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authorAl Viro <viro@zeniv.linux.org.uk>2012-02-06 12:45:27 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-03-20 21:29:32 -0400
commit8de52778798fe39660a8d6b26f290e0c93202761 (patch)
tree56384beb7863c1f338f2b66b509bf58eea5a99c2 /include
parentc16fa4f2ad19908a47c63d8fa436a1178438c7e7 (diff)
downloadlinux-8de52778798fe39660a8d6b26f290e0c93202761.tar.bz2
vfs: check i_nlink limits in vfs_{mkdir,rename_dir,link}
New field of struct super_block - ->s_max_links. Maximal allowed value of ->i_nlink or 0; in the latter case all checks still need to be done in ->link/->mkdir/->rename instances. Note that this limit applies both to directoris and to non-directories. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include')
-rw-r--r--include/linux/fs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 69cd5bb640f5..0ab89426ba55 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1459,6 +1459,7 @@ struct super_block {
u8 s_uuid[16]; /* UUID */
void *s_fs_info; /* Filesystem private info */
+ unsigned int s_max_links;
fmode_t s_mode;
/* Granularity of c/m/atime in ns.