From: erik quanstrom <quanstro@quanstro.net>
To: Michael Baldwin <michael@cibernet.com>
Subject: Re: [9fans] 9pserve question
Date: Sat, 3 Dec 2005 11:00:23 -0600 [thread overview]
Message-ID: <20051203170023.C0E7318AE27@dexter-peak.quanstro.net> (raw)
In-Reply-To: <6114CFD8-C785-425A-AEDB-5397D83E069C@cibernet.com>
good question.
i believe that this is the problem -- and it's not specific to the linux
9p "filesystem. fs/namei.c has this function which is called when trying
to open a file:
i didn't follow up on what put_write_access() does but i'm betting that
that generates the wstat.
1324 int may_open(struct nameidata *nd, int acc_mode, int flag)
1325 {
[...]
1379 if (flag & O_TRUNC) {
1380 error = get_write_access(inode);
1381 if (error)
1382 return error;
1383
1384 /*
1385 * Refuse to truncate files with mandatory locks held on them.
1386 */
1387 error = locks_verify_locked(inode);
1388 if (!error) {
1389 DQUOT_INIT(inode);
1390
1391 error = do_truncate(dentry, 0);
1392 }
1393 put_write_access(inode);
1394 if (error)
1395 return error;
[...]
- erik
Michael Baldwin <michael@cibernet.com> writes
|
| why is it doing Tstat and Twstat at all? i would have thought it
| would be Twalk, Topen, Twrite.
|
next prev parent reply other threads:[~2005-12-03 17:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-03 3:13 erik quanstrom
2005-12-03 14:26 ` Russ Cox
2005-12-03 14:35 ` erik quanstrom
2005-12-03 14:54 ` erik quanstrom
2005-12-03 15:53 ` erik quanstrom
[not found] ` <6114CFD8-C785-425A-AEDB-5397D83E069C@cibernet.com>
2005-12-03 17:00 ` erik quanstrom [this message]
2005-12-03 17:03 ` erik quanstrom
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