X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=include%2Flinux%2Ffdtable.h;h=8dad10c21586bf643e185c01eb09de031bf6d928;hp=82163c4b32c9fa89cd2869e369f0a5c39239c5c1;hb=fd15ae01c5b1c73f2c992afd219bd18856ae3e48;hpb=279b1e0fd90ef63c7acb34a5ca573f065a6fefb4

diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
index 82163c4b32c9..8dad10c21586 100644
--- a/include/linux/fdtable.h
+++ b/include/linux/fdtable.h
@@ -9,6 +9,7 @@
 #include <linux/compiler.h>
 #include <linux/spinlock.h>
 #include <linux/rcupdate.h>
+#include <linux/nospec.h>
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/fs.h>
@@ -38,6 +39,36 @@ struct fdtable {
 	struct fdtable *next;
 };
 
+static inline void __set_close_on_exec(int fd, struct fdtable *fdt)
+{
+	FD_SET(fd, fdt->close_on_exec);
+}
+
+static inline void __clear_close_on_exec(int fd, struct fdtable *fdt)
+{
+	FD_CLR(fd, fdt->close_on_exec);
+}
+
+static inline bool close_on_exec(int fd, const struct fdtable *fdt)
+{
+	return FD_ISSET(fd, fdt->close_on_exec);
+}
+
+static inline void __set_open_fd(int fd, struct fdtable *fdt)
+{
+	FD_SET(fd, fdt->open_fds);
+}
+
+static inline void __clear_open_fd(int fd, struct fdtable *fdt)
+{
+	FD_CLR(fd, fdt->open_fds);
+}
+
+static inline bool fd_is_open(int fd, const struct fdtable *fdt)
+{
+	return FD_ISSET(fd, fdt->open_fds);
+}
+
 /*
  * Open file table structure
  */
@@ -85,8 +116,10 @@ static inline struct file * fcheck_files(struct files_struct *files, unsigned in
 	struct file * file = NULL;
 	struct fdtable *fdt = files_fdtable(files);
 
-	if (fd < fdt->max_fds)
+	if (fd < fdt->max_fds) {
+		fd = array_index_nospec(fd, fdt->max_fds);
 		file = rcu_dereference_check_fdtable(files, fdt->fd[fd]);
+	}
 	return file;
 }