diff options
author | Mark Fasheh <mark.fasheh@oracle.com> | 2006-09-21 16:51:28 -0700 |
---|---|---|
committer | Mark Fasheh <mark.fasheh@oracle.com> | 2006-09-24 13:50:45 -0700 |
commit | 0027dd5bc213bc639e09dd002a4ab56bd18317c3 (patch) | |
tree | b41612706b25e8be6aa22f8423cc92a95a2337dc /fs/ocfs2/dcache.c | |
parent | 1ba9da2ffa54b56a6346746248bfa38124d499a6 (diff) | |
download | linux-stable-0027dd5bc213bc639e09dd002a4ab56bd18317c3.tar.gz linux-stable-0027dd5bc213bc639e09dd002a4ab56bd18317c3.tar.bz2 linux-stable-0027dd5bc213bc639e09dd002a4ab56bd18317c3.zip |
ocfs2: Remove special casing for inode creation in ocfs2_dentry_attach_lock()
We can't use LKM_LOCAL for new dentry locks because an unlink and subsequent
re-create of a name/inode pair may result in the lock still being mastered
somewhere in the cluster.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/dcache.c')
-rw-r--r-- | fs/ocfs2/dcache.c | 39 |
1 files changed, 9 insertions, 30 deletions
diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c index 18a31906316e..014e73978dac 100644 --- a/fs/ocfs2/dcache.c +++ b/fs/ocfs2/dcache.c @@ -183,9 +183,6 @@ DEFINE_SPINLOCK(dentry_attach_lock); * The dir cluster lock (held at either PR or EX mode) protects us * from unlink and rename on other nodes. * - * The 'create' flag tells us whether we're doing this as a result of - * a file creation. - * * A dput() can happen asynchronously due to pruning, so we cover * attaching and detaching the dentry lock with a * dentry_attach_lock. @@ -199,16 +196,15 @@ DEFINE_SPINLOCK(dentry_attach_lock); */ int ocfs2_dentry_attach_lock(struct dentry *dentry, struct inode *inode, - u64 parent_blkno, - int create) + u64 parent_blkno) { int ret; struct dentry *alias; struct ocfs2_dentry_lock *dl = dentry->d_fsdata; - mlog(0, "Attach \"%.*s\", parent %llu, create %d, fsdata: %p\n", + mlog(0, "Attach \"%.*s\", parent %llu, fsdata: %p\n", dentry->d_name.len, dentry->d_name.name, - (unsigned long long)parent_blkno, create, dl); + (unsigned long long)parent_blkno, dl); /* * Negative dentry. We ignore these for now. @@ -242,10 +238,9 @@ int ocfs2_dentry_attach_lock(struct dentry *dentry, * since we have it pinned, so our reference is safe. */ dl = alias->d_fsdata; - mlog_bug_on_msg(!dl, "parent %llu, ino %llu, create %d\n", + mlog_bug_on_msg(!dl, "parent %llu, ino %llu\n", (unsigned long long)parent_blkno, - (unsigned long long)OCFS2_I(inode)->ip_blkno, - create); + (unsigned long long)OCFS2_I(inode)->ip_blkno); mlog_bug_on_msg(dl->dl_parent_blkno != parent_blkno, " \"%.*s\": old parent: %llu, new: %llu\n", @@ -284,31 +279,16 @@ out_attach: spin_unlock(&dentry_attach_lock); /* - * Creation of a new file means that nobody can possibly have - * this name in the system, which means that acquiry of those - * locks can easily be optimized. - */ - if (create) { - ret = ocfs2_create_new_lock(OCFS2_SB(inode->i_sb), - &dl->dl_lockres, 0); - if (ret) - mlog_errno(ret); - goto out; - } - - /* * This actually gets us our PRMODE level lock. From now on, * we'll have a notification if one of these names is * destroyed on another node. */ ret = ocfs2_dentry_lock(dentry, 0); - if (ret) { + if (!ret) + ocfs2_dentry_unlock(dentry, 0); + else mlog_errno(ret); - goto out; - } - ocfs2_dentry_unlock(dentry, 0); -out: dput(alias); return ret; @@ -419,8 +399,7 @@ void ocfs2_dentry_move(struct dentry *dentry, struct dentry *target, ocfs2_dentry_lock_put(osb, dentry->d_fsdata); dentry->d_fsdata = NULL; - ret = ocfs2_dentry_attach_lock(dentry, inode, - OCFS2_I(new_dir)->ip_blkno, 0); + ret = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(new_dir)->ip_blkno); if (ret) mlog_errno(ret); |