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| author | Jim Meyering <jim@meyering.net> | 1999-07-24 09:40:23 +0000 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 1999-07-24 09:40:23 +0000 |
| commit | 8082ce8f5363bc33028d162d1c7a7e3b2c0950e9 (patch) | |
| tree | 0fbc0153786829a9ad735471effc580a5ff51a42 /src/dd.c | |
| parent | 7b5a5af07f4289bebabb4a176fc09a6f4ba6a7ab (diff) | |
| download | coreutils-8082ce8f5363bc33028d162d1c7a7e3b2c0950e9.tar.xz | |
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Diffstat (limited to 'src/dd.c')
| -rw-r--r-- | src/dd.c | 7 |
1 files changed, 6 insertions, 1 deletions
@@ -864,7 +864,12 @@ dd_copy (void) page boundary to cover all bases. Note that due to the swab algorithm, we must have at least one byte in the page before the input buffer; thus we allocate 2 pages of slop in the - real buffer. 8k above the blocksize shouldn't bother anyone. */ + real buffer. 8k above the blocksize shouldn't bother anyone. + + The page alignment is necessary on any linux system that supports + either the SGI raw I/O patch or Steven Tweedies raw I/O patch. + It is necessary when accessing raw (i.e. character special) disk + devices on Unixware or other SVR4-derived system. */ real_buf = (unsigned char *) xmalloc (input_blocksize + 2 * SWAB_ALIGN_OFFSET |