The patch titled
lost content of /proc/sys/fs/binfmt_misc
has been removed from the -mm tree. Its filename was
lost-content-of-proc-sys-fs-binfmt_misc.patch
This patch was dropped because it is obsolete
------------------------------------------------------
Subject: lost content of /proc/sys/fs/binfmt_misc
From: "Denis V. Lunev" <den@xxxxxxxxxx>
/proc/sys/fs/binfmt_misc dentry disappeared during d_revalidate.
d_revalidate only dentries from shadowed one and below.
http://bugzilla.kernel.org/show_bug.cgi?id=9504
Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
Cc: Marcus Better <marcus@xxxxxxxxx>
Signed-off-by: Denis V. Lunev <den@xxxxxxxxxx>
Cc: Marcus Better <marcus@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/generic.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff -puN fs/proc/generic.c~lost-content-of-proc-sys-fs-binfmt_misc fs/proc/generic.c
--- a/fs/proc/generic.c~lost-content-of-proc-sys-fs-binfmt_misc
+++ a/fs/proc/generic.c
@@ -380,12 +380,17 @@ static int proc_revalidate_dentry(struct
return 0;
}
-static struct dentry_operations proc_dentry_operations =
+static struct dentry_operations proc_dentry_shadow_operations =
{
.d_delete = proc_delete_dentry,
.d_revalidate = proc_revalidate_dentry,
};
+static struct dentry_operations proc_dentry_operations =
+{
+ .d_delete = proc_delete_dentry,
+};
+
/*
* Don't create negative dentries here, return -ENOENT by hand
* instead.
@@ -394,6 +399,7 @@ struct dentry *proc_lookup(struct inode
{
struct inode *inode = NULL;
struct proc_dir_entry * de;
+ int use_shadow = 0;
int error = -ENOENT;
lock_kernel();
@@ -406,8 +412,10 @@ struct dentry *proc_lookup(struct inode
if (!memcmp(dentry->d_name.name, de->name, de->namelen)) {
unsigned int ino;
- if (de->shadow_proc)
+ if (de->shadow_proc) {
de = de->shadow_proc(current, de);
+ use_shadow = 1;
+ }
ino = de->low_ino;
de_get(de);
spin_unlock(&proc_subdir_lock);
@@ -423,6 +431,8 @@ struct dentry *proc_lookup(struct inode
if (inode) {
dentry->d_op = &proc_dentry_operations;
+ dentry->d_op = use_shadow ?
+ &proc_dentry_shadow_operations : dentry->d_parent->d_op;
d_add(dentry, inode);
return NULL;
}
_
Patches currently in -mm which might be from den@xxxxxxxxxx are
revert-fix-proc-net-breakage.patch
lost-content-of-proc-sys-fs-binfmt_misc.patch
lost-content-of-proc-sys-fs-binfmt_misc-checkpatch-fixes.patch
git-net.patch
-
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