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wic/filemap: Drop the unused get_unmapped_ranges()

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This method is not used by any code, so drop it.

(From OE-Core rev: 6513fd9302b9989f97fc9d95e76e06ad5d266774)

Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Kevin Hao 2020-07-14 08:53:22 +08:00 committed by Richard Purdie
parent 9818a04678
commit 2212d938c5
1 changed files with 2 additions and 36 deletions
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38
scripts/lib/wic/filemap.py
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@ -155,15 +155,6 @@ class _FilemapBase(object):
raise Error("the method is not implemented")
def get_unmapped_ranges(self, start, count): # pylint: disable=W0613,R0201
"""
This method has has to be implemented by child classes. Just like
'get_mapped_ranges()', but yields unmapped block ranges instead
(holes).
"""
raise Error("the method is not implemented")
# The 'SEEK_HOLE' and 'SEEK_DATA' options of the file seek system call
_SEEK_DATA = 3
@ -258,9 +249,8 @@ class FilemapSeek(_FilemapBase):
def _get_ranges(self, start, count, whence1, whence2):
"""
This function implements 'get_mapped_ranges()' and
'get_unmapped_ranges()' depending on what is passed in the 'whence1'
and 'whence2' arguments.
This function implements 'get_mapped_ranges()' depending
on what is passed in the 'whence1' and 'whence2' arguments.
"""
assert whence1 != whence2
@ -290,12 +280,6 @@ class FilemapSeek(_FilemapBase):
% (start, count, start + count - 1))
return self._get_ranges(start, count, _SEEK_DATA, _SEEK_HOLE)
def get_unmapped_ranges(self, start, count):
"""Refer the '_FilemapBase' class for the documentation."""
self._log.debug("FilemapSeek: get_unmapped_ranges(%d, %d(%d))"
% (start, count, start + count - 1))
return self._get_ranges(start, count, _SEEK_HOLE, _SEEK_DATA)
# Below goes the FIEMAP ioctl implementation, which is not very readable
# because it deals with the rather complex FIEMAP ioctl. To understand the
@ -485,24 +469,6 @@ class FilemapFiemap(_FilemapBase):
% (first_prev, last_prev))
yield (first_prev, last_prev)
def get_unmapped_ranges(self, start, count):
"""Refer the '_FilemapBase' class for the documentation."""
self._log.debug("FilemapFiemap: get_unmapped_ranges(%d, %d(%d))"
% (start, count, start + count - 1))
hole_first = start
for first, last in self._do_get_mapped_ranges(start, count):
if first > hole_first:
self._log.debug("FilemapFiemap: yielding range (%d, %d)"
% (hole_first, first - 1))
yield (hole_first, first - 1)
hole_first = last + 1
if hole_first < start + count:
self._log.debug("FilemapFiemap: yielding range (%d, %d)"
% (hole_first, start + count - 1))
yield (hole_first, start + count - 1)
def filemap(image, log=None):
"""
Create and return an instance of a Filemap class - 'FilemapFiemap' or