linux/poky.git/scripts/lib/wic/filemap.py, branch rocko-18.0.2

wic: code cleanup

2017-06-23T10:44:12+00:00

Split long lines. Removed unused imports. (From OE-Core rev: 49b704864c7db49e41a0b6bbdb8a2840e7fa232b) Signed-off-by: Ed Bartosh Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

filemap: calculate dst size correctly

2017-06-14T09:18:29+00:00

Fixed calculation of the dst file size using skip, seek and length parameters. Current code does it incorrectly which causes sparse_copy API to create unnecessary big output files. (From OE-Core rev: e6d709a6382e4b913612f597e66ad07b0e351d5f) Signed-off-by: Ed Bartosh Signed-off-by: Richard Purdie

filemap: check if dest is written for every block

2017-06-14T09:18:29+00:00

If lenght parameter is provided to sparse_copy call it's mandatory to check if the output file is fully written after reading unmapped block from input file. If it's not done then sparse_copy can write more data than specified length. (From OE-Core rev: 289b1767182982dfb6912e64481150697ba93e4d) Signed-off-by: Ed Bartosh Signed-off-by: Richard Purdie

filemap: change signature of sparse_copy function

2017-06-14T09:18:29+00:00

Renamed parameter offset->skip to match names of dd parameters. Changed affected sparse_copy calls. Added explanation of the parameters to docstring. (From OE-Core rev: 08e2f4e59816c5757686255b267b08cbc46fbd95) Signed-off-by: Ed Bartosh Signed-off-by: Richard Purdie

filemap: add parameter 'length' to sparse_copy

2017-06-14T09:18:28+00:00

Added parameter 'length' to specify amount of data to write into destination file. This is useful when only part of source file should be written into destination file. (From OE-Core rev: cc44e2eb3b5027a3531e6349937a23d73313b3c6) Signed-off-by: Ed Bartosh Signed-off-by: Richard Purdie

filemap: fix skip logic

2017-06-14T09:18:28+00:00

Fixed bug in processing 'skip' parameter: don't read input file if end of bmap block is less than skip Simplified logic of positioning to the start of data inside a partially skipped bmap block. (From OE-Core rev: c19f78a0713c8ac9d28b78f86c6d7b96157788f0) Signed-off-by: Ed Bartosh Signed-off-by: Richard Purdie

oe-selftest: test wic sparse_copy API

2017-04-12T14:09:57+00:00

Added new parameter 'api' to sparse_copy function to specify underlying filemap API to use. By default sparse_copy will try both available APIs. Added test case for sparse_copy to wic test suite. (From OE-Core rev: 88701cef6ba399e82f96ed1b0eef9a44ed8c1687) Signed-off-by: Ed Bartosh Signed-off-by: Richard Purdie

Revert "filemap: remove FilemapSeek class"

2017-04-05T22:22:13+00:00

FIEMAP API is not supported by tmpfs file system, but SEEK_HOLE/SEEK_DATA is supported. Returned back FilemapSeek class that implements support of SEEK_HOLE/SEEK_DATA API to make sparse_copy API working on tmpfs again. This reverts commit 6b80c13f7a82a312a3b981de5a56c66466ba1fac. (From OE-Core rev: e75bd6a7dd5c1b4bad039c35cf4a2ffc2f77c60a) Signed-off-by: Ed Bartosh Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

filemap: remove FilemapSeek class

2017-04-01T07:14:57+00:00

FIEMAP API was added to Linux kernel 2.6.28 back in 2008 SEEK_HOLE and SEEK_DATA API was added much letter. As FIEMAP is used by filemap module as a default API it's safe to remove FileMpSeek class as it's never used. [YOCTO #10618] (From OE-Core rev: 44e9406ea6e3263d2fb95e9d534a21f74f318480) Signed-off-by: Ed Bartosh Signed-off-by: Richard Purdie

wic: fix bug in sparse_copy

2017-03-23T13:19:49+00:00

sparse_copy creates output file that is smaller than input file when input file ends with unmapped blocks. Used truncate() when output file is created to ensure the size of output file will always be equal to the size of input file. (From OE-Core rev: 567186f995302a095a771baede4ff5034d1d1862) Signed-off-by: Ed Bartosh Signed-off-by: Richard Purdie