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fsnotify: unify inode and mount marks handling

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There's a lot of common code in inode and mount marks handling.  Factor it
out to a common helper function.

Signed-off-by: Jan Kara <jack@suse.cz>
Cc: Eric Paris <eparis@redhat.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Kara 2014-12-12 16:58:36 -08:00 • committed by Linus Torvalds
parent 820c12d5d6
commit 0809ab69a2
11 changed files with 160 additions and 229 deletions
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16
kernel/audit_tree.c
View file

@ -174,9 +174,9 @@ static void insert_hash(struct audit_chunk *chunk)
struct fsnotify_mark *entry = &chunk->mark;
struct list_head *list;
if (!entry->i.inode)
if (!entry->inode)
return;
list = chunk_hash(entry->i.inode);
list = chunk_hash(entry->inode);
list_add_rcu(&chunk->hash, list);
}
@ -188,7 +188,7 @@ struct audit_chunk *audit_tree_lookup(const struct inode *inode)
list_for_each_entry_rcu(p, list, hash) {
/* mark.inode may have gone NULL, but who cares? */
if (p->mark.i.inode == inode) {
if (p->mark.inode == inode) {
atomic_long_inc(&p->refs);
return p;
}
@ -231,7 +231,7 @@ static void untag_chunk(struct node *p)
new = alloc_chunk(size);
spin_lock(&entry->lock);
if (chunk->dead || !entry->i.inode) {
if (chunk->dead || !entry->inode) {
spin_unlock(&entry->lock);
if (new)
free_chunk(new);
@ -258,7 +258,7 @@ static void untag_chunk(struct node *p)
goto Fallback;
fsnotify_duplicate_mark(&new->mark, entry);
if (fsnotify_add_mark(&new->mark, new->mark.group, new->mark.i.inode, NULL, 1)) {
if (fsnotify_add_mark(&new->mark, new->mark.group, new->mark.inode, NULL, 1)) {
fsnotify_put_mark(&new->mark);
goto Fallback;
}
@ -386,7 +386,7 @@ static int tag_chunk(struct inode *inode, struct audit_tree *tree)
chunk_entry = &chunk->mark;
spin_lock(&old_entry->lock);
if (!old_entry->i.inode) {
if (!old_entry->inode) {
/* old_entry is being shot, lets just lie */
spin_unlock(&old_entry->lock);
fsnotify_put_mark(old_entry);
@ -395,7 +395,7 @@ static int tag_chunk(struct inode *inode, struct audit_tree *tree)
}
fsnotify_duplicate_mark(chunk_entry, old_entry);
if (fsnotify_add_mark(chunk_entry, chunk_entry->group, chunk_entry->i.inode, NULL, 1)) {
if (fsnotify_add_mark(chunk_entry, chunk_entry->group, chunk_entry->inode, NULL, 1)) {
spin_unlock(&old_entry->lock);
fsnotify_put_mark(chunk_entry);
fsnotify_put_mark(old_entry);
@ -611,7 +611,7 @@ void audit_trim_trees(void)
list_for_each_entry(node, &tree->chunks, list) {
struct audit_chunk *chunk = find_chunk(node);
/* this could be NULL if the watch is dying else where... */
struct inode *inode = chunk->mark.i.inode;
struct inode *inode = chunk->mark.inode;
node->index |= 1U<<31;
if (iterate_mounts(compare_root, inode, root_mnt))
node->index &= ~(1U<<31);