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HADOOP-10962. Flags for posix_fadvise are not valid in some architectures (David Villegas via Colin Patrick McCabe) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1617621 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Colin McCabe 2014-08-12 23:03:06 +00:00
parent 4239695588
commit f7ac928a7c
2 changed files with 33 additions and 1 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -566,6 +566,9 @@ Release 2.6.0 - UNRELEASED
HADOOP-10851. NetgroupCache does not remove group memberships. (Benoy
Antony via Arpit Agarwal)
HADOOP-10962. Flags for posix_fadvise are not valid in some architectures
(David Villegas via Colin Patrick McCabe)
Release 2.5.0 - UNRELEASED
INCOMPATIBLE CHANGES

31
hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/nativeio/NativeIO.c
View File

@ -171,6 +171,35 @@ static void nioe_deinit(JNIEnv *env) {
nioe_ctor = NULL;
}
/*
* Compatibility mapping for fadvise flags. Return the proper value from fnctl.h.
* If the value is not known, return the argument unchanged.
*/
static int map_fadvise_flag(jint flag) {
switch(flag) {
case org_apache_hadoop_io_nativeio_NativeIO_POSIX_POSIX_FADV_NORMAL:
return POSIX_FADV_NORMAL;
break;
case org_apache_hadoop_io_nativeio_NativeIO_POSIX_POSIX_FADV_RANDOM:
return POSIX_FADV_RANDOM;
break;
case org_apache_hadoop_io_nativeio_NativeIO_POSIX_POSIX_FADV_SEQUENTIAL:
return POSIX_FADV_SEQUENTIAL;
break;
case org_apache_hadoop_io_nativeio_NativeIO_POSIX_POSIX_FADV_WILLNEED:
return POSIX_FADV_WILLNEED;
break;
case org_apache_hadoop_io_nativeio_NativeIO_POSIX_POSIX_FADV_DONTNEED:
return POSIX_FADV_DONTNEED;
break;
case org_apache_hadoop_io_nativeio_NativeIO_POSIX_POSIX_FADV_NOREUSE:
return POSIX_FADV_NOREUSE;
break;
default:
return flag;
}
}
/*
* private static native void initNative();
*
@ -303,7 +332,7 @@ Java_org_apache_hadoop_io_nativeio_NativeIO_00024POSIX_posix_1fadvise(
PASS_EXCEPTIONS(env);
int err = 0;
if ((err = posix_fadvise(fd, (off_t)offset, (off_t)len, flags))) {
if ((err = posix_fadvise(fd, (off_t)offset, (off_t)len, map_fadvise_flag(flags)))) {
#ifdef __FreeBSD__
throw_ioe(env, errno);
#else