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authorJohn Stultz <johnstul@us.ibm.com>2010-03-22 17:18:36 -0700
committerThomas Gleixner <tglx@linutronix.de>2010-04-27 17:32:26 +0200
commit6f91ea55dfbe1b571542723bf8423e897f68b2c1 (patch)
tree13dc3d9752f81af60c214a8d62ad26ab7fdd749b /security
parente48c15434b82de9a3f597f02ea2257ca22d44d9f (diff)
downloadlwn-6f91ea55dfbe1b571542723bf8423e897f68b2c1.tar.gz
lwn-6f91ea55dfbe1b571542723bf8423e897f68b2c1.zip
fs-files_list-improve
Lock tty_files with a new spinlock, tty_files_lock; provide helpers to manipulate the per-sb files list; unexport the files_lock spinlock. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'security')
-rw-r--r--security/selinux/hooks.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 9a2ee845e9d4..f013de205ea8 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2246,7 +2246,7 @@ static inline void flush_unauthorized_files(const struct cred *cred,
tty = get_current_tty();
if (tty) {
- file_list_lock();
+ spin_lock(&tty_files_lock);
if (!list_empty(&tty->tty_files)) {
struct inode *inode;
@@ -2262,7 +2262,7 @@ static inline void flush_unauthorized_files(const struct cred *cred,
drop_tty = 1;
}
}
- file_list_unlock();
+ spin_unlock(&tty_files_lock);
tty_kref_put(tty);
}
/* Reset controlling tty. */