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| author | Jeremy Allison <jra@samba.org> | 2002-10-03 18:10:59 +0000 |
|---|---|---|
| committer | Jeremy Allison <jra@samba.org> | 2002-10-03 18:10:59 +0000 |
| commit | a4f7b7bec191c1603f004a14d5b8b49e99305f48 (patch) | |
| tree | 819a6b15040068748ee022a94ed7517cbaec8587 | |
| parent | ab8b6bd10b8729900c30b30db55e9239aa03f7cf (diff) | |
| download | samba-a4f7b7bec191c1603f004a14d5b8b49e99305f48.tar.gz samba-a4f7b7bec191c1603f004a14d5b8b49e99305f48.tar.bz2 samba-a4f7b7bec191c1603f004a14d5b8b49e99305f48.zip | |
Write cache bugfix from Rasmus Borup Hansen, system adm. Email: rbh@math.ku.dk
Jeremy.
(This used to be commit d40a14dbb0ec233f7a2190df1845b039072c4b84)
| -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; |