+ procfs-return-enoent-on-opening-a-being-removed-proc-entry.patch added to -mm tree

+ procfs-return-enoent-on-opening-a-being-removed-proc-entry.patch added to -mm tree

[akpm]

The patch titled
     procfs: return ENOENT on opening a being-removed proc entry
has been added to the -mm tree.  Its filename is
     procfs-return-enoent-on-opening-a-being-removed-proc-entry.patch

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See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this

The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
Subject: procfs: return ENOENT on opening a being-removed proc entry
From: Daisuke Ogino <ogino.daisuke@jp.fujitsu.com>

Change the return value to ENOENT.  This return value is then returned
when opening the proc entry that have been removed.  For example,
open("/proc/bus/pci/XX/YY") when the corresponding device is being
hot-removed.

Signed-off-by: Daisuke Ogino <ogino.daisuke@jp.fujitsu.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/proc/inode.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN fs/proc/inode.c~procfs-return-enoent-on-opening-a-being-removed-proc-entry fs/proc/inode.c
--- a/fs/proc/inode.c~procfs-return-enoent-on-opening-a-being-removed-proc-entry
+++ a/fs/proc/inode.c
@@ -321,7 +321,7 @@ static int proc_reg_open(struct inode *i
 	if (!pde->proc_fops) {
 		spin_unlock(&pde->pde_unload_lock);
 		kfree(pdeo);
-		return -EINVAL;
+		return -ENOENT;
 	}
 	pde->pde_users++;
 	open = pde->proc_fops->open;
_

Patches currently in -mm which might be from ogino.daisuke@jp.fujitsu.com are

procfs-return-enoent-on-opening-a-being-removed-proc-entry.patch