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* [glibc/release/2.38/master] io: Fix record locking contants for powerpc64 with __USE_FILE_OFFSET64
@ 2023-09-08 5:28 Aurelien Jarno
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From: Aurelien Jarno @ 2023-09-08 5:28 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5bdef6f27c91f45505ed5444147be4ed0e9bc3c7
commit 5bdef6f27c91f45505ed5444147be4ed0e9bc3c7
Author: Aurelien Jarno <aurelien@aurel32.net>
Date: Mon Aug 28 23:30:37 2023 +0200
io: Fix record locking contants for powerpc64 with __USE_FILE_OFFSET64
Commit 5f828ff824e3b7cd1 ("io: Fix F_GETLK, F_SETLK, and F_SETLKW for
powerpc64") fixed an issue with the value of the lock constants on
powerpc64 when not using __USE_FILE_OFFSET64, but it ended-up also
changing the value when using __USE_FILE_OFFSET64 causing an API change.
Fix that by also checking that define, restoring the pre
4d0fe291aed3a476a commit values:
Default values:
- F_GETLK: 5
- F_SETLK: 6
- F_SETLKW: 7
With -D_FILE_OFFSET_BITS=64:
- F_GETLK: 12
- F_SETLK: 13
- F_SETLKW: 14
At the same time, it has been noticed that there was no test for io lock
with __USE_FILE_OFFSET64, so just add one.
Tested on x86_64-linux-gnu, i686-linux-gnu and
powerpc64le-unknown-linux-gnu.
Resolves: BZ #30804.
Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
(cherry picked from commit 434bf72a94de68f0cc7fbf3c44bf38c1911b70cb)
Diff:
---
NEWS | 2 ++
io/Makefile | 1 +
io/tst-fcntl-lock-lfs.c | 2 ++
sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h | 2 +-
4 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/NEWS b/NEWS
index c339cb444e..8156572cdf 100644
--- a/NEWS
+++ b/NEWS
@@ -133,6 +133,8 @@ The following bugs are resolved with this release:
[30579] malloc: trim_threshold in realloc lead to high memory usage
[30662] nscd: Group and password cache use errno in place of errval
[30723] posix_memalign repeatedly scans long bin lists
+ [30804] F_GETLK, F_SETLK, and F_SETLKW value change for powerpc64 with
+ -D_FILE_OFFSET_BITS=64
\f
Version 2.37
diff --git a/io/Makefile b/io/Makefile
index 6ccc0e8691..8a3c83a3bb 100644
--- a/io/Makefile
+++ b/io/Makefile
@@ -192,6 +192,7 @@ tests := \
tst-fchownat \
tst-fcntl \
tst-fcntl-lock \
+ tst-fcntl-lock-lfs \
tst-fstatat \
tst-fts \
tst-fts-lfs \
diff --git a/io/tst-fcntl-lock-lfs.c b/io/tst-fcntl-lock-lfs.c
new file mode 100644
index 0000000000..f2a909fb02
--- /dev/null
+++ b/io/tst-fcntl-lock-lfs.c
@@ -0,0 +1,2 @@
+#define _FILE_OFFSET_BITS 64
+#include <io/tst-fcntl-lock.c>
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h b/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h
index f7615a447e..d8a291a331 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h
@@ -33,7 +33,7 @@
# define __O_LARGEFILE 0200000
#endif
-#if __WORDSIZE == 64
+#if __WORDSIZE == 64 && !defined __USE_FILE_OFFSET64
# define F_GETLK 5
# define F_SETLK 6
# define F_SETLKW 7
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2023-09-08 5:28 [glibc/release/2.38/master] io: Fix record locking contants for powerpc64 with __USE_FILE_OFFSET64 Aurelien Jarno
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