From a6e6df25ec6751f4f73784398ab7d43cf9d2019f Mon Sep 17 00:00:00 2001 From: Erez Zadok Date: Sun, 18 Feb 2007 23:57:45 -0500 Subject: [PATCH] fs/stack.c: Copy i_nlink after all other attributes are copied A user-specified get_nlinks may depend on other inode attributes. Cc: Michael Halcrow Signed-off-by: Erez Zadok Signed-off-by: Josef 'Jeff' Sipek Signed-off-by: Linus Torvalds --- fs/stack.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/fs/stack.c b/fs/stack.c index 8ffb880d2f46..67716f6a1a4a 100644 --- a/fs/stack.c +++ b/fs/stack.c @@ -20,11 +20,6 @@ EXPORT_SYMBOL_GPL(fsstack_copy_inode_size); void fsstack_copy_attr_all(struct inode *dest, const struct inode *src, int (*get_nlinks)(struct inode *)) { - if (!get_nlinks) - dest->i_nlink = src->i_nlink; - else - dest->i_nlink = (*get_nlinks)(dest); - dest->i_mode = src->i_mode; dest->i_uid = src->i_uid; dest->i_gid = src->i_gid; @@ -34,5 +29,14 @@ void fsstack_copy_attr_all(struct inode *dest, const struct inode *src, dest->i_ctime = src->i_ctime; dest->i_blkbits = src->i_blkbits; dest->i_flags = src->i_flags; + + /* + * Update the nlinks AFTER updating the above fields, because the + * get_links callback may depend on them. + */ + if (!get_nlinks) + dest->i_nlink = src->i_nlink; + else + dest->i_nlink = (*get_nlinks)(dest); } EXPORT_SYMBOL_GPL(fsstack_copy_attr_all); -- cgit v1.2.2