From 8ad81b316bc158746aee18aa7d7df44d3eb61871 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Tue, 17 Nov 2009 18:04:51 -0800 Subject: Fix sync_file_range on ppc/ppc64. I've noticed that sync_file_range is a stub on ppc/ppc64. The kernel on these arches provides sync_file_range2 syscall with swapped parameters. The following completely untested patch ought to fix this. --- ChangeLog | 8 ++++ .../sysv/linux/powerpc/powerpc64/sync_file_range.c | 44 ++++++++++++++++++++++ sysdeps/unix/sysv/linux/sync_file_range.c | 10 ++++- 3 files changed, 61 insertions(+), 1 deletion(-) create mode 100644 sysdeps/unix/sysv/linux/powerpc/powerpc64/sync_file_range.c diff --git a/ChangeLog b/ChangeLog index 0a6ae196a8..fd62431501 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,11 @@ +2009-11-16 Jakub Jelinek + + * sysdeps/unix/sysv/linux/sync_file_range.c (sync_file_range): + Implement using sync_file_range2 syscall if __NR_sync_file_range2 + is defined. + * sysdeps/unix/sysv/linux/powerpc/powerpc64/sync_file_range.c: New + file. + 2009-11-17 Paolo Bonzini * posix/bug-regex30.c: New file. diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/sync_file_range.c b/sysdeps/unix/sysv/linux/powerpc/powerpc64/sync_file_range.c new file mode 100644 index 0000000000..1ca4ce66df --- /dev/null +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/sync_file_range.c @@ -0,0 +1,44 @@ +/* Selective file content synch'ing. + Copyright (C) 2006, 2007, 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include +#include +#include + +#include +#include + + +#if defined __NR_sync_file_range2 +int +sync_file_range (int fd, __off64_t from, __off64_t to, unsigned int flags) +{ + return INLINE_SYSCALL (sync_file_range2, 4, fd, flags, from, to); +} +#else +int +sync_file_range (int fd, __off64_t from, __off64_t to, unsigned int flags) +{ + __set_errno (ENOSYS); + return -1; +} +stub_warning (sync_file_range) + +# include +#endif diff --git a/sysdeps/unix/sysv/linux/sync_file_range.c b/sysdeps/unix/sysv/linux/sync_file_range.c index 4e267a1602..41e08e0281 100644 --- a/sysdeps/unix/sysv/linux/sync_file_range.c +++ b/sysdeps/unix/sysv/linux/sync_file_range.c @@ -1,5 +1,5 @@ /* Selective file content synch'ing. - Copyright (C) 2006, 2007 Free Software Foundation, Inc. + Copyright (C) 2006, 2007, 2009 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -34,6 +34,14 @@ sync_file_range (int fd, __off64_t from, __off64_t to, unsigned int flags) __LONG_LONG_PAIR ((long) (to >> 32), (long) to), flags); } +#elif defined __NR_sync_file_range2 +int +sync_file_range (int fd, __off64_t from, __off64_t to, unsigned int flags) +{ + return INLINE_SYSCALL (sync_file_range2, 6, fd, flags, + __LONG_LONG_PAIR ((long) (from >> 32), (long) from), + __LONG_LONG_PAIR ((long) (to >> 32), (long) to)); +} #else int sync_file_range (int fd, __off64_t from, __off64_t to, unsigned int flags) -- cgit v1.2.3