| … | |
… | |
| 198 | || !fiemap->fm_mapped_extents /* no more extents */ |
198 | || !fiemap->fm_mapped_extents /* no more extents */ |
| 199 | || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */) |
199 | || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */) |
| 200 | goto done; |
200 | goto done; |
| 201 | |
201 | |
| 202 | /* else we have to loop - |
202 | /* else we have to loop - |
| 203 | * it would be tempting (atcually I tried that first) to just query the |
203 | * it would be tempting (actually I tried that first) to just query the |
| 204 | * number of extents needed, but linux often feels like not returning all |
204 | * number of extents needed, but linux often feels like not returning all |
| 205 | * extents, without telling us it left any out. this complicates |
205 | * extents, without telling us it left any out. this complicates |
| 206 | * this quite a bit. |
206 | * this quite a bit. |
| 207 | */ |
207 | */ |
| 208 | |
208 | |
| … | |
… | |
| 220 | incmap->fm_flags = fiemap->fm_flags; |
220 | incmap->fm_flags = fiemap->fm_flags; |
| 221 | incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent); |
221 | incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent); |
| 222 | |
222 | |
| 223 | if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0) |
223 | if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0) |
| 224 | return; |
224 | return; |
|
|
225 | |
|
|
226 | if (!incmap->fm_mapped_extents) |
|
|
227 | goto done; |
| 225 | |
228 | |
| 226 | count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents; |
229 | count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents; |
| 227 | fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count); |
230 | fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count); |
| 228 | errno = ENOMEM; |
231 | errno = ENOMEM; |
| 229 | if (!fiemap) |
232 | if (!fiemap) |
