sprintf(name, "[%lu]", inode->i_ino);
- this.name = name;
- this.len = strlen(name);
- this.hash = inode->i_ino;
-
/*
* allocate a new dcache entry
*/

--
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