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lockd: Remove FL_LOCKD flag

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Currently lockd identifies its own locks using the FL_LOCKD flag.  This
doesn't scale well to multiple lock managers--if we did this in nfsv4 too,
for example, we'd be left with only one free flag bit.

Instead, we just check whether the file manager ops (fl_lmops) set on this
lock are our own.

The only use for this is in nlm_traverse_locks, which uses it to find locks
that need cleaning up when freeing a host or a file.

In the long run it might be nice to do reference counting instead of
traversing all the locks like this....

Signed-off-by: J. Bruce Fields <[email protected]>
Signed-off-by: Trond Myklebust <[email protected]>
This commit is contained in:
J. Bruce Fields 2006-03-20 13:44:26 -05:00 • committed by Trond Myklebust
commit 7117bf3dfb
3 changed files with 1 additions and 4 deletions
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2
fs/lockd/svclock.c
View file

@ -313,8 +313,6 @@ nlmsvc_lock(struct svc_rqst *rqstp, struct nlm_file *file,
/* Get existing block (in case client is busy-waiting) */
block = nlmsvc_lookup_block(file, lock, 0);
lock->fl.fl_flags |= FL_LOCKD;
again:
/* Lock file against concurrent access */
down(&file->f_sema);

2
fs/lockd/svcsubs.c
View file

@ -182,7 +182,7 @@ nlm_traverse_locks(struct nlm_host *host, struct nlm_file *file, int action)
again:
file->f_locks = 0;
for (fl = inode->i_flock; fl; fl = fl->fl_next) {
if (!(fl->fl_flags & FL_LOCKD))
if (fl->fl_lmops != &nlmsvc_lock_operations)
continue;
/* update current lock count */