diff options
Diffstat (limited to 'source3/smbd/fileio.c')
| -rw-r--r-- | source3/smbd/fileio.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/source3/smbd/fileio.c b/source3/smbd/fileio.c index 89f05092b4..a29336d3a2 100644 --- a/source3/smbd/fileio.c +++ b/source3/smbd/fileio.c @@ -440,6 +440,19 @@ len = %u\n",fsp->fd, (double)pos, (unsigned int)n, (double)wcp->offset, (unsigne } else { ssize_t ret = real_write_file(fsp, data, pos, n); + /* + * If the write overlaps the entire cache, then + * discard the current contents of the cache. + * Fix from Rasmus Borup Hansen rbh@math.ku.dk. + */ + + if ((pos <= wcp->offset) && + (pos + n >= wcp->offset + wcp->data_size) ) { + DEBUG(9,("write_file: discarding overwritten write \ +cache: fd = %d, off=%.0f, size=%u\n", fsp->fd, (double)wcp->offset, (unsigned int)wcp->data_size )); + wcp->data_size = 0; + } + DO_PROFILE_INC(writecache_direct_writes); if (ret == -1) return ret; |