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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-02-22 17:04:52 -0800
committerIngo Molnar <mingo@elte.hu>2010-02-25 10:34:48 +0100
commit7dc52157982ab771f40e3c0b7dc55b954c3c2d19 (patch)
treea41e39174d9535f0c678eb36249ceee4a1775d6b /fs/file.c
parent497f0ab39cd25bed317b29482c147c967f7ecd1f (diff)
downloadop-kernel-dev-7dc52157982ab771f40e3c0b7dc55b954c3c2d19.zip
op-kernel-dev-7dc52157982ab771f40e3c0b7dc55b954c3c2d19.tar.gz
vfs: Apply lockdep-based checking to rcu_dereference() uses
Add lockdep-ified RCU primitives to alloc_fd(), files_fdtable() and fcheck_files(). Cc: Alexander Viro <viro@zeniv.linux.org.uk> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: mathieu.desnoyers@polymtl.ca Cc: josh@joshtriplett.org Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: rostedt@goodmis.org Cc: Valdis.Kletnieks@vt.edu Cc: dhowells@redhat.com Cc: Alexander Viro <viro@zeniv.linux.org.uk> LKML-Reference: <1266887105-1528-8-git-send-email-paulmck@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/file.c')
-rw-r--r--fs/file.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/file.c b/fs/file.c
index 87e1290..38039af 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -478,7 +478,7 @@ repeat:
error = fd;
#if 1
/* Sanity check */
- if (rcu_dereference(fdt->fd[fd]) != NULL) {
+ if (rcu_dereference_raw(fdt->fd[fd]) != NULL) {
printk(KERN_WARNING "alloc_fd: slot %d not NULL!\n", fd);
rcu_assign_pointer(fdt->fd[fd], NULL);
}
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