On Tue, Jan 09, 2018 at 04:35:24PM +0300, Dogukan Ergun wrote: > Under some conditions, ioctl FIGETBSZ can't return real value. > We can try to use fallback via os.stat() to get block size. >
Thank you for the patch! +1 > Source of patch: > https://github.com/intel/bmap-tools/commit/17365f4fe9089df7ee9800a2a0ced177ec4798a4 > > Signed-off-by: Dogukan Ergun <dogukan.er...@gmail.com> > --- > scripts/lib/wic/filemap.py | 10 +++++++++- > 1 file changed, 9 insertions(+), 1 deletion(-) > > diff --git a/scripts/lib/wic/filemap.py b/scripts/lib/wic/filemap.py > index 77e32b9..a72fa09 100644 > --- a/scripts/lib/wic/filemap.py > +++ b/scripts/lib/wic/filemap.py > @@ -37,7 +37,15 @@ def get_block_size(file_obj): > # Get the block size of the host file-system for the image file by > calling > # the FIGETBSZ ioctl (number 2). > binary_data = fcntl.ioctl(file_obj, 2, struct.pack('I', 0)) > - return struct.unpack('I', binary_data)[0] > + bsize = struct.unpack('I', binary_data)[0] > + if not bsize: > + import os > + stat = os.fstat(file_obj.fileno()) > + if hasattr(stat, 'st_blksize'): > + bsize = stat.st_blksize > + else: > + raise IOError("Unable to determine block size") > + return bsize > > class ErrorNotSupp(Exception): > """ > -- > 2.7.4 > > -- > _______________________________________________ > Openembedded-core mailing list > Openembedded-core@lists.openembedded.org > http://lists.openembedded.org/mailman/listinfo/openembedded-core -- -- Regards, Ed -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
