Without this patch, hv_fcopy_daemon's hv_copy_data() -> pwrite() will fail for >2GB file offset. Signed-off-by: Alex Ng <alexng@xxxxxxxxxxxxx> Signed-off-by: Dexuan Cui <decui@xxxxxxxxxxxxx> Cc: K. Y. Srinivasan <kys@xxxxxxxxxxxxx> --- I tested the patch on x86_32 and x86_64 Ubuntu 15.04 nightly build(this is a generic issue and I think all the existing x86_32 distros have the issue): without the patch, the fcopy with a >2GB file always failed and with the patch I was able to fcopy a file of 40GB successfully. "getconf LFS_CFLAGS" returns "-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" on x86_32 and returns an empty string on x86_64. tools/hv/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/hv/Makefile b/tools/hv/Makefile index 99ffe61..a8ab795 100644 --- a/tools/hv/Makefile +++ b/tools/hv/Makefile @@ -3,7 +3,7 @@ CC = $(CROSS_COMPILE)gcc PTHREAD_LIBS = -lpthread WARNINGS = -Wall -Wextra -CFLAGS = $(WARNINGS) -g $(PTHREAD_LIBS) +CFLAGS = $(WARNINGS) -g $(PTHREAD_LIBS) $(shell getconf LFS_CFLAGS) all: hv_kvp_daemon hv_vss_daemon hv_fcopy_daemon %: %.c -- 1.9.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
