Add Linux 4.13 constants to bits/fcntl-linux.h.

This patch adds new interfaces (F_GET_RW_HINT etc., and associated
RW[FH]_WRITE_LIFE_*) from Linux 4.13 to bits/fcntl-linux.h
(conditional on __USE_GNU).

Tested for x86_64.

	* sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_GNU]
	(F_GET_RW_HINT): New macro.
	[__USE_GNU] (F_SET_RW_HINT): Likewise.
	[__USE_GNU] (F_GET_FILE_RW_HINT): Likewise.
	[__USE_GNU] (F_SET_FILE_RW_HINT): Likewise.
	[__USE_GNU] (RWF_WRITE_LIFE_NOT_SET): Likewise.
	[__USE_GNU] (RWH_WRITE_LIFE_NONE): Likewise.
	[__USE_GNU] (RWH_WRITE_LIFE_SHORT): Likewise.
	[__USE_GNU] (RWH_WRITE_LIFE_MEDIUM): Likewise.
	[__USE_GNU] (RWH_WRITE_LIFE_LONG): Likewise.
	[__USE_GNU] (RWH_WRITE_LIFE_EXTREME): Likewise.

diff --git a/ChangeLog b/ChangeLog
index dca63feedcf42142528274d8edd3736533405271..9f085b7e6a1eaf4951c9c1b2afa619c4ecc82093 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,17 @@
 2017-09-08  Joseph Myers  <joseph@codesourcery.com>
 
+       * sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_GNU]
+       (F_GET_RW_HINT): New macro.
+       [__USE_GNU] (F_SET_RW_HINT): Likewise.
+       [__USE_GNU] (F_GET_FILE_RW_HINT): Likewise.
+       [__USE_GNU] (F_SET_FILE_RW_HINT): Likewise.
+       [__USE_GNU] (RWF_WRITE_LIFE_NOT_SET): Likewise.
+       [__USE_GNU] (RWH_WRITE_LIFE_NONE): Likewise.
+       [__USE_GNU] (RWH_WRITE_LIFE_SHORT): Likewise.
+       [__USE_GNU] (RWH_WRITE_LIFE_MEDIUM): Likewise.
+       [__USE_GNU] (RWH_WRITE_LIFE_LONG): Likewise.
+       [__USE_GNU] (RWH_WRITE_LIFE_EXTREME): Likewise.
+
        * sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_GNU]
        (F_ADD_SEALS): New macro.
        [__USE_GNU] (F_GET_SEALS): Likewise.

diff --git a/sysdeps/unix/sysv/linux/bits/fcntl-linux.h b/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
index fc65fc2e4a53bd41dd3e2f13cbac0d6fd665de90..0c1a30303902294a7fb47fe09ea5a06d7a468fd9 100644 (file)
--- a/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
+++ b/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
@@ -204,6 +204,11 @@
 # define F_GETPIPE_SZ  1032    /* Set pipe page size array.  */
 # define F_ADD_SEALS   1033    /* Add seals to file.  */
 # define F_GET_SEALS   1034    /* Get seals for file.  */
+/* Set / get write life time hints.  */
+# define F_GET_RW_HINT 1035
+# define F_SET_RW_HINT 1036
+# define F_GET_FILE_RW_HINT    1037
+# define F_SET_FILE_RW_HINT    1038
 #endif
 #ifdef __USE_XOPEN2K8
 # define F_DUPFD_CLOEXEC 1030  /* Duplicate file descriptor with
@@ -281,6 +286,16 @@ struct f_owner_ex
 # define F_SEAL_WRITE  0x0008  /* Prevent writes.  */
 #endif
 
+#ifdef __USE_GNU
+/* Hint values for F_{GET,SET}_RW_HINT.  */
+# define RWF_WRITE_LIFE_NOT_SET        0
+# define RWH_WRITE_LIFE_NONE   1
+# define RWH_WRITE_LIFE_SHORT  2
+# define RWH_WRITE_LIFE_MEDIUM 3
+# define RWH_WRITE_LIFE_LONG   4
+# define RWH_WRITE_LIFE_EXTREME        5
+#endif
+
 /* Define some more compatibility macros to be backward compatible with
    BSD systems which did not managed to hide these kernel macros.  */
 #ifdef __USE_MISC