| … | |
… | |
| 344 | int count = req->int3; |
344 | int count = req->int3; |
| 345 | |
345 | |
| 346 | req->flags |= EIO_FLAG_PTR1_FREE; |
346 | req->flags |= EIO_FLAG_PTR1_FREE; |
| 347 | |
347 | |
| 348 | /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */ |
348 | /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */ |
| 349 | /* increase in 3.5kb steps */ |
349 | /* increase in fixed steps */ |
| 350 | if (count < 0) |
350 | if (count < 0) |
| 351 | count = 8; |
351 | count = 8; |
| 352 | |
352 | |
| 353 | fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count); |
353 | fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count); |
| 354 | errno = ENOMEM; |
354 | errno = ENOMEM; |
| … | |
… | |
| 407 | |
407 | |
| 408 | for (count = 0; count < incmap->fm_mapped_extents; ++count) |
408 | for (count = 0; count < incmap->fm_mapped_extents; ++count) |
| 409 | { |
409 | { |
| 410 | struct fiemap_extent *e = incmap->fm_extents + count; |
410 | struct fiemap_extent *e = incmap->fm_extents + count; |
| 411 | |
411 | |
|
|
412 | fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e; |
|
|
413 | |
| 412 | if (e->fe_logical + e->fe_length >= end_offset) |
414 | if (e->fe_logical + e->fe_length >= end_offset) |
| 413 | goto done; |
415 | goto done; |
| 414 | |
|
|
| 415 | fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e; |
|
|
| 416 | |
416 | |
| 417 | if (e->fe_flags & FIEMAP_EXTENT_LAST) |
417 | if (e->fe_flags & FIEMAP_EXTENT_LAST) |
| 418 | goto done; |
418 | goto done; |
| 419 | |
419 | |
| 420 | } |
420 | } |
