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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-12 10:52:03 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-12 10:52:03 +0900
commit79360ddd73dfe9a26f49ef4e27b8c26612929b0e (patch)
treea8b0d226e0d83ea4e3a8c27b091a7121dbb9638b /include/linux/lglock.h
parent8213a2f3eeafdecf06dd718cb4130372263f6067 (diff)
parent98f6ef64b15a48f15062aff5d143b5d9a6ae7711 (diff)
downloadtalos-op-linux-79360ddd73dfe9a26f49ef4e27b8c26612929b0e.tar.gz
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull pile 2 of vfs updates from Al Viro: "Stuff in this one - assorted fixes, lglock tidy-up, death to lock_super(). There'll be a VFS pile tomorrow (with patches from Jeff Layton, sanitizing getname() and related parts of audit and preparing for ESTALE fixes), but I'd rather push the stuff in this one ASAP - some of the bugs closed here are quite unpleasant." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: vfs: bogus warnings in fs/namei.c consitify do_mount() arguments lglock: add DEFINE_STATIC_LGLOCK() lglock: make the per_cpu locks static lglock: remove unused DEFINE_LGLOCK_LOCKDEP() MAX_LFS_FILESIZE definition for 64bit needs LL... tmpfs,ceph,gfs2,isofs,reiserfs,xfs: fix fh_len checking vfs: drop lock/unlock super ufs: drop lock/unlock super sysv: drop lock/unlock super hpfs: drop lock/unlock super fat: drop lock/unlock super ext3: drop lock/unlock super exofs: drop lock/unlock super dup3: Return an error when oldfd == newfd. fs: handle failed audit_log_start properly fs: prevent use after free in auditing when symlink following was denied
Diffstat (limited to 'include/linux/lglock.h')
-rw-r--r--include/linux/lglock.h19
1 files changed, 8 insertions, 11 deletions
diff --git a/include/linux/lglock.h b/include/linux/lglock.h
index f01e5f6d1f07..0d24e932db0b 100644
--- a/include/linux/lglock.h
+++ b/include/linux/lglock.h
@@ -32,20 +32,13 @@
#define br_write_lock(name) lg_global_lock(name)
#define br_write_unlock(name) lg_global_unlock(name)
-#define DEFINE_BRLOCK(name) DEFINE_LGLOCK(name)
+#define DEFINE_BRLOCK(name) DEFINE_LGLOCK(name)
+#define DEFINE_STATIC_BRLOCK(name) DEFINE_STATIC_LGLOCK(name)
#ifdef CONFIG_DEBUG_LOCK_ALLOC
#define LOCKDEP_INIT_MAP lockdep_init_map
-
-#define DEFINE_LGLOCK_LOCKDEP(name) \
- struct lock_class_key name##_lock_key; \
- struct lockdep_map name##_lock_dep_map; \
- EXPORT_SYMBOL(name##_lock_dep_map)
-
#else
#define LOCKDEP_INIT_MAP(a, b, c, d)
-
-#define DEFINE_LGLOCK_LOCKDEP(name)
#endif
struct lglock {
@@ -57,11 +50,15 @@ struct lglock {
};
#define DEFINE_LGLOCK(name) \
- DEFINE_LGLOCK_LOCKDEP(name); \
- DEFINE_PER_CPU(arch_spinlock_t, name ## _lock) \
+ static DEFINE_PER_CPU(arch_spinlock_t, name ## _lock) \
= __ARCH_SPIN_LOCK_UNLOCKED; \
struct lglock name = { .lock = &name ## _lock }
+#define DEFINE_STATIC_LGLOCK(name) \
+ static DEFINE_PER_CPU(arch_spinlock_t, name ## _lock) \
+ = __ARCH_SPIN_LOCK_UNLOCKED; \
+ static struct lglock name = { .lock = &name ## _lock }
+
void lg_lock_init(struct lglock *lg, char *name);
void lg_local_lock(struct lglock *lg);
void lg_local_unlock(struct lglock *lg);
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