| Message ID | 20150212093649.6117.62111.stgit@buzz (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Thu 12-02-15 12:36:49, Konstantin Khlebnikov wrote: > Root level in quota tree must be already allocated otherwise this block > could be used for something else. Thanks. I've added the patch to my tree. Honza > > Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> > --- > fs/quota/quota_tree.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/fs/quota/quota_tree.c b/fs/quota/quota_tree.c > index d65877f..58efb83 100644 > --- a/fs/quota/quota_tree.c > +++ b/fs/quota/quota_tree.c > @@ -349,6 +349,13 @@ static inline int dq_insert_tree(struct qtree_mem_dqinfo *info, > struct dquot *dquot) > { > int tmp = QT_TREEOFF; > + > +#ifdef __QUOTA_QT_PARANOIA > + if (info->dqi_blocks <= QT_TREEOFF) { > + quota_error(dquot->dq_sb, "Quota tree root isn't allocated!"); > + return -EIO; > + } > +#endif > return do_insert_tree(info, dquot, &tmp, 0); > } > >
diff --git a/fs/quota/quota_tree.c b/fs/quota/quota_tree.c index d65877f..58efb83 100644 --- a/fs/quota/quota_tree.c +++ b/fs/quota/quota_tree.c @@ -349,6 +349,13 @@ static inline int dq_insert_tree(struct qtree_mem_dqinfo *info, struct dquot *dquot) { int tmp = QT_TREEOFF; + +#ifdef __QUOTA_QT_PARANOIA + if (info->dqi_blocks <= QT_TREEOFF) { + quota_error(dquot->dq_sb, "Quota tree root isn't allocated!"); + return -EIO; + } +#endif return do_insert_tree(info, dquot, &tmp, 0); }
Root level in quota tree must be already allocated otherwise this block could be used for something else. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> --- fs/quota/quota_tree.c | 7 +++++++ 1 file changed, 7 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html