[PATCH] tmpfs 1/7 LTP ENAMETOOLONG

[Hugh Dickins]

First of 2+3+2 tmpfs patches, based on 2.6.0-test7-mm1, total diffstat:

 fs/hugetlbfs/inode.c |   20 +++++++++++++---
 fs/libfs.c           |    2 +
 fs/ramfs/inode.c     |    7 +++++
 mm/shmem.c           |   63 +++++++++++++++++++++++++++++++++++++++++----------
 4 files changed, 77 insertions(+), 15 deletions(-)

[PATCH] tmpfs 1/7 LTP ENAMETOOLONG

LTP tests the filesystem on /tmp: many failures when tmpfs because
simple_lookup forgot to reject filenames longer than the NAME_MAX
tmpfs declares in its statfs.  This also fixes ramfs and hugetlbfs.

--- 2.6.0-test7-mm1/fs/libfs.c	2003-10-08 20:24:55.000000000 +0100
+++ tmpfs1/fs/libfs.c	2003-10-15 15:38:30.349562896 +0100
@@ -32,6 +32,8 @@
 
 struct dentry *simple_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
 {
+	if (dentry->d_name.len > NAME_MAX)
+		return ERR_PTR(-ENAMETOOLONG);
 	d_add(dentry, NULL);
 	return NULL;
 }

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