diff options
author | Dipankar Sarma <dipankar@in.ibm.com> | 2005-09-09 16:04:14 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-09 16:57:55 -0400 |
commit | b835996f628eadb55c5fb222ba46fe9395bf73c7 (patch) | |
tree | d63d80585d197e1ffc299af4a0034049790fb197 /security/selinux/hooks.c | |
parent | ab2af1f5005069321c5d130f09cce577b03f43ef (diff) |
[PATCH] files: lock-free fd look-up
With the use of RCU in files structure, the look-up of files using fds can now
be lock-free. The lookup is protected by rcu_read_lock()/rcu_read_unlock().
This patch changes the readers to use lock-free lookup.
Signed-off-by: Maneesh Soni <maneesh@in.ibm.com>
Signed-off-by: Ravikiran Thirumalai <kiran_th@gmail.com>
Signed-off-by: Dipankar Sarma <dipankar@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'security/selinux/hooks.c')
-rw-r--r-- | security/selinux/hooks.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index acb5a495a902..f40c8221ec1b 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c | |||
@@ -1652,7 +1652,7 @@ static inline void flush_unauthorized_files(struct files_struct * files) | |||
1652 | continue; | 1652 | continue; |
1653 | } | 1653 | } |
1654 | if (devnull) { | 1654 | if (devnull) { |
1655 | atomic_inc(&devnull->f_count); | 1655 | rcuref_inc(&devnull->f_count); |
1656 | } else { | 1656 | } else { |
1657 | devnull = dentry_open(dget(selinux_null), mntget(selinuxfs_mount), O_RDWR); | 1657 | devnull = dentry_open(dget(selinux_null), mntget(selinuxfs_mount), O_RDWR); |
1658 | if (!devnull) { | 1658 | if (!devnull) { |