Checking for fdatasync uses the same approach as the qemu configure
script. The relevant commit is d1722a27f552a22561104210e0afad4577878e53.
Here is a copy of the commit message which explains the check:
Under Darwin, a symbol exists for the fdatasync() function, so that our
link test succeeds. However _POSIX_SYNCHRONIZED_IO is set to '-1'.
According to POSIX:2008, a value of -1 means the feature is not
supported.
A value of 0 means supported at compilation time, and a value greater 0
means supported at both compilation and run time.
Enable fdatasync() only if _POSIX_SYNCHRONIZED_IO is '>0'.
Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
Make sure the requested length is below the maximum pipe size for now,
since we're only using one pipe and splicing once into and out of
it. The default max is 1MB on recent kernels, so this isn't such a
terrible limitation.
To get around this we could use multiple pipes, or keep both source and
destination fds open at the same time and call splice many times. This
is more usual usage for splice, but would require a lot more work to
restructure the filestore and messenger to handle it.
Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
check for the existence of boost_program_options library in
configure.ac since several files need that library
Signed-off-by: Xing Lin <xinglin@cs.utah.edu>
Selects __PRETTY_FUNCTION__ or __func__. Linux assumes GNU, and chooses
__PRETTY_FUNCTION__ if gcc/g++ versions are favorable.
This also includes a fix in ax_c_var_func.m4:
AC_TRY_COMPILE will wrap the test in main{}, and then GCC will complain
about nested functions. Just use the original main{} body.
diff --git a/m4/ax_c_var_func.m4 b/m4/ax_c_var_func.m4
index 0ad7d2b..8b57563 100644
--- a/m4/ax_c_var_func.m4
+++ b/m4/ax_c_var_func.m4
@@ -57,9 +57,9 @@ AC_DEFUN([AX_C_VAR_FUNC],
[AC_REQUIRE([AC_PROG_CC])
AC_CACHE_CHECK(whether $CC recognizes __func__, ac_cv_c_var_func,
AC_TRY_COMPILE(,
-[int main() {
+[
char *s = __func__;
-}],
+],
AC_DEFINE(HAVE_FUNC,,
[Define if the C complier supports __func__]) ac_cv_c_var_func=yes,
ac_cv_c_var_func=no) )
Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
Creates a test that checks explicitly for res_nquery, which can be a
macro in resolv.h. Defines RESOLV_LIBS that contains any libraries that
need to be linked against.
Notes from later fix:
Based on the 2013-09-30 version of wip-port. On FreeBSD, one must
include netinet/in.h to get the definitions for stuff in resolv.h.
Also, resolv.h's functions are part of libc instead of libresolv.
Signed-off-by: Alan Somers <asomers@gmail.com>
Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
Function `get_process_name` has platform specific dependencies. Check
for Linux prctl function and correct command flag.
Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
Loop through a list of sensible default
locations for a JDK, stopping if a
workable JDK is found.
Also, add support for CentOS' default
java location.
Signed-off-by: Joe Buck <jbbuck@gmail.com>
The in-tree Hadoop shim was a combination of libcephfs wrapper, and the
bits to support Hadoop. This has been replaced by src/java that
implements generic libcephfs wrappers, and externally, the hadoop shim
(see docs).
Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
This is from Intel's ISA-L library and licensed under BSD 3-clause.
It needs to build with yasm, which means we go through all sorts of pain
to make this work with libtool:
- strip out args it doesn't understand with yasm-wrapper
- detect whether it is recent enough during configure
The code is conditional on:
- build-time support (yasm)
- run-time support (sse4.2)
Signed-off-by: Sage Weil <sage@inktank.com>
This patch adds ZFS parallel journal support. It uses libzfs provided by
zfsonlinux to access ZFS' functionalities. To enable ZFS parallel journal
support, compile ceph by:
./configure --with-libzfs LIBZFS_CFLAGS="-I<libzfs header> -I<libspl header>"
make
Add following line to osd section of ceph.conf
filestore zfs_snap = 1
Note: ZFS (no mater parallel journal is enabled or not) does not support
direct IO. To use it as backend FS for OSD, you need to add following line
to osd section of ceph.conf
journal aio = 0
journal dio = 0
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Remove the rc suffix since RPM complains about. For rc release
builds the "rc" in the git describe string is suffcient for
everyhting but RPM. For rc release builds (i.e. not gitbuilder)
add a flag to the spec file.
Signed-off-by: Gary Lowell <gary.lowell@inktank.com>
The ac_check_func fails because -lfuse is not in LIBS. This also enables
code that wasn't being compiled, and fixes compiler errors that
resulted.
Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
Reviewed-by: Sage Weil <sage@inktank.com>
