upstream/openldap
1
0
Fork 0
mirror of https://git.openldap.org/openldap/openldap.git synced 2026-05-28 04:35:57 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

ITS#10054 lmdb: break up large overflow page writes

Browse source 
We were ignoring MAX_WRITE when a single overflow page was larger.
Now we guarantee that all writes are <= MAX_WRITE (1GB).
This commit is contained in:
Howard Chu 2026-04-15 15:14:37 +01:00
parent 10161b20fe
commit b0facd0288
1 changed files with 9 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
libraries/liblmdb/mdb.c
View file

@ -4198,6 +4198,14 @@ retry_write:
wres = pwritev(fd, iov, n, wpos);
#else
if (n == 1) {
while (wsize > MAX_WRITE) {
wsize -= MAX_WRITE;
wres = pwrite(fd, iov[0].iov_base, MAX_WRITE, wpos);
if (wres != MAX_WRITE)
goto bad_write;;
wpos += MAX_WRITE;
iov[0].iov_base += MAX_WRITE;
}
wres = pwrite(fd, iov[0].iov_base, wsize, wpos);
} else {
retry_seek:
@ -4213,6 +4221,7 @@ retry_seek:
}
}
#endif
bad_write:
if (wres != wsize) {
if (wres < 0) {
rc = ErrCode();