[PATCH] sysfs: fix sysfs_setattr

o sysfs_dirent's s_mode field should also be updated in sysfs_setattr(), else
  there could be inconsistency in the two fields. s_mode is used while
  ->readdir so as not to bring in the inode to cache.

Signed-off-by: Maneesh Soni <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 8de13bafaa76732ec184733ebef14cfd4c79e546..d727dc960634a28de3df914ccb26cdc63fac98a9 100644 (file)
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -85,7 +85,7 @@ int sysfs_setattr(struct dentry * dentry, struct iattr * iattr)
 
                if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
                        mode &= ~S_ISGID;
-               sd_iattr->ia_mode = mode;
+               sd_iattr->ia_mode = sd->s_mode = mode;
        }
 
        return error;