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8293004: (fs) FileChannel.transferXXX use of copy_file_range needs fallback handling for ENOSYS

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Reviewed-by: stuefe, alanb, bpb
This commit is contained in:
Florian Weimer 2022-08-30 15:23:35 +00:00 committed by Alan Bateman
parent b3450e930e
commit 343333abcf
1 changed files with 3 additions and 0 deletions
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3
src/java.base/unix/native/libnio/ch/FileChannelImpl.c
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@ -190,6 +190,7 @@ Java_sun_nio_ch_FileChannelImpl_transferTo0(JNIEnv *env, jobject this,
case EINTR:
return IOS_INTERRUPTED;
case EINVAL:
case ENOSYS:
case EXDEV:
// ignore and try sendfile()
break;
@ -307,6 +308,8 @@ Java_sun_nio_ch_FileChannelImpl_transferFrom0(JNIEnv *env, jobject this,
if (n < 0) {
if (errno == EAGAIN)
return IOS_UNAVAILABLE;
if (errno == ENOSYS)
return IOS_UNSUPPORTED_CASE;
if ((errno == EBADF || errno == EINVAL || errno == EXDEV) &&
((ssize_t)count >= 0))
return IOS_UNSUPPORTED_CASE;