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-rw-r--r--include/linux/fs.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 134b3206824..25610205c90 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -27,6 +27,10 @@
#define BLOCK_SIZE_BITS 10
#define BLOCK_SIZE (1<<BLOCK_SIZE_BITS)
+#define SEEK_SET 0 /* seek relative to beginning of file */
+#define SEEK_CUR 1 /* seek relative to current file position */
+#define SEEK_END 2 /* seek relative to end of file */
+
/* And dynamically-tunable limits and defaults: */
struct files_stat_struct {
int nr_files; /* read only */
@@ -716,6 +720,7 @@ extern spinlock_t files_lock;
#define FL_POSIX 1
#define FL_FLOCK 2
#define FL_ACCESS 8 /* not trying to lock, just looking */
+#define FL_EXISTS 16 /* when unlocking, test for existence */
#define FL_LEASE 32 /* lease held on this file */
#define FL_CLOSE 64 /* unlock on close */
#define FL_SLEEP 128 /* A blocking lock */