->permission() sanitizing: MAY_NOT_BLOCK

Duplicate the flags argument into mask bitmap. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-06-20 18:59:02 -04:00
parent 178ea73521
commit 1fc0f78ca9
3 changed files with 7 additions and 3 deletions
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -63,6 +63,7 @@ struct inodes_stat_t {
 #define MAY_ACCESS 16
 #define MAY_OPEN 32
 #define MAY_CHDIR 64
+#define MAY_NOT_BLOCK 128	/* called from RCU mode, don't block */

 /*
 * flags in file.f_mode.  Note that FMODE_READ and FMODE_WRITE must correspond