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fuse: fix leaked aux requests
Auxiliary requests chained on req->misc.write.next may be leaked on truncate. Free these as well if the parent request was truncated off. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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1 changed files with 10 additions and 0 deletions
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@ -1494,6 +1494,7 @@ static void fuse_send_writepage(struct fuse_conn *fc, struct fuse_req *req,
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__releases(fc->lock)
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__acquires(fc->lock)
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{
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struct fuse_req *aux, *next;
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struct fuse_inode *fi = get_fuse_inode(req->inode);
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struct fuse_write_in *inarg = &req->misc.write.in;
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__u64 data_size = req->num_pages * PAGE_SIZE;
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@ -1520,6 +1521,15 @@ __acquires(fc->lock)
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out_free:
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fuse_writepage_finish(fc, req);
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spin_unlock(&fc->lock);
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/* After fuse_writepage_finish() aux request list is private */
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for (aux = req->misc.write.next; aux; aux = next) {
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next = aux->misc.write.next;
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aux->misc.write.next = NULL;
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fuse_writepage_free(fc, aux);
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fuse_put_request(fc, aux);
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}
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fuse_writepage_free(fc, req);
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fuse_put_request(fc, req);
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spin_lock(&fc->lock);
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