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-rw-r--r--include/linux/fs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 0c15d5e..60c1fe6 100644
--- 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
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